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Two extreme contact binary systems in the nearest globular cluster M4
Liu L(刘亮)1,2,3,4; Qian SB(钱声帮)1,2,3,4; Fernandez-Lajus, E5; Liu, L (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2011-08
Volume415Issue:2Pages:1509-1522
DOI10.1111/j.1365-2966.2011.18791.x
Contribution Rank第1完成单位
Indexed BySCI
KeywordBinaries: Eclipsing Blue Stragglers Stars: Evolution Stars: Individual: V47 Stars: Individual: V53
AbstractWe present the results of photometric solutions for two contact binaries in the nearby globular cluster M4. We estimate their physical parameters using the light-curve program of the Wilson-Devinney code. These systems have quite different mass ratios, which indicates that they did not form at the same time. V47 is an extreme mass-ratio system (q = 0.123 +/- 0.002) being dissimilar to the same kind of field contact binaries. V53 is a high mass-ratio (q = 1.230 +/- 0.004), deep-contact (f = 79.7 +/- 1.9 per cent) system. It is also a blue straggler.
Funding OrganizationChinese Natural Science Foundation [10878012, 10973037, 10903026] ; National Key Fundamental Research Project [2007CB815406] ; Yunnan Natural Science Foundation [2008CD157] ; West Light Foundation of the Chinese Academy of Sciences
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0035-8711
URL查看原文
Archive Date2012-01-23
WOS IDWOS:000293756300042
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordBLUE STRAGGLER STARS ; MASS-RATIO ; STELLAR EVOLUTION ; LIGHT CURVES ; DEEP ; PARAMETERS ; MODELS ; BOOTIS ; IV
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5853
Collection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
Corresponding AuthorLiu, L (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P O Box 110, 650011 Kunming, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 650011 Kunming, China
3.United Laboratory of Optical Astronomy, Chinese Academy of Sciences (ULOAC), 100012 Beijing, China
4.Graduate School of the CAS, Yuquan Road 19, Shijingshan Block, 100049 Beijing, China
5.Facultad de Ciencias Astronómicasy Geofísicas, Universidad Nacional de La Plata and Instituto de Astrofísica de La Plata (CCT La Plata – CONICET/UNLP), Paseo del Bosque s/n, 1900 La Plata, Argentina
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Liu L,Qian SB,Fernandez-Lajus, E,et al. Two extreme contact binary systems in the nearest globular cluster M4[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2011,415(2):1509-1522.
APA Liu L,Qian SB,Fernandez-Lajus, E,&Liu, L .(2011).Two extreme contact binary systems in the nearest globular cluster M4.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,415(2),1509-1522.
MLA Liu L,et al."Two extreme contact binary systems in the nearest globular cluster M4".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 415.2(2011):1509-1522.
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