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arXiv 1409.2184astro-ph.SR
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发现W UMa型双星GSC 03553-00845

Discovery of a W UMa type binary GSC 03553-00845

D. -F. Guo, K. Li, S. -M. Hu, Y. -G. Jiang, D. -Y. Gao, X. Chen

摘要:

在对凌日系外行星的观测中,我们发现了一颗新的W UMa型双星GSC 03553-00845。利用山东大学威海天文台的1米望远镜进行了观测。测定完整的BVR光曲线。用W-D程序分析了光变曲线。测光结果表明,GSC 03553-00845是W亚型W UMa型二元体系,质量比q=2.904,是一个过接触二元体系,接触度f=29.5%,组分间温差小(ΔT=206 K,表明组分间热接触良好)。需要对GSC 03553-00845进行更多的观测,以分析光变曲线变化和轨道周期变化。

英文摘要:

When observing the transiting extrasolar planets, we discovered a new W UMa type binary GSC 03553-00845. Following observation was carried out using the 1m telescope at Weihai Observatory of Shandong University. Complete BVR light curves were determined. Using the W-D program, we analyzed the light curves. Photometric solution reveals that GSC 03553-00845 is a W-subtype W UMa type binary with a mass ratio of q=2.904, it is an overcontact binary system by a contact degree of f=29.5% with a small temperature difference between the components (ΔT=206 K indicating a good thermal contact between the components. More observation of GSC 03553-00845 is needed in order to analyze the light curve variation and orbital period change.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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