Reference : Photospheric Abundance Peculiarities in RS CVn Binaries
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
Photospheric Abundance Peculiarities in RS CVn Binaries
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]
Astrophysics & Space Science
Springer Science & Business Media B.V.
Yes (verified by ORBi)
The Netherlands
[en] fundamental parameters ; abundances ; acctivity ; formation
[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.

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