Article (Scientific journals)
Abundance analysis of targets for the COROT/MONS asteroseismology missions. II. Abundance analysis of the COROT main targets
Bruntt, H.; Bikmaev, I. F.; Catala, C. et al.
2004In Astronomy and Astrophysics, 425, p. 683-695
Peer Reviewed verified by ORBi
 

Files


Full Text
aa0464-04.pdf
Publisher postprint (637.02 kB)
Download

The authors thank EDP Sciences for their deposit authorization


All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
stars: abundances; stars: fundamental parameters
Abstract :
[en] One of the goals of the ground-based support program for the COROT and MONS/RÖMER satellite missions is to characterize suitable target stars for the part of the missions dedicated to asteroseismology. We present the detailed abundance analysis of nine of the potential COROT main targets using the semi-automatic software VWA. For two additional COROT targets we could not perform the analysis due to the high rotational velocity of these stars. For five stars with low rotational velocity we have also performed abundance analysis by a classical equivalent width method in order to test the reliability of the VWA software. The agreement between the different methods is good. We find that it is necessary to measure abundances extracted from each line relative to the abundances found from a spectrum of the Sun in order to remove systematic errors. We have constrained the global atmospheric parameters T[SUB]eff[/SUB], log g, and [Fe/H] to within 70-100 K, 0.1-0.2 dex, and 0.1 dex for five stars which are slow rotators (v sin i < 15 km s[SUP]-1[/SUP]). For most of the stars we find good agreement with the parameters found from line depth ratios, H alpha lines, Strömgren indices, previous spectroscopic studies, and also log g determined from the HIPPARCOS parallaxes. For the fast rotators (v sin i > 60 km s[SUP]-1[/SUP]) it is not possible to constrain the atmospheric parameters. Based on observations obtained with the 193 cm telescope at Observatoire de Haute Provence, France.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Bruntt, H.;  Department of Physics and Astronomy, Aarhus University, Bygn. 520, 8000 Aarhus C, Denmark
Bikmaev, I. F.;  Department of Astronomy, Kazan State University, Kremlevskaya 18, 420008 Kazan, Russia
Catala, C.;  Observatoire de Paris, LESIA, France
Solano, E.;  Laboratorio de Astrofísica Espacial y Física Fundamental, PO Box 50727, 28080 Madrid, Spain
Gillon, Michaël  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image
Magain, Pierre  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image
Van't Veer-Menneret, C.;  Observatoire de Paris, GEPI, France
Stütz, C.;  Institut für Astronomie, Universität Wien, Türkenschanzstrasse 17, 1180 Wien, Austria
Weiss, W. W.;  Institut für Astronomie, Universität Wien, Türkenschanzstrasse 17, 1180 Wien, Austria
Ballereau, D.;  Observatoire de Paris, GEPI, France
Bouret, J. C.;  Laboratoire d'Astrophysique de Marseille, France
Charpinet, Stéphane;  Laboratoire d'Astrophysique de l'OMP, CNRS UMR 5572, Observatoire Midi-Pyrénées, 14, avenue Edouard Belin, 31400 Toulouse, France
Hua, T.;  Laboratoire d'Astrophysique de Marseille, France
Katz, D.;  Observatoire de Paris, GEPI, France
Lignières, F.;  Laboratoire d'Astrophysique de l'OMP, CNRS UMR 5572, Observatoire Midi-Pyrénées, 14, avenue Edouard Belin, 31400 Toulouse, France
Lueftinger, T.;  Institut für Astronomie, Universität Wien, Türkenschanzstrasse 17, 1180 Wien, Austria
More authors (6 more) Less
Language :
English
Title :
Abundance analysis of targets for the COROT/MONS asteroseismology missions. II. Abundance analysis of the COROT main targets
Publication date :
01 October 2004
Journal title :
Astronomy and Astrophysics
ISSN :
0004-6361
eISSN :
1432-0746
Publisher :
EDP Sciences, Les Ulis, France
Volume :
425
Pages :
683-695
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
http://de.arxiv.org/abs/astro-ph/0403464
Available on ORBi :
since 30 October 2009

Statistics


Number of views
56 (4 by ULiège)
Number of downloads
65 (2 by ULiège)

Scopus citations®
 
56
Scopus citations®
without self-citations
24
OpenCitations
 
55

Bibliography


Similar publications



Contact ORBi