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Title: A photometric study of an ew-Type binary system: GV Leo
Authors: Wichean Kriwattanawong
Panomporn Poojon
Authors: Wichean Kriwattanawong
Panomporn Poojon
Keywords: Earth and Planetary Sciences;Physics and Astronomy
Issue Date: 1-Nov-2013
Abstract: A photometric study of a contact binary system, GV Leo is presented. New observationswere done using the BVR filter bands.We find that a revised orbital period is 0.26673171d and the orbital period of this system is decreasing at a rate of dP/dt = -4.95 × 10-7 d yr-1. The photometric solutions are fairly well fitted at a mass ratio of q = 0.1879, with a fillout factor of f = 17.74%. The results indicate that there exists mass transfer from the moremassive component to the less massive one at a rate of relative mass exchange, ṁ1/m = -1.09×10-7 yr-1. It is possible that this weakcontact system, that shows a decreasing orbital period, may undergo contraction of the inner and outer critical Roche lobes and evolve into a deep-contact binary.
ISSN: 16744527
Appears in Collections:CMUL: Journal Articles

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