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Photometric Study of the W Uma-Type Eclipsing Binary System GSC 4832.400

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Abstract

We present a photometric analysis of the eclipsing binary systemGSC4832.400 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 ± 0.000002days. 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 over contact systemsatis factorily reproduced the observed light curve.

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  1. Departamento de Física, Facultad de Ciencias, Universidad de Extremadura, Av. de Elvas s/n, 06071, Badajoz, Spain; E-mail

    M. Jurado Vargas & P. Merchán BenÍtez

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  1. M. Jurado Vargas
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  2. P. Merchán BenÍtez
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Jurado Vargas, M., Merchán BenÍtez, P. Photometric Study of the W Uma-Type Eclipsing Binary System GSC 4832.400. Astrophysics and Space Science 288, 237–244 (2003). https://doi.org/10.1023/B:ASTR.0000006038.03413.31

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  • DOI: https://doi.org/10.1023/B:ASTR.0000006038.03413.31

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