CoRoT 102931335: a candidate γ Dor in an eclipsing binary

Details CoRoT 102931335: a candidate γ Dor in an eclipsing binary CoRoT 102931335: a candidate γ Dor in an eclipsing binary

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010ap%26ss.328...91d&link_type=abstract

Astrophysics and Space Science, Volume 328, Issue 1-2, pp. 91-96

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

We present an on-going study of CoRoT 102931335. Our preliminary results indicate that the target is an eclipsing binary system with an orbital period of 3.979d and a primary component pulsating in the frequency range 0.6-0.8 c/d. The results of a ground-based follow-up program provided four-colour Strömgren photometry and allowed us to infer the spectral class and the primary effective temperature. We devised and applied an iterative procedure to disentangle the effects of binarity from those of pulsations and could test that a detailed binary modelling is essential for the purpose. Our results suggest that the pulsating component of CoRoT 102931335 could be a γ Dor variable, a rare occurrence in an eclipsing system.

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