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SDSS J012119.10-001949.9: a very short period M dwarf contact binary from SDSS stripe 82
Jiang LQ(江林巧)1,2,3; Qian SB(钱声帮)1,2,3; Zhang J(张嘉)1,2; Jiang, LQ (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊RESEARCH IN ASTRONOMY AND ASTROPHYSICS
2015-12
卷号15期号:12页码:2237-2243
DOI10.1088/1674-4527/15/12/011
产权排序第1完成单位
收录类别SCI
关键词Binaries: Eclipsing Stars: Individual (Sdss J012119.10-001949.9) Techniques: Photometric
摘要We present the first multicolor photometric observations of the short period low-mass eclipsing binary SDSS 3012119.10-001949.9. By using the 2013 version of the Wilson-Devinney code, the photometric solutions are derived. It is found that the system is in a contact configuration (f =- 18.9 +/- 6.0%) with a moderate mass ratio of 0.5 +/- 0.01. A third light contributing about 6.1 +/- 1.3% of the total luminosity in the V band was found, which may come from a cool tertiary component. The derived high orbital inclination (i = 83.9 degrees +/- 0.5 degrees) and the almost symmetric three light curves suggest that the determined parameters are reliable. Both the color class and spectral class of the system correspond to a spectral type of MO, which may indicate that SDSS J012119.10-001949.9 belongs to a very rare class of M dwarf contact binaries that are below the theoretical short period limit.
项目资助者National Natural Science Foundation of China(11133007,11325315) ; Strategic Priority Research Program "The Emergence of Cosmological Structure" of the Chinese Academy of Sciences(XDB09010202) ; Science Foundation of Yunnan Province(2012HC011)
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN1674-4527
URL查看原文
WOS记录号WOS:000367563300011
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]STAR LIGHT CURVES ; LOW-MASS STARS ; ECLIPSING BINARIES ; VELOCITY CURVES ; LIMIT ; J001641-000925 ; CANDIDATES ; EVOLUTION ; SYSTEM
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9394
专题双星与变星研究组
中国科学院天体结构与演化重点实验室
通讯作者Jiang, LQ (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
2.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China
3.University of Chinese Academy of Sciences, Beijing 100049, China
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Jiang LQ,Qian SB,Zhang J,et al. SDSS J012119.10-001949.9: a very short period M dwarf contact binary from SDSS stripe 82[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2015,15(12):2237-2243.
APA 江林巧,钱声帮,张嘉,&Jiang, LQ .(2015).SDSS J012119.10-001949.9: a very short period M dwarf contact binary from SDSS stripe 82.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,15(12),2237-2243.
MLA 江林巧,et al."SDSS J012119.10-001949.9: a very short period M dwarf contact binary from SDSS stripe 82".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 15.12(2015):2237-2243.
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