Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003ap%26ss.288..237j&link_type=abstract
Astrophysics and Space Science, v. 288, Issue 3, p. 237-244 (2003).
Astronomy and Astrophysics
Astrophysics
Scientific paper
We present a photometric analysis of the eclipsing binary system GSC4832.400 based on 732 photometric observations obtained on sixteen clear nights during 1999-2000 in the V-Johnson and yb-Strömgren filters. The observed times of the minima yielded a linear ephemeris showing that the system has a constant period of 0.313150 +/- 0.000002 days. The light curve corresponds to a circular orbit for the system and clearly shows that GSC4832.400 has the defining characteristics of a W UMa-type eclipsing binary. It also shows a small O'Connell effect, which could be due to the presence of a hot spot in the primary star. A preliminary photometric solution based on the assumption of an overcontact system satisfactorily reproduced the observed light curve.
Jurado Vargas M.
Merchan Benitez P.
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