Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5487805 | New Astronomy | 2017 | 4 Pages |
Abstract
A CCD photometric study is presented for the eclipsing binary system 2MASS J20004638 +â0547475. Observations of the system were obtained in the V, R and I colours with the 2Kx2K CCD attached to 1.88 m Kottamia Optical Telescope. New times of light minimum and new ephemeris were obtained. The V, R and I light curves were analyzed using the PHOEBE 0.31 program to determine geometrical and physical parameters of the system. The results show that 2MASS J20004638 +â0547475, is A-Type WUMa and is an overcontact binary with high fill-out factor =â69%. The current evolutionary status of the system indicates that the primary component lies very close to the main sequence while the secondary is evolved. The asymmetric maxima were studied and a modeling of the hot spot parameters is given.
Keywords
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Physical Sciences and Engineering
Physics and Astronomy
Astronomy and Astrophysics
Authors
M.S. Darwish, A. Shokry, S.M. Saad, M.A. El-Sadek, A. Essam, M. Ismail,