• Title/Summary/Keyword: GSC2584-1731

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PHOTOMETRIC SOLUTIONS OF W UMA TYPE STARS: GSC2576-0319 AND GSC2584-1731 (W UMa형 식쌍성 GSC2576-0319와 GSC2584-1731의 측광해)

  • Lee, Chung-Uk;Lee, Jae-Woo;Jin, Ho;Kim, Chun-Hwey
    • Journal of Astronomy and Space Sciences
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    • v.23 no.4
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    • pp.311-318
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    • 2006
  • High-precision photometric observations were performed in BVI bandpasses using Am 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 GSC2S84-1731 and GSC2576-0319 are $43.^{\circ}5\;and\;57.^{\circ}6$ from light-curve analysis, respectively. Spot model is applied to explain the asymmetric light curve for GSC2S84-1731 and the spot parameters are derived.