A new seismic analysis of Alpha Centauri

Thoul, Anne; Scuflaire, Richard; Noels-Grötsch, Arlette; Vatovez, Benjamin; Briquet, Maryline; Dupret, Marc-Antoine; Montalban Iglesias, Josefa

doi:10.1051/0004-6361:20030244

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A new seismic analysis of Alpha Centauri

Thoul, Anne; Scuflaire, Richard; Noels-Grötsch, Arlette et al.

2003 • In Astronomy and Astrophysics, 402 (1), p. 293-297

Peer Reviewed verified by ORBi

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https://hdl.handle.net/2268/76854

DOI
10.1051/0004-6361:20030244

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Keywords :

stars: binaries: visual; stars: individual: alpha Cen; stars: oscillations; stars: evolution

Abstract :

[en] Models of alpha Cen A & B have been computed using the masses determined by Pourbaix et al. (\cite{Po2002}) and the data derived from the spectroscopic analysis of Neuforge & Magain (\cite{Ne1997}). The seismological data obtained by Bouchy & Carrier (\cite{Bo2001}, \cite{Bo2002}) do help improve our knowledge of the evolutionary status of the system. All the constraints are satisfied with a model which gives an age of about 6 Gyr for the binary.

Disciplines :

Space science, astronomy & astrophysics

Author, co-author :

Thoul, Anne ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Evol. et stabilité des étoiles et des amas d'étoiles (ESEA)

Scuflaire, Richard ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Evol. et stabilité des étoiles et des amas d'étoiles (ESEA)

Noels-Grötsch, Arlette ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)

Vatovez, Benjamin ; Université de Liège - ULiège > Département de physique > Physique générale (caract. opt. et magnétique des matériaux)

Briquet, Maryline ; Institute of Astrophysics and Geophysics, University of Liège, 17 allée du 6-Août, Sart Tilman (Bât B5c), 4000 Liège 1, Belgium

Dupret, Marc-Antoine ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique

Montalban Iglesias, Josefa ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie

Language :

English

Title :

A new seismic analysis of Alpha Centauri

Publication date :

01 April 2003

Journal title :

Astronomy and Astrophysics

ISSN :

0004-6361

eISSN :

1432-0746

Publisher :

EDP Sciences, Les Ulis, France

Volume :

402

Issue :

Pages :

293-297

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://adsabs.harvard.edu/abs/2003A%26A...402..293T

Funders :

F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]

Commentary :

http://de.arxiv.org/abs/astro-ph/0303467

Available on ORBi :

since 24 November 2010

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