First photometric solution of a very short period contact binary below the period limit

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題名:	First photometric solution of a very short period contact binary below the period limit
作者:	陳文屏;Liu, L.;Chen, W. P.;Qian, S. B.;Chuang, R. J.;Jiang, L. Q.;Lin, C. S.;Hsiao, H. Y.
貢獻者:	理學院天文研究所
關鍵詞:	binaries: close;binaries: eclipsing;Binary stars;Binary systems (materials);Contact;Estimates;Luminosity;Photometry;Spots;Stars;stars: evolution;stars: individual (2MASS 02272637+1156494)
日期:	2015-03-01
上傳時間:	2026-04-21 14:33:53 (UTC+8)
出版者:	IOP Publishing Ltd.;The American Astronomical Society
摘要:	摘要： ABSTRACT The star 1SWASP J022727.03+115641.7 was reported as a contact binary with a period shorter than the empirical limit of such systems. Our study shows the star not to be variable. Instead, it is the nearby star, 2MASS 02272637+1156494, that exhibits variability. The BRI CCD light curves of 2MASS 02272637+1156494 show the system to be a moderate mass ratio ( ), and shallow contact ( ) W-type contact binary. The masses, radii, and luminosities of the binary components are, respectively, , , , , , and , with an estimated distance pc. These uncertainties mainly come from the errors of the colors used to estimate the temperature of the primary star. A dark spot was introduced on the massive component in the final solution. 其他題名： AJ 其他題名： Astron. J 出版者： The American Astronomical Society 出版日期： 2015-03-01 出處： The Astronomical journal, 2015-03, Vol.149 (3), p.111-6 資源來源： Institute of Physics Journals 版權： 2015. The American Astronomical Society. All rights reserved. 識別號： ISSN: 0004-6256 識別號： ISSN: 1538-3881 識別號： EISSN: 1538-3881 識別號： DOI: 10.1088/0004-6256/149/3/111
顯示於類別:	[天文研究所] 期刊論文

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