Photometric Study of the Unusual Binary System VSX J052807.9+725606

Details Photometric Study of the Unusual Binary System VSX J052807.9+725606 Photometric Study of the Unusual Binary System VSX J052807.9+725606

2011-06-04

arxiv.org/abs/1106.0845v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

14 pages, 5 figures, 6 tables; "Astrophysics", submitted

Scientific paper

The results of three-color BVR photometric study of a recently discovered unusual binary system VSX J052807.9+725606 = USNO-B1.0 1629-0064825 are presented. This system is very similar to V361 Lyr, which was assumed to be unique. We confirmed a strong asymmetry of the phase curve and found the wavelength dependence of the amplitude. This is interpreted by a "direct impact" model with a "hot spot" in the atmosphere of the accreting component. Color temperatures are determined. Characteristics of the "hot spot" are estimated. We also calculated the new ephemeris for VSX J052807.9+725606.

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