Asteroseismology Across the HR Diagram: Proceedings of the Asteroseismology Workshop Porto, Portugal 1–5 July 2002

302 Pages·2003·8.77 MB·English

by  H. Kjeldsen (auth.)

ASTEROSEISMOLOGY ACROSS
THEHRDIAGRAM
Proceedings of the Asteroseismology Workshop
Porto, Portugal
1-5 July 2002
Edited by:
MICHAEL J. THOMPSON
Imperial College, London, United Kingdom
MARGARIDA S. CUNHA
Centro de Astroj(sica da Universidade do Porto, Porto, Portugal
MARIO J.P.F.G. MONTEIRO
Centro de Astroj(sica da Universidade do Porto, Porto, Portugal
Reprinted from Astrophysics and Space Science
Volume 284, No.1, 2003
SPRINGER-SCIENCE+BUSINESS MEDIA, B.V.
A.C.I.P. Catalogue record for the book is available from the Library of Congress.
ISBN 978-90-481-6241-3 ISBN 978-94-017-0799-2 (eBook)
DOI 10.1007/978-94-017-0799-2
Printed an acid-free paper
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© 2003 Springer Science+Business Media Dordrecht
Originally published by Kluwer Academic Publishers in 2003
No part of the material protected by this copyright notice may be reproduced or
utilized in any form or by any means, electronic or mechanical,
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retrieval system, without written permis sion from the copyright owner.
ASTROPHYSICS AND SPACE SCIENCE / Vol. 284 No.1 2003
Special Issue:
ASTEROSEISMOLOGY ACROSS THE HR DIAGRAM
Proceedings of the Asteroseismology Workshop
Porto, Portugal
1-5 July 2002
Guest Editors:
MICHAEL J. THOMPSON, MARGARIDA S. CUNHA
and MARIO J.P.F.G. MONTEIRO
Foreword Xl
Committees and Sponsors Xlll
List of Participants XV
1. PRESENT OBSERVATIONAL STATUS
1.1 Space and Ground Based Data
H. KJELDSEN / Space and Ground Based Data for Asteroseismology 1
R. ALONSO, J.A. BELMONTE and T.M. BROWN / STARE Results on a
Single Field: Tens of New Pulsating Stars 13
I.W. ROXBURGH and F. FAVATA / The Eddington Mission 17
1.2 Present Status for Different Pulsators
F. BOUCHY and F. CARRIER / Present Observational Status of Solar-Type
Stars 21
D.W. KURTZ / Present Observational Status of the Intermediate Mass Stars 29
P. DE CAT / Present Observational Status of High Mass Pulsating Stars 37
M.S. O'BRIEN / Old Pulsators: White Dwarfs and their Immediate Precursors 45
C. CATA LA / 8 Scuti Pulsations in Pre-Main Sequence Stars 53
T.R. BEDDING / Solar-like Oscillations in Semiregular Variables 61
E.M. GREEN, K. CALLERAME, I.R. SEITENZAHL, B.A. WHITE, E.A.
HYDE, M. GIOVANNI, M. REED, G. FONTAINE and R. OSTENSEN
/ Discovery of a New Class of Pulsating Stars: Gravity Mode Pulsators
among Subdwarf B Stars 65
V. RIPEPI / Recent Observations of PMS 8 Scuti Stars 69
2. ASTEROSEISMIC TECHNIQUES
2.1 Mode Identification and Frequency Determination
M. REED / Multicolour Photometry for Mode Identification 73
J. TELTING / High-Resolution Spectroscopy for Mode Identification 85
A. PAMYATNYKH / Theoretical Clues for Mode Identification - Instability
Ranges and Rotational Splitting Patterns 97
T. APPOURCHAUX / Peakbagging for Solar-Like Stars 109
L.A. BALONA / Mode Identification from Line Profiles Using the Direct
Fitting Technique 121
J. DE RIDDER, G. MOLENBERGHS and C. AERTS / Statistical Revision of
the Moment Method 125
M.-A. DUPRET, R. SCUFLAIRE, A. NOELS, A. THOUL, R. GARRIDO,
A. MOYA, J. DE RIDDER, P. DE CAT and C. AERTS / An Improved
Method of Photometric Mode Identification: Applications to Slowly
Pulsating B, fJ Cephei, <5 Scuti and y Doradus Stars 129
J. DASZYNSKA-DASZKIEWICZ, W.A. DZIEMBOWSKI and A.A. PAMY-
ATNYKH / Photometric Nonadiabatic Observables in Rotating fJ Cephei
Models 133
M. BREGER / Gravity Modes in Delta Scuti Stars 137
2.2 Inferring Information from the Frequencies
T.S. METCALFE / Seismic Inference Using Genetic Algorithms 141
S. BASU / Stellar Inversions 153
D. GOUGH / On the Principal Asteroseismic Diagnostic Signatures 165
I.W. ROXBURGH and S. VORONTSOV / Diagnostics of the Internal Struc-
ture of Stars Using the Differential Response Technique 187
3. ASTEROSEISMIC CONSTRAINTS ON STELLAR STRUCTURE
3.1 Solar-like and Near Main-Sequence Stars
P. DEMARQUE and FJ. ROBINSON / Stellar Convection 193
S. VAUCLAIR / Mixing and Diffusion in Stars 205
L. BIGOT and W.A. DZIEMBOWSKI / Are Pulsation and Magnetic Axes
Aligned in roAp Stars? 217
R. SAMADI, MJ. GOUPIL, Y. LEBRETON, A. NORDLUND and F. BAUDIN
/ Seismic Diagnostics of Stellar Convection Treatment from Oscillation
Amplitudes of p-Modes 221
S. TURCOTTE and O. RICHARD / Of Variability, or its Absence, in HgMn
Stars 225
M.P. DI MAURO, J. CHRISTENSEN-DALSGAARD and L. PATERNO /
A Study of the Solar-Like Properties of fJ Hydri 229
TC. TEIXEIRA, J. CHRISTENSEN-DALSGAARD, F. CARRIER, e. AERTS,
S. FRANDSEN, D. STELLO, T MAAS, M. BURNET, H. BRUNTT,
J.R DE MEDEIROS, F. BOUCHY, H. KJELDSEN and F. PIJPERS /
Giant Vibrations in Dip 233
B. DINTRANS, A. BRANDENBURG, A. NORDLUND and RF. STEIN /
Stochastic Excitation of Gravity Waves by Overshooting Convection
in Solar-Type Stars 237
A. THOUL, R SCUFLAIRE, B. VATOVEZ, A. NOELS, P. MAGAIN,
M. BRIQUET and M.A. DUPRET / p-Mode Oscillations of ot Cen A 241
3.2 Away from the Main Sequence (Childhood and Old Age)
M. MARCONI and F. PALLA / Outstanding Issues for the Pulsation of Young
Stars 245
G. FONTAINE, P. BRASSARD and S. CHARPINET / Outstanding Issues
for Post-Main Sequence Evolution: Instability Strips and Excitation of
Modes in Compact Pulsators 257
R OREIRO, F. PEREZ HERNANDEZ, M. MANTEIGA, A. ULLA,
J.M. GONZALEZ PEREZ, M.R ZAPATERO OSORIO, R GARCiA
LOPEZ, J. MACDONALD, P. THEJLL, A. FERRIZ-MAS, RA. SAF
FER and V. ELKIN / Hot Subdwarfs: Magnetic, Oscillatory and other
Physical Properties 269
R NOWAKOWSKI and W. DZIEMBOWSKI / Nonlinearity of Nonradial
Modes in Evolved Stars 273
4. SUMMARY
J. CHRISTENSEN-DALSGAARD / Summary: Problems, Connections and
Expectations 277
5. POSTERS (CDROM)
5.1 Present Observational Status: Stars Near and In the Main Sequence
R. ALONSO, J.A. BELMONTE, T. BROWN, R. GARRIDO and E. MICHEL
/ STARE Observations of Potential COROT Fields P295
L.A. BALONA, C.D. LANEY and W. ZIMA / Spectroscopy of roAp Stars P299
TR. BEDDING, RP. BUTLER, e. McCARTHY, H. KJELDSEN,
G.W. MARCY, SJ. O'TOOLE, e.G. TINNEY and J. WRIGHT / Os-
cillations in ot Cen A Observed with UCLES at the AAT P303
F. BOUCHY and F. CARRIER / Prospects in Doppler Ground-Based Astero-
seismology P307
F. CARRIER, F. BOUCHY and P. EGGENBERGER / p-Mode Observations
on the KO IV Star <5 Eridani P311
F. CARRIER, F. BOUCHY and P. EGGENBERGER / New Seismological
Results on the GO IV rJ Bootis P315
V. COSTA, A. ROLLAND, P. LOPEZ DE COCA, I. OLIVARES and
J.M. GARCIA-PELAYO I Simultaneous uvby Photometry of the 8 Scuti
Star E: Cepphei P319
J.-Y. HU, J.-J. WANG, S.-N. ZHANG and J. GUO I SVOM-A Proposal for
a Micro-Satellite Used as Space-Based Multi-Band Variable Objects
Monitor P323
S. JANKOV, P. MATHIAS, C. AERTS, P. DE CAT and A. DOMICIANO DE
SOUZA I Time Variability of NRP Modes Along Orbital Phase in E: Per P327
E. KAMBE, B. SATO, Y. TAKEDA, H. IZUMIURA, S. MASUDA and
H. ANDO I Solar-Type Oscillations in Procyon: Test Observations with
the Iodine Cell and the HIgh Dispersion Echelle Spectrograph (HIDES) P331
S.-L. KIM, H. JIN, S.-G. KWON, c.-U. LEE, J.-H. YOUN and H. LEE I
Photometric Study of ROTSE-I 8 Scuti Type Stars P335
G. KOPACKI, M. JERZYKIEWICZ, J. MOLENDA-ZAKOWICZ and
Z. KOLACZKOWSKII Variable Stars in NGC 2169 from CCD Photometry P339
J. KRZESINSKI, S. KLEINMAN and A. NITTA I The Sloan Digital Sky
Survey: A Million Redshifts Pulsators P343
J.D. LANDSTREET, O. KOCHUKHOV, F. KUPKA, T. RYABCHIKOVA and
W. WEISS I Observations of Rapid Radial Velocity Variations of Spec-
tral Lines in Rapidly Oscillating Ap (roAp) Stars P347
H. LEHMANN and D.E. MKRTICHIAN / RZ Cas: First Spectroscopic Detec-
tion of Short-Term Pulsations in an Algol System P351
P. LOPEZ DE COCA, S.-L. KIM, M.A. HOBART, A. ROLLAND, H. LEE,
J.M. GARCIA-PELAYO and S. CHO I Multiperiodicity of 21 Mon P355
P. MATHIAS, E. CHAPELLIER, J.-M. LE CONTEL, J.-P. SAREYAN,
R. GARRIDO, E. RODRIGUEZ, E. PORETTI, A. ARELLANO FERRO,
L. ALVAREZ, L. PARRAO L. EYER, C. AERTS, W. WEISS and
A. ZHOU I Multisite Multitechnique Monitoring of a Large Sample
of y Doradus Candidates P359
J. MOLENDA-ZAKOWICZ I Multiperiodicity of Be and Bn Stars P363
B. MOSSER and J.-P. MAILLARD I Asteroseismology with a Fourier Trans-
form Seismometer P367
A. PICCIONI, C. BARTOLINI, S. BERNABEI, I. BRUNI, A. GUARNIERI,
F. GIOVANNELLI, L. SABAU-GRAZIATI and R. SILVOTTI I BD
+220 1268: a Probable 8 Scuti Star P371
A. PIGULSKI and Z. KOLACZKOWSKI I Discovery of f3 Cephei Stars in the
Magellanic Clouds P375
P. REEGEN I The 8 Scuti Star HR 6290 High-Precision Robotic Photometry P379
A. RETTER, T.R. BEDDING, D. BUZASI and H. KJELDSEN I Evidence for
Solar Like Oscillations in Arcturus (a Boo) P383
F. RODLER, M. BREGER, W. ZIMA, K.M. BISCHOF, V. ANTOCI, G. HAND-
LER, A.A. PAMYATNYKH, P. REEGEN, D. LORENZ, B. STEIN-
INGER and R. GARRIDO I Recent Work of the Delta Scuti Network P387
E. RODRIGUEZ, V. COSTA and MJ. LOPEZ-GONZALEZ, A.Y. ZHOU,
J.M. GARCIA, J.Y. WEI and Y. FAN / SAO 32177: a New Multiperi-
odic y Dor Variable P391
E. RODRIGUEZ, G. HANDLER, V. COSTA and J.M. GARCIA / HD 205: a
New Multiperiodic 8 Sct Variable with a Very Complex Spectrum P393
A. ROLLAND, P.J. AMADO, M.A. HOBART, V. COSTA, P. LOPEZ DE
COCA and E. RODRIGUEZ / Stromgren Photometry of the 8 Scuti
Star 21 Vul: 1995 and 1999 P397
J. TELTING, K. UYTTERHOEVEN and L ILYIN / A Survey for Line-Profile
Variability in Early B Type Main-Sequence Stars P401
S. TURCOTTE, C. AERTS and P. KNOGLINGER / Searching for Line Profile
Variability in HgMn Stars P405
K. UYTTERHOEVEN, J.H. TELTING and C. AERTS / Analysis of the Fre-
quency Spectrum of the Spectroscopic Binary f3 Cephei Star A Scorpii P409
5.2 Present Observational Status: Away from the Main Sequence
M. BILLERES and G. FONTAINE / Search for EC 14026 Pulsators: Results
of a Survey in the Northern Hemisphere P413
Z.E. DIND, T.R. BEDDING, S.J. O'TOOLE and S.D. KAWALER / Applying
Weights to Whole Earth Telescope Data: Results for Four Stars P417
J. HUBER, T.R. BEDDING and SJ. O'TOOLE / Colour Ratios of Pulsation
Amplitudes in Red Giants P421
M.J. IRELAND, P.G. TUTHILL, T.R. BEDDING, J.G. ROBERTSON and
A.P. JACOB / Multi-Wavelength Angular Diameters of Pulsating Red
Giants with MAPPIT P425
L.L. KISS, B. CSAK, A. DEREKAS, EJ. ALFARO, LB. BIRO and G.A.
BAKOS / A Surface-Brightness Analysis of Selected Northern Cepheids P429
L.L. KISS and K. SZATMARY / R Cygni: a Mira Star Pulsating Chaotically P433
A. NOELS, R. SCUFLAIRE, P. MAGAIN, G. PARMENTIER and A. THOUL
/ Variable Blue Stragglers and the EASE Scenario P437
SJ. O'TOOLE, T.R. BEDDING, H. KJELDSEN and M.A.S.G. J0RGENSEN
/ Time-Resolved Spectroscopy and Spectrophotometry of the Pulsating
sdB Star PG 1605+072 P441
S.K. RANDALL, LP. LOPES and A.E. LYNAS-GRAY / Pulsation Period
Variation in the Subdwarf B Star EC 20117-4014 P445
F.-X. SCHMIDER, 1. GAY, C. JACOB, E. FOSSAT, J.-c. VALTIER,
B. MOSSER, D. MEKARNIA, T. GUILLOT and J. PROVOST /
SYMPA: A Dedicated Instrument and a Network for Seismology of
Giant Planets P449
A. STANKOV, M. FRIDLUND and I. ILYIN / Spectroscopic Analysis ofBW
Vulpeculae P453
K. ZWINTZ and W.W. WEISS / Pulsating Pre-Main Sequence Stars in NGC
6383? P457
5.3 Asteroseismic Techniques
C. AERTS, J. CUYPERS, M.A. DUPRET, J. DE RIDDER, R SCUFLAIRE
and L. EYER I Photometric Mode Identification in the Two y Doradus
Stars HD12901 and HD 48501 P461
G. BERTHOMIEU and T. APPOURCHAUX, on behalf of the
COROT Seismology Working Group I Hare & Hound Exercise with
Simulated COROT Data P465
M. BRIQUET and C. AERTS I A New Version of the Moment Method, Op-
timized for Mode Identification in Multiperiodic Stars P469
T. KALLINGER, A KAISER, CH. STUETZ, W.W. WEISS, K. ZWINTZ and
L. BIGOT I MOST and COROT High Precision Photometry Simula-
tions of the roAp Star 10 AQUILAE P473
A MAZUMDAR and I. ROXBURGH I The Asteroseismic Diagram for .e =
0,1 p-Modes P477
M. PAPARO and L.G. BALAzs I Multivariante Analyses of Multicolour Pho-
tometry for Mode Identification P481
P.P. PIJPERS I Selecting Asteroseismic Targets P485
W. ZIMA, U. HEITER, P.L. COTTRELL, H. LEHMANN, P. MATHIAS,
E. PORETTI and M. BREGER I The 2002 DSN Campaign of FG Vir:
Mode Identification by High Resolution Spectroscopy - Preliminary
Results P489
5.4 Asteroseismic Constraints on Stellar Structure and Evolution
C. AERTS, H. LEHMANN, R SCUFLAIRE, M.A DUPRET, M. BRIQUET,
J. DE RIDDER and A THOUL I Mode Identification and Seismic
Modelling of the f3 Cep Star EN (16)Lac P493
J. BALLOT, S. TURCK-CHIEZE, RA GARCIA and P.AP. NGHIEM I What
Can We Learn from Global Acoustic Modes About the Structure of the
Sun and a Centauri A? P497
P. BRASSARD and G. FONTAINE I Constraints on the 12(a, y)016 Reaction
Rate from White Dwarf Asteroseismology? P501
M.S. CUNHA I roAp Stars Versus noAp Stars: a Theoretical Approach P505
P. DEMARQUE, L.H. LI, FJ. ROBINSON, S. SOFIA and D.B. GUENTHER
I Three-Dimensional Radiative Hydrodynamical Simulations ofthe
Outer Layers of Sun-Like Stars P509
J. FERNANDES and MJ.P.P.G. MONTEIRO I Observational Constraints on
Models of f3 Hydri P513
G. FONTAINE, P. BRASSARD, S. CHARPINET, E.M. GREEN and
B. WILLEMS I On the Potential of Tidal Excitation of Gravity Modes
in Hot B Subdwarfs P5I7
L. FOX-MACHADO, P. PEREZ HERNANDEZ, J.-C. SUAREZ and
E. MICHEL I Searching for Mode Identification in the .5 Scuti Stars of
the Pleiades Cluster P521
J. KUBAT and J. KRTICKA / Instability Caused by a Multicomponent Nature
of Radiatively-Driven Stellar Winds P525
W. LOFFLER / g-Mode Pulsations in Doradus Stars: The Frozen-Flux Ap-
proximation and the Conservation of Energy P529
T.S. METCALFE and G. HANDLER / The 12C(a, y)160 Nuclear Reaction
Rate from Asteroseismology of the DBV White Dwarf CBS 114 P533
A. MIGLIO, J. CHRISTENSEN-DALSGAARD, M.P. DI MAURO, M.J.P.F.G.
MONTEIRO and MJ. THOMPSON / Seismological Analysis of the
Helium Ionization Zones in Low- and Moderate-Mass Stars P537
P. MITTERMAYER and W.W. WEISS / Atmospheric Parameters and Abund-
ances of the 8 Scuti Star FG Virginis P54l
M.H. MONTGOMERY and D.O. GOUGH / On the Effect of a Starspot on the
Modes of Oscillation of a Toy Ap Star Model P545
A. MOYA, R. GARRIDO and M.A. DUPRET / Non-Adiabatic Pulsational
Observables in 8 Scuti and y Doradus Stars: a Comparison of Two
Different Numerical Codes P549
FJ.G. PINHEIRO, M. MARCONI, V. RIPEPI, D.F.M. FOLHA, F. PALLA
and M.J.P.F.G. MONTEIRO / Re-Visiting the Seismic Properties of the
PMS 8 Scuti Star V346 Ori P553
J. PROVOST, G. BERTHOMIEU, F. THEVENIN, P. MOREL, F. BOUCHY
and F. CARRIER / Revisited Calibration of a Cen Binary System P557
F. RINCON and M. RIEUTORD / Shear-Alfven Waves in Magnetic Stars: the
Spherical Shell Model P56l
M.R. TEMPLETON and S. BASU / Nonadiabatic Pulsations in Pre-Main Se-
quence 8 Scuti Stars P565
S. THEADO and S. VAUCLAIR / Rotation Induced Mixing and Diffusion in
Stellar Radiative Zones: 2D Simulation P569
S.E. THOMPSON and J.e. CLEMENS / The Inclination of G 185-32 P573