Article (Scientific journals)
Photospheric Abundance Peculiarities in RS CVn Binaries
Morel, Thierry; Micela, Giuseppina; Favata, Fabio
2006In Astrophysics and Space Science, 304, p. 185-187
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Keywords :
fundamental parameters; abundances; acctivity; formation
Abstract :
[en] We discuss the results of a LTE abundance study of 14 single-lined RS CVn binaries. Increasingly peculiar abundance ratios are observed for the cooler and more active stars in this sample (this is best illustrated in the case of oxygen). This may arise from the existence of large spot groups, departures from LTE much larger than anticipated and/or inadequacies in the Kurucz model atmospheres for these objects.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Morel, Thierry  ;  Katholieke Universiteit Leuven, Departement Natuurkunde en Sterrenkunde, Instituut voor Sterrenkunde, Celestijnenlaan 200D, 3001 Leuven, Belgium
Micela, Giuseppina;  Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Palermo G. S. Vaiana
Favata, Fabio;  Astrophysics Division â Research and Science Support Department of ESA, ESTEC
Language :
English
Title :
Photospheric Abundance Peculiarities in RS CVn Binaries
Publication date :
01 August 2006
Journal title :
Astrophysics and Space Science
ISSN :
0004-640X
eISSN :
1572-946X
Publisher :
Springer Science & Business Media B.V., Dordrecht, Netherlands
Volume :
304
Pages :
185-187
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 19 February 2010

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