Photometric Solutions of W UMa Type Stars: GSC2576-0319 and GSC2584-1731

Details Photometric Solutions of W UMa Type Stars: GSC2576-0319 and GSC2584-1731 Photometric Solutions of W UMa Type Stars: GSC2576-0319 and GSC2584-1731

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006jass...23..311l&link_type=abstract

Journal of Astronomy and Space Sciences. Vol. 23, no. 4, 311-318

Astronomy and Astrophysics

Astronomy

Contact Binary, Gsc2576-0319, Gsc2584-1731, Photometry, Spots

Scientific paper

High-precision photometric observations were performed in BVI bandpasses using 1m robotic telescope at Mt. Lemmon Observatory for two binary stars, which are reclassified as W UMa-type systems from ROTSE(Robotic Optical Transient Search Experiment) follow-up observations and show peculiar light variations. In order to analyze W UMa-type eclipsing binaries systematically, the light curve analysis script using 2005 version of Wilson-Devinney binary code is constructed. The orbital inclinations of GSC2584-1731 and GSC2576-0319 are 43.^circ5 and 57.^circ6 from light-curve analysis, respectively. Spot model is applied to explain the asymmetric light curve for GSC2584-1731 and the spot parameters are derived.

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