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Search for Tidally Driven Anomalies in the Atmospheres of Am Stars

Published online by Cambridge University Press:  23 April 2012

Ivanka Stateva ,
Ilian Iliev  and
Ján Budaj
Ivanka Stateva
Affiliation:
Institute of Astronomy with NAO, Bulgarian Academy of Sciences, Sofia 1784, Bulgaria email: stateva@astro.bas.bg
Ilian Iliev
Affiliation:
Institute of Astronomy with NAO, Bulgarian Academy of Sciences, Sofia 1784, Bulgaria email: stateva@astro.bas.bg
Ján Budaj
Affiliation:
Astronomical Institute, Slovak Academy of Sciences, 059 60 Tatranska Lomnica, The Slovak Republic
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Abstract

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We present here the systematic study of the chemical abundances of Am stars in order to search for possible abundance anomalies driven by tidal interaction in these binary systems. These stars were put into the context of Am binaries with 10 < Porb < 180 d and their abundance anomalies discussed in the context of possible tidal effects. There is clear anti-correlation of the Am peculiarities with v sin i. However, there seems to be also a correlation with eccentricity and orbital period.

Keywords

diffusionstars: abundancesstars: chemically peculiarstars: binaries: close
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S282: From Interacting Binaries to Exoplanets: Essential Modeling Tools , July 2011 , pp. 299 - 300
Copyright
Copyright © International Astronomical Union 2012

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