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Being rich helps – the case of the sdBV KIC 10670103

Published online by Cambridge University Press:  18 February 2014

Jurek Krzesinski  and
Szymon Bachulski
Jurek Krzesinski
Affiliation:
Pedagogical University of Cracow, ul. Podchorazych 2, 30-084 Cracow, Poland email: jk@astro.as.up.krakow.pl
Szymon Bachulski
Affiliation:
Pedagogical University of Cracow, ul. Podchorazych 2, 30-084 Cracow, Poland email: jk@astro.as.up.krakow.pl
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Abstract

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We present a study of KIC 10670103, a pulsating hot subdwarf in the Kepler field. By means of Fourier analysis, we investigate periodic signals associated with pulsations. Using asymptotic relationships and rotational multiplets we identify degrees of modes. The Fourier spectrum appears to be rich in l=1 and l=2 multiplets allowing derivation of a ~90-day rotation period of the star from rotational splittings. Comparing the identified gravity-mode period spacing pattern with theoretical models we show that KIC 10670103 has to be a thick-envelope sdBV.

Keywords

stars: subdwarfsoscillationsrotation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S301: Precision Asteroseismology , August 2013 , pp. 309 - 312
Copyright
Copyright © International Astronomical Union 2014 

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