中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
SDSS J012119.10-001949.9: a very short period M dwarf contact binary from SDSS stripe 82

文献类型:期刊论文

作者Jiang LQ(江林巧)1,2,3; Qian SB(钱声帮)1,2,3; Zhang J(张嘉)1,2; Jiang LQ(江林巧); Qian SB(钱声帮); Zhang J(张嘉); Zhang J(张嘉)
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2015-12
卷号15期号:12页码:2237-2243
关键词binaries: eclipsing stars: individual (SDSS J012119.10-001949.9) techniques: photometric
ISSN号1674-4527
产权排序第一完成单位
通讯作者Jiang, LQ (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
英文摘要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.
WOS标题词Science & Technology ; Physical Sciences
学科主题Astronomy & Astrophysics
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
关键词[WOS]STAR LIGHT CURVES ; LOW-MASS STARS ; ECLIPSING BINARIES ; VELOCITY CURVES ; LIMIT ; J001641-000925 ; CANDIDATES ; EVOLUTION ; SYSTEM
收录类别SCI
原文出处http://iopscience.iop.org/article/10.1088/1674-4527/15/12/011/meta
语种英语
WOS记录号WOS:000367563300011
源URL[http://ir.ynao.ac.cn/handle/114a53/9394]  
专题云南天文台_双星与变星研究组
云南天文台_中国科学院天体结构与演化重点实验室
通讯作者Jiang LQ(江林巧)
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
推荐引用方式
GB/T 7714
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.,Qian SB.,...&Zhang J.(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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来源:云南天文台

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