A photometric study of the contact binary AZ Virginis

Details A photometric study of the contact binary AZ Virginis A photometric study of the contact binary AZ Virginis

Feb 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007an....328..159l&link_type=abstract

Astronomische Nachrichten, Vol.328, Issue 2, p.159

Astronomy and Astrophysics

Astronomy

Binaries: Close, Binaries: Eclipsing, Stars: Individual (Az Vir)

Scientific paper

New light curves and photometric solutions of the contact binary AZ Vir are presented in this paper. The light curves appear to exhibit a typical O'Connell effect, with Maximum I being 0.021 mag (V) and 0.023 mag (B) brighter than Maximum II, respectively. From the observations, six times of minimum light were determined and from the present times of minimum light and those collected from the references, the light elements of the system were improved. The light curves were analyzed by means of the Wilson-Devinney program. The results suggest that AZ Vir is a W-subtype contact binary with a mass ratio of q = 0.623(2). The asymmetry of the light curves is explained by star spot models.

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