Preface  | SigSpec User's Manual  | Cinderella User's Manual

Die Serie Communications in Asteroseismology (CoAst) stellt eine international gefragte Plattform für wissenschaftliche Publikationen der neuesten Forschungsergebnisse auf dem Gebiet der Asteroseismologie dar. Forschungsgegenstand der Asteroseismologie sind veränderliche und pulsierende Sterne. Neben den halbjährlich erscheinenden regulären Ausgaben mit Beiträgen aus der laufenden Forschung werden auch Sonderausgaben für Konferenzberichte bzw. Programmhandbücher herausgegeben. 

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Communications in Asteroseismology, Vol. 163 (December 2011)

Communications in Asteroseismology, Vol. 163 (December 2011) 2011 163 163 December

Analyses of Crawford’s uvby β calibrations using the pulsational variations of FG Vir | A spectroscopic study of the hybrid pulsator γ Pegasi  | Frequency analysis of five short periodic pulsators | Update and Additional Frequencies for Kepler Star KIC 9700322 | New pulsation analysis of the oscillating Eclipsing Binary BG Peg

Die Serie Communications in Asteroseismology (CoAst) stellt eine international gefragte Plattform für wissenschaftliche Publikationen der neuesten Forschungsergebnisse auf dem Gebiet der Asteroseismologie dar. Forschungsgegenstand der Asteroseismologie sind veränderliche und pulsierende Sterne. Neben den halbjährlich erscheinenden regulären Ausgaben mit Beiträgen aus der laufenden Forschung werden auch Sonderausgaben für Konferenzberichte bzw. Programmhandbücher herausgegeben. The publication series of Communications in Asteroseismology (CoAst) is one of the most important international journals in the field of asteroseismology. Asteroseismology is the science of variable and pulsating stars. Every six months CoAst publishes a newsletter with papers on ongoing research projects. Besides these regular issues, special issues such as conference proceedings or program manuals are published in this series.

Communications in Asteroseismology, Vol. 162 (September 2011)

Communications in Asteroseismology, Vol. 162 (September 2011) 2011 162 162 September

Scaled oscillation frequencies and échelle diagrams as a tool for comparative asteroseismology | Photometric observations and frequency analysis of the δ Scuti star IP UMa | Photometric and Spectroscopic Study of the δ Scuti Stars FH Cam, CU CVn and CC Lyn | A comparison of Bayesian and Fourier methods for frequency determination in asteroseismology | A new eclipsing binary system with a pulsating component detected by CoRoT

Scientific Papers

Scaled oscillation frequencies and échelle diagrams as a tool for comparative asteroseismology by T. R. Bedding and H. Kjeldsen 3

Photometric observations and frequency analysis of the d Scuti star IPUMa by D. Sinachopoulos, P. Gavras, Chr. Ducourant 17

Photometric and Spectroscopic Study of the d Scuti Stars FH Cam, CU CVn and CC Lyn by G. J. Conidis, K. D. Gazeas, C. C. Capobianco, W. Ogloza 23

A comparison of Bayesian and Fourier methods for frequency determination in asteroseismology by T.R.White, B.J. Brewer, T. R.Bedding, D.Stello and H.Kjeldsen 39

A new eclipsing binary system with a pulsating component detected by CoRoT by K. Sokolovsky, C. Maceroni, M.Hareter, C.Damiani, L. Balaguer-N ´u ~nez, and I.Ribas 55 

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Communications in Asteroseismology, Vol. 161 (January‒June 2010)

Communications in Asteroseismology, Vol. 161 (January‒June 2010) 2010 161 161 January‒June

Introductory Remarks | Observations of candidate oscillating eclipsing binaries and two newly discovered pulsating variables  | NGC 1817: the richest population of δ Scuti stars | The frequency spectrum of periodically modulated sinusoidal oscillation | Effects of resolution and helium abundance in A star surface convection simulations | Survey of Candidate Pulsating Eclipsing Binaries - I  | Automated extraction of oscillation parameters for Kepler observations of solar-type stars

Die Serie Communications in Asteroseismology (CoAst) stellt eine international gefragte Plattform für wissenschaftliche Publikationen der neuesten Forschungsergebnisse auf dem Gebiet der Asteroseismologie dar. Forschungsgegenstand der Asteroseismologie sind veränderliche und pulsierende Sterne. Neben den halbjährlich erscheinenden regulären Ausgaben mit Beiträgen aus der laufenden Forschung werden auch Sonderausgaben für Konferenzberichte bzw. Programmhandbücher herausgegeben.  

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Communications in Asteroseismology, Vol. 160 (February 2010)

Communications in Asteroseismology, Vol. 160 (February 2010) 2010 160 160 February

Die Serie Communications in Asteroseismology (CoAst) stellt eine international gefragte Plattform für wissenschaftliche Publikationen der neuesten Forschungsergebnisse auf dem Gebiet der Asteroseismologie dar. Forschungsgegenstand der Asteroseismologie sind pulsierende Sterne und ihr Aufbau. Neben den halbjährlich erscheinenden regulären Ausgaben mit Beiträgen aus der laufenden Forschung werden auch Sonderausgaben für Konferenzberichte bzw. Programmhandbücher herausgegeben. 



This colloquium was the 38th Li‘ege International Astrophysical Colloquium

(38thLIAC -http://www.ago.ulg.ac.be/APub/Colloques/Liac38);

it was also held under the auspices of the European Helio- and Asteroseismology Network

(HELAS - http://www.helas-eu.org/), the CoRoT Evolution and Seismic Tools Activity

(CoRoT/ESTA - http://www.astro.up.pt/esta/) and the Belgian Asteroseismology Group

(BAG - http://www.asteroseismology.be). The first part of the conference was devoted to the internal structure of massive stars with session 1 dealing with the theoretical aspects of non standard physical processes while session 2 presented the challenges met in stellar modelling when introducing these physical processes. Session 3 was a “state of the art” in atmospheres, mass loss and stellar winds in massive stars. Session 4 presented the pulsation observations in massive stars while session 5 discussed the asteroseismic signatures of the physical processes involved in their internal structure. A final session 6 was essentially focused on the interpretation of the asteroseismic observations of ground-based, MOST and CoRoT targets. The publication series of Communications in Asteroseismology (CoAst) is one of the most important international journals in the field of asteroseismology. Asteroseismology is the science concerned with stellar pulsation and stellar structure. Every six months CoAst publishes a newsletter with papers about the latest results and ongoing research projects. Besides these regular issues, special issues such as conference proceedings or software manuals are published in this series. 



This colloquium was the 38th Li‘ege International Astrophysical Colloquium

(38thLIAC -http://www.ago.ulg.ac.be/APub/Colloques/Liac38);

it was also held under the auspices of the European Helio- and Asteroseismology Network

(HELAS - http://www.helas-eu.org/), the CoRoT Evolution and Seismic Tools Activity

(CoRoT/ESTA - http://www.astro.up.pt/esta/) and the Belgian Asteroseismology Group

(BAG - http://www.asteroseismology.be). The first part of the conference was devoted to the internal structure of massive stars with session 1 dealing with the theoretical aspects of non standard physical processes while session 2 presented the challenges met in stellar modelling when introducing these physical processes. Session 3 was a “state of the art” in atmospheres, mass loss and stellar winds in massive stars. Session 4 presented the pulsation observations in massive stars while session 5 discussed the asteroseismic signatures of the physical processes involved in their internal structure. A final session 6 was essentially focused on the interpretation of the asteroseismic observations of ground-based, MOST and CoRoT targets.

Evolution and pulsation of massive stars on the main sequence and close to it

Communications in Asteroseismology, Vol. 158 (July 2009)

Communications in Asteroseismology, Vol. 158 (July 2009) 2009 158 158 July

Preface | Challanges for stellar pulsation and evolution theory | μ Herculis: Analysis of EW time series of a solar-type pulsator  | Asteroseismology of solar–type stars with SARG@TNG  | Using p-mode excitation rates for probing convection in solar-like stars | Further progress on solar age caliberation | Parametric interaction of coronal loops with p modes | A preliminary glimpse on CoRoT results and expectations | Asteroseismology of B stars | ”Hybrid” pulsators – fact or fiction?  | TW Dra: NRP mode identification with FAMIAS | Preliminary results of V440 Per and α UMi observations with the Poznan Spectroscopic Telescope  | 2D modeling of a Cepheid, moving grid approach | Blazhko variables – recent results | CZ Lacertae – a Blazhko RR Lyrae star with multiperiodic modulation  | The true Blazhko behaviour of DM Cyg | Asteroseismology of pre-main sequence stars | Asteroseismology of chemically peculiar stars | The pulsating component of the B[e]/X-Ray transient and multiple system CI Cam (XTE J0421+560) | Asteroseismology and evolution of EHB stars | A search for Extreme Horizontal Branch pulsators in ω Cen | Time-resolved spectroscopy of the planet-hosting sdB pulsator V391 Pegasi | Long-term EXOTIME photometry and follow-up spectroscopy of the sdB pulsator HS 0702+6043 | Search for sdB/WD pulsators in the Kepler FOVAsteroseismology and evolution of GW Vir stars | Asteroseismology and evolution of GW Vir stars | UV spectroscopy of the hybrid PG 1159-type central stars of the planetary nebulae NGC 7094 and Abell 43 | Towards a dynamical mass of a PG 1159 star: radial velocities and spectral analysis of SDSS J212531−010745 | TT Arietis – observations of a Cataclysmic Variable Star with the MOST Space Telescope  | A progress report on the study of the optical variability of the old nova HR Del | A study of the atmospheric structure of AX Mon (HD 45910) | η Carinae - The outer ejecta | Time series analysis with the VSAA method | Mapping pulsations on rapidly rotating components of eclipsing binaries | Physical parameters of contact binaries through 2-D and 3-D correlation diagrams | Musical scale estimation for some multiperiodic pulsating stars

Die Serie Communications in Asteroseismology (CoAst) stellt eine international gefragte Plattform für wissenschaftliche Publikationen der neuesten Forschungsergebnisse auf dem Gebiet der Asteroseismologie dar. Forschungsgegenstand der Asteroseismologie sind veränderliche und pulsierende Sterne. Neben den halbjährlich erscheinenden regulären Ausgaben mit Beiträgen aus der laufenden Forschung werden auch Sonderausgaben für Konferenzberichte bzw. Programmhandbücher herausgegeben.



JENAM (Joint European and National Astronomy Meeting) ist die größte jährliche Zusammenkunft der europäischen Berufsastronomen, die diesmal im September 2008 in Wien stattfand. Die Konferenz beherbergte neun Minisymposien, wobei eines der Asteroseismologie gewidmet war. Die neuesten Entwicklungen auf diesem Gebiet sind im vorliegenden Band im Rahmen von Übersichts- und Detailartikeln zusammengefasst.



…



The publication series of Communications in Asteroseismology (CoAst) is one of the most important international journals in the field of asteroseismology. Asteroseismology is the science of variable and pulsating stars. Every six months CoAst publishes a newsletter with papers on ongoing research projects. Besides these regular issues, special issues such as conference proceedings or program manuals are published in this series.



JENAM (Joint European and National Astronomy Meeting) is the largest yearly meeting of Europe's professional astronomer and was hosted in September 2008 in Vienna. The conference contained nine minisymposia, one of them was devoted to asteroseismology. This issue summarizes the latest developments in this field in the form of review and contributed articles. 

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Communications in Asteroseismology, Vol. 159 (March 2009)

Communications in Asteroseismology, Vol. 159 (March 2009) 2009 159 159 March

Preface | List of participants | Session 0: Introduction | Session1A: DATA ‒ Ground-based observations | Session1B: DATA ‒ Space missions | Session2A: MODES ‒ Extracting eigenmode frequencies | Session2B: MODES ‒ Mode identification | Session3A: STARS ‒ Convection | Session3B: STARS ‒ Opacity driving, levitation, opacity data | Session3C: STARS ‒ Effects of rotation on stellar structureand pulsation | Session3D: STARS ‒ Effects of magnetic fields on stellar pulsation | Session3E: STARS ‒ Oscillations and stellar models | Session 4: Future asteroseismic projects | Poster session

Die Serie Communications in Asteroseismology (CoAst) stellt eine international gefragte Plattform für wissenschaftliche Publikationen der neuesten Forschungsergebnisse auf dem Gebiet der Asteroseismologie dar. Forschungsgegenstand der Asteroseismologie sind pulsierende Sterne und ihr Aufbau. Neben den halbjährlich erscheinenden regulären Ausgaben mit Beiträgen aus der laufenden Forschung werden auch Sonderausgaben für Konferenzberichte bzw. Programmhandbücher herausgegeben. Volume 157 berichtet über einen wissenschaftlichen Workshop, der im Juni 2008 in Wroclaw, Polen, stattgefunden hat. Thema dieses Workshops war die Interpretation von asteroseismologischen Daten. In dieser Ausgabe wird sowohl die Datengewinnung mit bodengebundenen Teleskopen als auch mit Satelliten diskutiert und die Auswirkungen von Opazität, Konvektion, Rotation und Magnetfeldern auf Sternpulsationen und deren Stabilität erörtert. Modenidentifikation und die Extraktion von Eigenmoden-Frequenzen aus den Daten waren zwei weitere große Themen dieses Workshops. Auch in der Zukunft geplante Projekte wurden vorgestellt und diskutiert. 

Proceedings of the Wroclaw HELAS Workshop "Interpretation of Asterseismic Data" Wroclaw/Poland 2008

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Communications in Asteroseismology, Vol. 157 (December 2008)

Communications in Asteroseismology, Vol. 157 (December 2008) 2008 157 157 December

Preface | DAS User Manual | FAMIAS User Manual | Bibliography | Acknowledgements

Die Serie Communications in Asteroseismology (CoAst) stellt eine international gefragte Plattform für wissenschaftliche Publikationen der neuesten Forschungsergebnisse auf dem Gebiet der Asteroseismologie dar. Forschungsgegenstand der Asteroseismologie sind pulsierende Sterne. Neben den halbjährlich erscheinenden regulären Ausgaben mit Beiträgen aus der laufenden Forschung werden auch Sonderausgaben für Konferenzberichte bzw. Programmhandbücher herausgegeben. Das Volume 155 enthält Benutzerhandbücher zweier Softwarewerkzeuge, die der Asteroseismologie gewidmet sind. Es handelt sich dabei um das Webinterface DAS (Database AsteroSeismology) und das Softwaretool FAMIAS (Frequency Analysis and Mode Identification for Asteroseismology). Beide Werkzeuge wurden im Rahmen des von der Europäischen Union gegründeten und finanzierten europäischen Netzwerkes für Helio- und Asteroseismologie (HELAS) mit dem Ziel erstellt, einen benutzerfreundlichen Zugang internationaler Forschungseinrichtungen zu state-of-the-art Methoden der Asteroseismologie zu ermöglichen. Erfolgreiche Asteroseismologie von Sternen auf der Hauptreihe hängt in großem Maße davon ab, dass die Oberflächenstruktur der Pulsationsmoden durch Modenidentifikation bekannt ist. Letztere kann durch Modellierung der Helligkeitsvariationen des Sterns in verschiedenen photometrischen Filtern und der Intensitätsvariationen im Profil von Absorptionsspektrallinien ermittelt werden. Das FAMIAS-Programmpaket bietet als Analysewerkzeug spektroskopischer und photometrischer Zeitseriendaten Werkzeuge, um Pulsationsmoden zu finden und eine Modenidentifikation durchzuführen und so die Pulsationsquantenzahlen, den Grad l und die azimuthale Ordung m zu bestimmen. Die Datenbank DAS enthält eine gut dokumentierte Bibliothek von Lichtkurven und Zeitserienspektren von ausgewählten pulsierenden Sternen. Sie bietet zusammen mit FAMIAS ein komplettes Werkzeugpaket für die Modenidentifikation für Forscher und Studenten, die auf dem Gebiet der Asteroseismologie arbeiten. Mit dieser Sonderausgabe von Communication in Asteroseismology wird das Benutzerhandbuch veröffentlicht. Die gedruckte Version des Benutzerhandbuchs wurde mit EU-Mitteln unterstützt. The publication series of Communications in Asteroseismology (CoAst) is one of the most important international journals in the field of asteroseismology. Asteroseismology is the science concerned with stellar pulsation. Every six months, CoAst publishes a newsletter with papers about the latest results and ongoing research projects. Besides these regular issues, special issues such as conference proceedings or software manuals are published in this series. CoAst volume 155 contains two manuals of software tools dedicated to asteroseismology: the web interface DAS (Database AsteroSeismology) and the software package FAMIAS (Frequency Analysis and Mode Identification for Asteroseismology). Both tools have been developed in the framework of European Helio- and Asteroseismology Network (HELAS), which was founded and is funded by the EU. The aim of the FAMIAS / DAS packages is to enable user-friendly access to state of the art methods for asteroseismology. Successful asteroseismology of stars on the main sequence hotter than the sun is highly dependent on the knowledge of the surface structure of pulsational modes, by means of mode identification. Mode identification can be derived from modeling the luminosity variations of the star in several photometric filters and intensity variations in the profile of absorption lines. FAMIAS is a sophisticated tool for the analysis of spectroscopic and photometric time series to find pulsational modes and the corresponding pulsational quantum numbers: the degree l and the azimutal order m. The database DAS contains a well documented library of light curves and spectroscopic time series data of selected pulsating stars. Together with FAMIAS, it provides a complete package of tools for mode identification to researchers as well as to students, working on the field of asteroseismology. This volume is the printed version of the two manuals and is funded by the EU.

User Manual for FAMIAS and DAS

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Communications in Asteroseismology, Vol. 155 (October 2008)

Communications in Asteroseismology, Vol. 155 (October 2008) 2008 155 155 October

The Whole Earth Telescope Network's August 2008 Workshop | Do You Need the WET: A Modest Proposal | Preliminary Asteroseismology of EC20058-5234 and Limits on Plasmon Neutrinos | An Update on XCOV25: GD358 | What We Can Learn from the Light Curves of GD 358 and PG 1351+489 | On Coordinating Time Series Spectroscopy with the WET | Preliminary Results in White Dwarf Research by a New Group | Recent observations of WD1524 at MIRO and participation in WET observing program | Introducing SPA, "The Stellar Photometry Assistant"

Die Serie Communications in Asteroseismology (CoAst) stellt eine international gefragte Plattform für wissenschaftliche Publikationen der neuesten Forschungsergebnisse auf dem Gebiet der Asteroseismologie dar. Forschungsgegenstand der Asteroseismologie sind pulsierende Sterne. Neben den halbjährlich erscheinenden regulären Ausgaben mit Beiträgen aus der laufenden Forschung werden auch Sonderausgaben für Konferenzberichte bzw. Programmhandbücher herausgegeben. Der Sammelband Vol. 154 beinhaltet die Konferenzbeiträge des in Delaware 2007 abgehaltenen Delaware Asteroseismic Research Center and Whole Earth Telescope Workshops. Im Rahmen dieses Arbeitstreffens wurden die neuesten theoretischen und beobachtungstechnischen Forschungsergebnisse auf dem Gebiet der Weißen Zwerge präsentiert.

 The publication series of Communications in Asteroseismology (CoAst) is one of the most important international journals in the field of asteroseismology. Asteroseismology is the science concerned with stellar pulsation. Every six months, CoAst publishes a newsletter with papers about the latest results and ongoing research projects. Besides these regular issues, special issues such as conference proceedings or software manuals are published in this series. CoAst Vol. 154 is a collection of the conference proceedings of the Delaware Asteroseismic Research Center and Whole Earth Telescope Workshop held in Delaware/USA in 2007. The proceedings provide the discussion of the latest theoretical as well as observational results mainly on white dwarfs.

DARC WET Workshop Proceedings August 2007

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Communications in Asteroseismology, Vol. 154 (June 2008)

Communications in Asteroseismology, Vol. 154 (June 2008) 2008 154 154 June

Introductory Remarks | Scientific Papers | The beat-curve approach applied to AEUMa | Photometric detection of pulsations in the stars of the wide binary WDS 12483-6708 | CCD photometry of β Scuti stars 7 Aql and 8 Aql | Asteroseismic modeling of the pulsating B star HD163830 | V703 Sco: Metal abundances and space motions | Determination of intrinsic mode amplitudes of the ß Scuti stars FG Vir and 44Tau | Analysing the Hipparcos epoch photometry of γ Bootis stars | A three-year photometric study of the oscillating Algol-type binary CT Her | The amplitudes of the γ Scuti star 4 CVn in 1991 | Johnson photometry of southern Blazhko targets | MOST found evidence for solar-type oscillations in the K2 giant star HD20884 | HELAS News | The new liaison CoAst - HELAS | Wroc_aw HELAS Webpage | HELAS IT-platform: A new tool for the European Helio- and Asteroseismology community. | CoAst Announcements | Recent special issues of Communications in Asteroseismology | Call for papers for the next issue of CoAst

Die Serie Communications in Asteroseismology (CoAst) stellt eine international gefragte Plattform für wissenschaftliche Publikationen der neuesten Forschungsergebnisse auf dem Gebiet der Asteroseismologie dar. Forschungsgegenstand der Asteroseismologie sind veränderliche und pulsierende Sterne. Neben den halbjährlich erscheinenden regulären Ausgaben mit Beiträgen aus der laufenden Forschung werden auch Sonderausgaben für Konferenzberichte bzw. Programmhandbücher herausgegeben. Volume 153 beinhaltet eine Vielzahl von Arbeiten mit Ergebnissen aus erdgebundenen und satellitengestüzten Beobachtungen pulsierender Sterne sowie über den Vergleich mit theoretischen Modellen. Erstmals berichtet auch das von der EU eingerichtete Forschungsnetzwerk HELAS - European Helio- and Asteroseismology Network - über neue Instrumente und Strukturen für den Daten- und Wissensaustausch unter Astronomen.



…



The publication series of Communications in Asteroseismology (CoAst) is one of the most important international journals in the field of asteroseismology. Asteroseismology is the science concerned with stellar pulsation. Every six months, CoAst publishes a newsletter with papers about the latest results and ongoing research projects. Besides these regular issues, special issues such as conference proceedings or software manuals are published in this series. The first newsletter in 2008 again covers a wide range of scientific research. The papers in this volume report progress and results of ground based and space borne observations of pulsating stars with photometric and spectroscopic techniques. Theoretical papers compare the observational mode identification with seismic models. Furthermore, the European Helio- and Asteroseismic network (HELAS, European Commission's Sixth Framework Program) reports on new tools and structure for scientific exchange among astronomers. 

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Communications in Asteroseismology, Vol. 153 (April 2008)

Communications in Asteroseismology, Vol. 153 (April 2008) 2008 153 153 April

Preface | BRITE-Constellation: Astrophysical Concept | BRITE-Austria/TUG Sat1: Project Overview | From MOST to BRITE: With a Stopover at CanX-2 | BRITE-Austria/TUG Sat1: System Design and Simulation Results | BRITE-Constellation: Science Operations Concept | BRITE-Constellation: Simulation of Photometric Performance | BRITE Orbits - Visiblity and Feature Plots | BRITE-Constellation: Observation Planning | BRITE-Austria/TUG Sat1: Ground Station Technology | BRITE-Austria/TUG Sat1: Launch Opportunities | A MOST open-field data reduction software and its applications to BRITE | BRITE-Constellation: Input Catalogue | The BRITE satellite and Delta Scuti Stars: The Magnificent Seven | CP Stars - probing stellar surface with BRITE Constellation | Observing γ Doradus Stars with BRITE - an Outlook | β Pictoris: Planets and Pulsations  | Stellar Activity with BRITE: the “Aurigae” field | Exploring solar-type pulsation with BRITE | Identifying pulsation modes from two-passband photometry | Theoretical Aspects of Massive Stars | β Cephei and Slowly Pulsating B stars as targets for BRITE-Constellation | The search for extrasolar planets with BRITE | Cluster and Association Members | BRITE stars on the AGB | List of Participants

Die Serie Communications in Asteroseismology (CoAst) stellt eine international gefragte Plattform für wissenschaftliche Publikationen der neuesten Forschungsergebnisse auf dem Gebiet der Asteroseismologie dar. Forschungsgegenstand der Asteroseismologie sind veränderliche und pulsierende Sterne. Neben den halbjährlich erscheinenden regulären Ausgaben mit Beiträgen aus der laufenden Forschung werden auch Sonderausgaben für Konferenzberichte bzw. Programmhandbücher herausgegeben. Diese Sonderausgabe von CoAst widmet sich der technischen Planung sowie dem wissenschaftlichen Hintergrund des ersten Österreichischen Satellitenpaares: UniBrite/BriteAustria. In den Konferenzbeiträgen zum First BRIght Target Explorer Workshop werden Fragen zum optimalen Satellitendesign, der Flugbahn, den Bodenstationen sowie Startmöglichkeiten erörtert. In weiterer Folge werden verschiede Klassen variabler Sterne als mögliche Zielobjekte und Beobachtungsstrategien für die photometrischen Beobachtungen besprochen.



Contents:



W. Weiss: BRITE-Constellation: Astrophysical Concept; O. Koudelka: BRITE-Austria/TUG Sat1: Project Overview; C. Grant and R. Zee: From MOST to BRITE: With a Stopover at CanX-2; M. Unterberger: BRITE-Austria/TUG Sat1: System Design and Simulation Results; R. Kuschnig: BRITE-Constellation: Science Operations Concept; A. Kaiser, S. Mochnacki and W. W. Weiss: BRITE-Constellation: Simulation of Photometric Performance; C. Lhotka and B. Funk: BRITE Orbits - Visiblity and Feature Plots; A. Kaiser and R. Kuschnig: BRITE-Constellation: Observation Planning; O. Koudelka: BRITE-Austria/TUG Sat1: Ground Station Technology; B. Josseck: BRITE-Austria/TUG Sat1: Launch Opportunities; D. Huber and P. Reegen: A MOST open-field data reduction sofware and its applications to BRITE; A. Kaiser, K. Zwintz and W. W. Weiss: BRITE-Constellation: Input Catalogue; M. Breger: The BRITE satellite and Delta Scuti Stars: The Magnificent Seven; T. Lüftinger and W. W. Weiss: CP Stars - probing stellar surface structure with BRITE Constellation; M. Gruberbauer, R. Neuteufel and W. W. Weiss: Observing ? Doradus Stars with BRITE - an Outlook; K. Zwintz: ß Pictoris: Planets and Pulsations; K. G. Strassmeier: Stellar Activity with BRITE: the "Aurigae" field; T. Kallinger: Exploring solar-type pulsation with BRITE; J. Daszynska-Daszkiewicz: Identifying pulsation modes from two-passband photometry; E. A. Dorfi and A. Stökl: Theoretical Aspects of Massive Stars; G. Handler: ß Cephei and Slowly Pulsating B stars as targets for BRITE-Constellation; R. Dvorak and Á. Bazsó: The search for extrasolar planets with BRITE; E. Paunzen: Cluster and Association Members; T. Lebzelter and J. Hron: BRITE stars on the AGB 

BRIght Target Explorer Workshop Proceedings

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Communications in Asteroseismology, Vol. 152 (January 2008)

Communications in Asteroseismology, Vol. 152 (January 2008) 2008 152 152 January

Introductory Remarks | Searching for p-modes in n Boötis &amp;amp; Procyon using MOST satellite data | On the nature of theδ Scuti star HD 115520 | Photometric observations and frequency analysis of the δ Scuti NT Hya | Asteroseismology of δ Scuti stars in open clusters: Praesepe | Analysis of II1/0 (_) period ratios in the presence of near degeneracy | Revised instability domains of SPB and β Cephei stars | Near infrared spectroscopy of the HADS stars V703 Sco and 1 Mon: First steps towards the use of near-IR spectroscopy for the study of δ Scuti stars | A new slowly pulsating subdwarf-B star: HD 4539 | Call for papers for the next issue of CoAst

Die Serie Communications in Asteroseismology (CoAst) stellt eine international gefragte Plattform für wissenschaftliche Publikationen der neuesten Forschungsergebnisse auf dem Gebiet der Asteroseismologie dar. Forschungsgegenstand der Asteroseismologie sind veränderliche und pulsierende Sterne. Neben den halbjährlich erscheinenden regulären Ausgaben mit Beiträgen aus der laufenden Forschung werden auch Sonderausgaben für Konferenzberichte bzw. Programmhandbücher herausgegeben. Die Arbeiten in Vol.151 berichten über ein breites Spektrum der asteroseismologischen Forschung: Neben Beiträgen über die erdgebundene photometrische sowie spektroskopische Beobachtung von pulsierenden Sternen werden auch die neuesten Ergebnisse aus den Beobachtungen mit dem MOST-Satelliten besprochen. Theoretische Arbeiten über Konvektion und Opazitäten ergänzen diese Ausgabe.



Contents:



D. B. Guenther, T. Kallinger, P. Reegen, W. W. Weiss, J. M. Matthews, R. Kuschnig, A. F. J. Moffat, S. M. Rucinski, D. Sasselov and G. A. H. Walker: Searching for ?-modes in ? Boötis & Procyon using MOST satellite data; L. Fox Machado; J. H. Peña, G. Muñoz and B. Vargas: On the nature of the d Scuti star star HD 115520; D. Sinachopoulos and P. Gavras: Photometric observations and frequency analysis of the d Scuti NT Hya; J. C. Suárez, E. Michel, G. Houdek, F. Pérez Hernández and Y. Lebreton: Asteroseismology of d Scuti Stars in open clusters: Praesepe; J. C. Suárez, R. Garrido and A. Moya: Analysis of II1/0 (O) period ratios in the presence of near degeneracy; A. Miglio, J. Montalbán and M.-A. Dupret: Revised instability domains of SPB and ß Cephei stars; P. J. Amado: Near infrared spectroscopy of the HADS stars V703 Sco and 1 Mon: First steps towards the use of near-IR spectroscopy for the study of d Scuti stars; C. Schoenaers and A. E. Lynas-Gray: A new slowly pulsating subdwarf-B star: HD 4539; M. Breger and P. Beck: Call for papers for the next issue of CoAst



…



The publication series of Communications in Asteroseismology (CoAst) is one of the most important international journals in the field of asteroseismology. Asteroseismology is the science concerned with stellar pulsation. Every six months, CoAst publishes a newsletter with papers about the latest results and ongoing research projects. Besides these regular issues, special issues such as conference proceedings or software manuals are published in this series. This volume of CoAst covers a wide range of scientific research. The papers in this volume report progress and results of ground based and space borne observations of pulsating stars with photometric and spectroscopic techniques. Contributions on modeling convection and the influence of the new opacities on seismic models add interesting theoretical results to this volume of CoAst. 

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Communications in Asteroseismology, Vol. 151 (August 2007)

Communications in Asteroseismology, Vol. 151 (August 2007) 2007 151 151 August

Preface | Identification of modes in main-sequence pulsators by means of multi-color photometry | Influence of the convective flux perturbation on stellar oscillations: application to δ  Scuti and γ Doradus stars | Testing the internal physics of white dwarfs from their pulsational properties | The Blazhko Effect: Facts, Figures and Future work | Numerical modelling of the RR Lyrae instability strip | U B V I Time-series Photometry of the Old LMC Globular Cluster Reticlum | Long-term photometric study of LBVs in M33 | Cepheids in binary systems - new candidates in the Magellanic Clouds | A continuous population of variable stars up to about 1.5 mag above the horizontal branch? | The core/envelope asymmetry in p-mode pulsating stars | Mapping non-radial pulsation using surface imaging techniques | High Amplitude δ Sct-type variables  | Pulsational behaviour of the HADS RY Lep | SZ Lyn: New pulsational and orbital elements based on old and recent photometric observations | Short-Period Variables in ASAS Photometry | Asteroseismology of Procyon: Preliminary results from SARG | The use of Petersen diagrams and period ratios in investigating the pulsational content of stars in the classical Instability Strip | Period-radius relation for semiregular and Mira stars | Relevant issues in the study of Pre-Main Sequence δ Scuti starsPulsatin stars in open clusters | Pulsatin stars in open clusters | A Variable Star Survey of the Open Cluster NGC 2126 | Amplitude and frequency variability of pulsating stars | New observational results on a pulsating B stars | Radial Velocity variations of the roAp-star HD122970: new results | Pulsation and Binarity in RZ Cas | AB Cas revisited | A few concluding remarks

Die Serie Communications in Asteroseismology (CoAst) stellt eine international gefragte Plattform für wissenschaftliche Publikationen der neuesten Forschungsergebnisse auf dem Gebiet der Asteroseismologie dar. Forschungsgegenstand der Asteroseismologie sind pulsierende Sterne. Neben den halbjährlich erscheinenden regulären Ausgaben mit Beiträgen aus der laufenden Forschung werden auch Sonderausgaben für Konferenzberichte bzw. Programmhandbücher herausgegeben The publication series of Communications in Asteroseismology (CoAst) is one of the most important international journals in the field of asteroseismology. Asteroseismology is the science concerned with stellar pulsation. Every six months, CoAst publishes a newsletter with papers about the latest results and ongoing research projects. Besides these regular issues, special issues such as conference proceedings or software manuals are published in this series. 

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Communications in Asteroseismology, Vol. 145 (June 2004)

Communications in Asteroseismology, Vol. 145 (June 2004) 2004 145 145 June

Introductory Remarks | Uncertainties in phase shifts and amplitude ratios: Theory and practice | A new photometric study of the high galactic latitude &amp;#x3B2; Cep star HNAqr | A three-site photometric campaign on the ZZ Ceti star WD1524-0030 | On the nature of HD207331: a new δ Scuti variable | Modeling the Pulsating sdB Star PG 1605+072 | Data Reduction pipeline for MOST Guide Stars and Application to two Observing Runs | First asteroseismic results from CoRoT | Announcement of HELAS III | Conference Review of the 38th LIAC / HELAS-ESTA / BAG Liége, Belgium, July 7-11 2008 | HELAS Local Helioseismology Activities

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Communications in Asteroseismology, Vol. 156 (November/December 2008)

Communications in Asteroseismology, Vol. 156 (November/December 2008) 2008 156 156 November/December

Preface | An overview of Michel Breger´s career | Delta Scuti stars: Observational aspects | Approaching asteroseismology of δ Scuti stars: problems and prospects | Observations of pulsations in roAp stars  | Theory of rapidly oscillating Ap stars | SX Phe stars in the Fornax dSph galaxy | REM observations of the Herbig Ae stars V346 Ori and PDS2 | Asteroseismology and mode driving of the Herbig Ae star HD 104237 | Asteroseismology of the extreme metal-deficient field high-amplitude SX Phe variable BL Cam | δ Sct stars in eclipsing binaries: the case of Y Cam | Strömgren photometry of the δ Sct star V402 Cep  | New pulsation pattern of RZ Cas observed spectroscopically in 2006  | Physical properties of the oEA star IV Cas | Pulsating components of eclipsing binaries from the ASAS-3 data | A theoretical scenario for PMS δ Scuti stars | 44 Tau: Discrimination between MS and post-MS models | An asteroseismic Main Sequence model for the δ Scuti star 44 Tau | The Nainital-Cape Survey: contributions to asteroseismology of CP stars | Vertical structure of pulsations in roAp stars | Non-LTE line formation in the atmospheres of Ap stars: importance for pulsational analysis of roAp stars | First Magnetic Doppler Images of a roAp star | Discussion on δ Scuti and roAp star | Asteroseismology of γ Doradus Variables: Past, Present, and Future | Theoretical aspects of g-mode pulsations in γ Doradus stars  | Observations of solar-like oscillations | Stellar Oscillations in Giant Stars | Theoretical asteroseismology of solar-like oscillations  | _ Boo stars among the γ Dor-type pulsators: the cases of HD 218427 and HD 239276 | Coordinated observational campaigns for non-radially pulsating objects | Analysis tools for non-radially pulsating objects | The convective envelope in γ Doradus stars: theoretical uncertainties  | A search for solar-type oscillations in K giants in M4 | Rotation and small separations of _ Cen A  | Solar-like Oscillations with Kepler | High-frequency interference peaks in solar-like stars  | Detection of p-mode oscillations in β Hydri from photometric observations with WIRE  | Solar-like oscillations in open cluster stars | Core modes as a seismic probe of mixing beyond the convective core | Two-scale mass-flux closure models for turbulence: p-mode amplitudes in solar-like stars | Discussion on solar-like oscillators and γ Doradus stars  | The present day of asteroseismology of β Cephei stars: observations | Observational Asteroseismology of slowly pulsating B stars  | Oscillations in main sequence B-type stars - challenges to theory | Candidate SPB and γ Doradus stars from microlensing surveys | An abundance analysis of slowly pulsating B stars | Temperature gradients in the core overshooting region  | A comparative study of B-type pulsators and non-pulsating chemically peculiar Bp stars  | Mode identification of multi-periodic Slowly Pulsating B-stars: results and problems | The ongoing 2005 - 2006 campaign on β Cephei stars in NGC 6910 and _ Persei (NGC 884) | Pulsating variables in NGC 3293, the open cluster with the most β Cephei stars known | A spectroscopic study of the β Cephei star 12 (DD) Lacertae  | Asteroseismology of the β Cephei star KP Per | Nitrogen excess in slowly-rotating β Cephei stars: deep mixing or diffusion? | An abundance study of the B-type targets for the asteroseismology programme of the CoRoT mission | Effects of diffusion in β Cephei stars | Amplitude Saturation in β Cephei Models - Preliminary Results | The β Cephei instability domain for the new solar composition and with new OP opacities | Instability strips of main sequence B stars: a parametric study of iron enhancement | Asteroseismology of the β Cephei star _ Eridani using differentially-rotating models | Interpretation of the Be star HD 163868 oscillation spectrum based on the MOST observations | g-modes in the late-type Be star β CMi detected by the MOST satellite | Discussion on β Cephei and SPB stars  | Observational white dwarf seismology  | The Future of Computational Asteroseismology  | Pulsating Hot Subdwarfs - An Observational Review | Ten years of asteroseismic modelling of pulsating B subdwarf stars: achievements, challenges, and prospects | The Red Edge of GW Virgins stars  | Doubling the number of DBVs and a closer look at their Instability Strip | GD 99 - an unusual, rarely observed DAV white dwarf  | Mapping Convection using Pulsating White Dwarf Stars  | Towards Asteroseismology of Long-Period Variable Subdwarf B Stars | An old puzzle in a new light: PG 1336-018  | Time resolved spectroscopy of the multiperiodic pulsating subdwarf B star PG 1605+072 | Change of splittings in Balloon 090100001  | Mode identification in the pulsating subdwarf Balloon 090100001 by means of the spectrophotometric method  | Time resolved spectroscopy of Balloon 090100001 | The frequency distribution of PG 1657+416, a rapidly pulsating sdB star  | Observations of 23 EC 14026-type pulsating subdwarf B stars  | Time-Series Spectroscopy of the subdwarf B Star PG 1219+534 | Stability analysis of sdO equilbrium models | Discussion on pulsating white dwarf and sdB stars  | Asteroseismology: Lessons From the Past and Prospects for the Future | The Network Activities in HELAS | The Delaware Asteroseismic Research Center: Convection in Pulsating White Dwarfs | Stellar Oscillations Network Group | Asteroseismology at Dome C in Antarctica  | A Fourier Tachometer at Dome C in Antarctica  | Use of NIR spectroscopy for the study of pulsating stars  | Jovian seismology: preliminary results of the SYMPA instrument | Small IRAIT Telescope: photometry and asteroseismology at Dome C  | MONET, HET and SALT and asteroseismological observations and theory in Göttingen  | A New Slovak Observatory 500 km from Vienna | Reflections on some aspects of ground-based observations for asteroseismology | Discussion on ground-based asteroseismology  | Asteroseismology with the WIRE satellite | One small satelite, so many light curves: Examples of δ Scuti asteroseismology from the MOST space mission  | CoRoT data contribution to stellar seismology | Microsatellites | Asteroseismology with the Kepler mission | The PLATO mission concept | Dynamos, Asteroseismology, and the Stellar Imager  | The ground-based counterpart of the CoRoT asteroseismic observations from space | Discussion on space-based asteroseismology | Indication of pulsation in young Brown Dwarfs | RR Lyrae stars: The changing light curve shape during the Blazhko cycle | Photometric campaigns for the Blazhko Project | RR Lyrae stars in M4  | Physical parameter determination of seven RR Lyrae stars in Bootes | List of participants 

Inhalt (u.a.):



M. BREGER: Delta Scuti stars: Observational aspects; M.S. Cunha: Theory of rapidly oscillating Ap stars; M. SACHKOV et al.: Vertical structure of pulsations in roAp stars; G. HOUDEK: Theoretical asteroseismology of solar-like oscillations; B.L. POPIELSKI: Core modes as a seismic probe of mixing beyond the convective core; M. GODART: Temperature gradients in the core overshooting region; W.A. DZIEMBOWSKI – J. DASZYNSKA-DASZKIEWICZ – A.A. PAMYATNYKH: Interpretation of the Be star HD 163868 oscillation spectrum based on the MOST observations; D. KILKENNY: Pulsating Hot Subdwarfs – An Observational Review; M.H. MONTGOMERY: Mapping Convection using Pulsating White Dwarf Stars; M. ROTH: The Network Activities in HELAS; I. KUDZEJ et al.: A New Slovak Observatory 500 km from Vienna; W.W. WEISS: Microsatellites; G. KOPACKI – S. FRANDSEN: RR Lyrae stars in M4 

Vienna Workshop on the Future of Asteroseismology

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Communications in Asteroseismology, Vol. 150 (June 2007)

Communications in Asteroseismology, Vol. 150 (June 2007) 2007 150 150 June

Introductory Remarks | The Potential of Non-standard Pulsation Models for Asteroseismology | NGC 2660 revisited | The moving bump in the light curves of SS For and RR Lyr | HD 114839 - An Am star showing both δ Scuti and γ Dor pulsations discovered through MOST photometry | Discovery of hybrid γ Dor and δ Sct pulsations in BD+18 4914 through MOST spacebased photometry  | 1 Mon: The ´lost´ 1979 - 1985 data | Amplitude variability of the cepheid V473 Lyr  | MOST Photometry of the roAp star HD 134214 | Towards accurate component properties of the Hyades binary 0² Tau | New frequency analyses of the multiperiodic δ Scuti variables CR Lyn and GG UMa  | Spectroscopy of HIP 113790 at the 5th OHP NEON summer school 

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Communications in Asteroseismology, Vol. 148 (December 2006)

Communications in Asteroseismology, Vol. 148 (December 2006) 2006 148 148 December

Preface | Stellar pulsation: an overview | Observational aspects of asteroseismology | Theoretical aspects of asteroseismology | Analysis of MERCATOR data - Part I: variable B stars | Analysis of MERCATOR data - Part II: variable A stars | A new spectroscopic mode identification method | Convection-pulsation interaction: theories and applications | Oscillations of rapidly rotating stars | Instability strip for pre-main-sequence stars | Seismic study of the Herbig Ae star HD 104237 | The new solar abundances - Part I: the observations | The new solar abundances - Part II: the crisis and possible solutions | Non-local time-dependent treatments of convection in A-G type stars | Effects of "extra-mixing" processes on the periods of high-order gravity modes in main-sequence stars | The mechanism in PMS and MS Scuti stars | Spectroscopic study of the pulsations in the roAp star HD 24712 | Excitation of oscillations in roAp stars: the roles of He settling and winds | Radiative forces and pulsations in Cephei stars | A line-profile analysis of the large-amplitude Cephei star Canis Majoris | An asteroseismic study of the Cephei star Canis Majoris | Polytropes as simple models of Cephei stars | Radial velocity variations in K giants: planets or pulsations? | An extensive study of the photometric behaviour of RV Tauri variables | A new tool for the seismic investigation of Doradus stars

JENAM 2005

Preface; Plenary talk - Stellar pulsation: an overview by D. W. Kurtz; Invited talk - Observational aspects of asteroseismology by G. Handler; Invited talk - Theoretical aspects of asteroseismology by E. Michel; Analysis of MERCATOR data - Part I: variable B stars by P. De Cat, M. Briquet, C. Aerts et al.; Analysis of MERCATOR data - Part II: variable A et F stars by J. Cuypers, K. Goossens, C. Schoenaers, P. De Cat, C. Aerts et al.; A new spectroscopic mode identification method by W.Zima; Convection-pulsation interaction: theories and applications by M.-A. Dupret, A. Grigahcéne, M. Gabriel and R. Garrido; Oscillations of rapidly rotating stars by D. Reese, F. Lignieres and M. Rieutord; Instability strip for pre-main-sequence stars by A. Grigahcéne, M.-A. Dupret, R. Garrido, M. Gabriel and R. Scuaire; Seismic study of the Herbig Ae star HD 104237 by M.-A. Dupret, T. Bohm, M.-J. Goupil, C. Catala and A. Grigahcéne; The new solar abundances - Part I: the observations by M. Asplund, N. Grevesse and A.J. Sauval; The new solar abundances - Part II: the crisis and possible solutions by J.Montalbán, A. Miglio, S. Théado, A. Noels and N. Grevesse; Non-local time-dependent treatments of convection in A-G type stars by M.-A. Dupret, R. Samadi, A. Grigahcéne, M.-J. Goupil and M. Gabriel; Effects of "extra-mixing" processes on the periods of high-order gravity modes in main-sequence stars by A. Miglio, J. Montalbán and A. Noels; The ε-mechanism in PMS and MS δ Scuti stars by G. Lenain, R. Scuaire, M.-A. Dupret and A. Noels; Spectroscopic study of the pulsations in the roAp star HD24712 by M. Sachkov et al.; Excitation of oscillations in roAp stars: the roles of He settling and winds by S. Théado and M. Cunha; Radiative forces and pulsations in β Cephei stars by P.-O. Bourge, G Alecian, A. Thoul, R. Scuaire and S. Théado; A line-profile analysis of the large-amplitude β Cephei star E1 Canis Majoris by S. Saesen, M. Briquet and C. Aerts; An asteroseismic study of the β Cephei star β Canis Majoris by M. Desmet, M. Briquet, A. Mazumdar and C. Aerts Polytropes as simple models of β Cephei stars by M. Godart, R. Scuaire, A. Thoul and A. Noels; Radial velocity variations in K giants: planets or pulsations? by S. Hekker, S. Reffert and A. Quirrenbach; ADDITIONAL ARTICLES An extensive study of the photometric behaviour of RV Tauri variables by E. Paunzen, I.L. Andronov, L.L. Chinarova, M. Konig and M. Rode-Paunzen; A new tool for the seismic investigation of γ Doradus stars by A. Moya, J.C. Suarez, P.J. Amado, S. Martín-Ruíz, A. Grigahcéne and R. Garrido  

Distant Worlds Proceedings of the Asteroseismology Session, JENAM 2005, 4-7 July 2005, Liége, Belgium

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Communications in Asteroseismology, Vol. 147 (January 2006)

Communications in Asteroseismology, Vol. 147 (January 2006) 2006 147 147 January

Editorial | New variable and multiple stars in the lower part of the Cepheid instability strip | OV And, a new field RRab Blazhko star? | Search for intrinsic variable stars in three open clusters: NGC 1664, NGC 6811 and NGC 7209 | High-degree non-radial modes in the δ Scuti star AV CetiProjected rotational velocities of some δ Scuti and γ Doradus stars | Projected rotational velocities of some δ Scuti and γ Doradus stars | Application of the Butterworth´s filter for excluding low-frequency trends | PODEX - PhOtometric Data EXtractor | Period04 User Guide

This issue includes many new exciting discoveries as well as the manual for PERIOD04 – the latest incarnation of our multiple-period-finding software package. Contents Preview: • New variable and multiple stars in the lower part of the Cepheid instability strip • OV And, a new field RRab Blazhko star? • Search for intrinsic variable stars in three open clusters: NGC 1664, NGC 6811 and NGC 7209 • High-degree non-radial modes in the δ Scuti star AV Ceti • Projected rotational velocities of some δ Scuti and γ Doradus stars • Application of the Butterworth’s filter for excluding low frequency trends • PODEX - PhOtometric Data EXtractor • Period04 User Guide.  

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Communications in Asteroseismology, Vol. 146 (June 2005)

Communications in Asteroseismology, Vol. 146 (June 2005) 2005 146 146 June

Editorial | Moment Method &amp; Pixel-by-Pixel Method: Complementary Mode Identification I. Testing FG Vir-like pulsation modes | Note on the short-period variability of V521 Cas in NGC 7789 | SZ Lyn: New BVRI CCD observations and improved pulsational and orbital elements | Asteroseismology of the β Cephei star HD 129929. Effects of a change in the metal mixture | Period04 - A successor to Period98 to be completed this year | Interpolation of Stellar Model Grids and Application to the NEMO Grid

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Communications in Asteroseismology, Vol. 144 (June 2004)

Communications in Asteroseismology, Vol. 144 (June 2004) 2004 144 144 June

Editorial | ENEAS: the European Network of Excellence in AsteroSeismologyThe ENEAS Portal | The ENEAS Portal | The public outreach programme of ENEAS | Follow-up observations of the DSCT V350 PegA Hare and Hound in a BAG: Asteroseismology of β Cephei stars | A Hare and Hound in a BAG: Asteroseismology of β Cephei stars | Photometry of Be stars in the vicinity of COROT primary targets for asteroseismology | The MOST and COROT prime target fields: A target inventory | VISAT - VIenna Selection of Astronomical Targets

Contents



C. Aerts, ENEAS: the European Network of Excellence in AsteroSeismology



E. Solano, The ENEAS Portal



D. W. Kurtz/K. Kolenberg/Z. Kollath/T. Teixeira, The public outreach programme of ENEAS



J. Vidal-Sainz/E. Garcia-Melendo/P. Lampens/P. Van Cauteren/P. Wils, Follow-up observations of the DSCT V350 Peg



Thoul et. al./BAG, A Hare and Hound in a BAG: Asteroseismology of Beta Cephei stars



J. Gutierrez-Soto/J. Fabregat/J. Suso/A. M. Hubert/M. Floquet/R. Garrido, Photometry of Be stars in the vicinity of COROT primary targets for asteroseismology



J. Oehlinger/A. Kaiser/T. Kallinger/P. Mittermayer/W. W. Weiss/K. Zwintz, The MOST and COROT prime target fields: A target inventory



T. Kallinger/K. Zwintz/A. Kaiser/P. Mittermayer/W. W. Weiss, VISAT - Vienna Selection of Astronomical Targets 

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Communications in Asteroseismology, Vol. 143 (July 2003)

Communications in Asteroseismology, Vol. 143 (July 2003) 2003 143 143 July

Editorial | First results from a multisite campaign on AV Cet | Comments on the upper main-sequence instability domains | A five month multitechnique, multisite campaign on the _ Cephei star _ Eridani | 1994 multisite photometry of the δ Scuti star _² Tau | Solar-like oscillations in δ Scuti stars | Fishing for Delta Scuti stars in the Hipparcos photometric databaseDiscovery of pulsation in the Am Star HD 102480 | Discovery of pulsation in the Am Star HD 102480 | Multiperiodicity of V350 Peg | The High Amplitude δ Scuti Variable Star GSC 3109-00162 | Is TU UMi a W UMa-type system ? | CCD photometry of XX Cyg

This is no empty bag! During the last decade, Asteroseismology has grown  to a level where the customary, wonderful informal contacts between different workers in a small field are no longer enough to stay  organized. So, why not bundle our expertise in a more organized way,  apply for financial assistance that individuals could only dream about,  and use some of these funds to support young scientists and allow them  to move between different groups? And to be a bit selfish, why should  you have to reinvent the wheel in your own country in your attempts to  try to persuade the various funding agencies that asteroseismology is an  important astronomical field? The supporting sci entific arguments used  in your proposal have already been written down several times by your  colleagues in other countries. It appears that a loose association of  asteroseismologists needs to be formed to support these and many other  common interests. Enter BAG, the Belgian Asteroseismology Group. Do not  be misled by the unassuming name! Under the leadership of Conny Aerts,  in October, this group invited representatives from different  institutions to Leuven in order to plan an Asteroseismology Society and  to write a joint proposal to the EU to establish a European Network of  Excellence in Asteroseismology (ENEAS). The meeting was a smashing  success with a high level of science. The discussions on details of new  committees and offices and how the offices are to be filled were kept to  a minimum. Such (necessary) discussions make people like me turn and  run away fast. Conny divided the time beautifully. Since the chances of  obtaining EU financing for the ENEAS proposal to the EU regrettably are  small, the formation of an asteroseismological society to assist the  scientists may turn out to have the largest long-term impact. What does  this editorial on the organization of the asteroseismologists have to do  with a Delta Scuti Newsletter? I may be biased in this matter, I admit.  But the growth in our knowledge of the behaviour of Delta Scuti and  related stars has been almost exponential during the last decades. Due  to this work, Delta Scuti stars form one of the main areas in  asteroseismology. Furthermore, it appears that every discovery of a new  type of pulsating variable in the end leads to the same unsolved  astrophysical questions such as mode selection, amplitude and period  variability. The answers to these scientific questions may come from  selecting the suitable pieces of the puzzle from many different types of  stars. Successful asteroseismology means many types of stars, from  solar-type all the way to the hot PG 1159 stars.......... We hope that  you find this issue of the newsletter interesting. The next volume of  the Communications will again be devoted to all aspects of  asteroseismology. So keep the news and articles coming! 

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Communications in Asteroseismology, Vol. 142 (December 2002)

Communications in Asteroseismology, Vol. 142 (December 2002) 2002 142 142 December

Multiple frequencies of 0² Tau: Comparison of ground-based and space measurements | PMS stars as COROT additional targets | The study of pulsating stars from the COROT exoplanet field data | 10 Aql, a new target for COROT | Status of the COROT ground-based photometric activities | Mode identification using the exoplanetary camera | COROT and the late stages of stellar evolution | Pulsations of Luminous Blue Variables | By-product of the V1162 Ori multisite campaign: the new Scuti star GSC 4778 00324 | Strømgren photometry of SX Phe = HD 223065

The satellite photometry of the _ Scuti star 0² Tau obtained with the Wide- Field Infrared Explorer (WIRE) led to the detection of 12 frequencies of pulsation (Poretti et al. 2002). We examine the available ground-based photometry in the literature to check whether these frequencies are also present. The re-analysis of the 1986 Delta Scuti Network data leads to 10 statistically significant frequencies (amplitude signal/noise ratio greater than 4.0). 9 of these 10 frequencies are in excellent agreement with those detected from space, while the 10th frequency is seen as a peak in the WIRE residuals, though not at a statistically significant level. Previous reports on amplitude variability are confirmed. 

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Michel Breger

Produkte