Photometric study of the contact binary 07g-3-00820 at the period cut off
Gao, H. -Y.1; Li, K.1,2; Li, Q. -C.1; Ma, S.1; Li, K.(Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terresti, Weihai 264209, Peoples R China)
发表期刊NEW ASTRONOMY
2017-10-01
卷号56页码:10-13
DOI10.1016/j.newast.2017.04.008
收录类别SCI
关键词Stars: Binaries: Close Stars: Binaries: Eclipsing Stars: Individual (07g-3-00820)
摘要07g-3-00820 is a K-type contact binary system with a period of 0.2269551 days. This extremely short period makes this system a rare target whose period is close to the empirical limit (0.22 days). R-c and I-c light curves of this binary were obtained using the 1.0 m reflecting telescope at Weihai Observatory of Shandong University. A high mass ratio of q = 1.300 +/- 0.006 and a low contact degree off = 5% +/- 1.5% were determined from a photometric study using the Wilson-Devinney method. The following parameters of this W-subtype shallow contact system were derived: M-1 = 0.621 +/- 0.072M(circle dot), M-2 = 0.807 +/- 0.093M(circle dot), R-1 = 0.634 +/- 0.036R(circle dot), R-2 = 0.710 +/- 0.037R(circle dot), L-1 = 0.270 +/- 0.037L(circle dot), and L-2 = 0.339 +/- 0.048L(circle dot). By analyzing the location of the two components on the mass-luminosity diagram, we provide a preliminary discussion on the properties and the state of evolution of this system. (C) 2017 Elsevier B.V. All rights reserved.
项目资助者National Natural Science Foundation of China (NSFC)(U1431105) ; Chinese Academy of Sciences (CAS)(U1431105) ; Natural Science Foundation of Shandong Province(ZR2014AQ019) ; Young Scholars Program of Shandong University, Weihai(2016WHWLJH07) ; Open Research Program of Key Laboratory for the Structure and Evolution of Celestial Objects(OP201303)
语种英语
学科领域天文学
文章类型Article
ISSN1384-1076
URL查看原文
WOS记录号WOS:000404504300003
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]URSAE MAJORIS SYSTEMS ; STAR LIGHT CURVES ; VELOCITY CURVES ; LIMIT ; EVOLUTION ; MASS
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/10139
专题中国科学院天体结构与演化重点实验室
通讯作者Li, K.(Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terresti, Weihai 264209, Peoples R China)
作者单位1.Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Sciences, Shandong University, Weihai, 264209, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, China
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Gao, H. -Y.,Li, K.,Li, Q. -C.,et al. Photometric study of the contact binary 07g-3-00820 at the period cut off[J]. NEW ASTRONOMY,2017,56:10-13.
APA Gao, H. -Y.,Li, K.,Li, Q. -C.,Ma, S.,&Li, K..(2017).Photometric study of the contact binary 07g-3-00820 at the period cut off.NEW ASTRONOMY,56,10-13.
MLA Gao, H. -Y.,et al."Photometric study of the contact binary 07g-3-00820 at the period cut off".NEW ASTRONOMY 56(2017):10-13.
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