The first photometric analyses of four new discovered EW-type eclipsing binaries: GSC 1848-1264, GSC 0804-0118, GSC 0619-0232 and GSC 2936-0478 | |
Yang YG(杨远贵)1,2,4; Qian SB(钱声帮)1,2; Gonzalez-Rojas, DJ3; Yuan JZ(袁金照)1,2,4; Yang, YG (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China. | |
发表期刊 | ASTROPHYSICS AND SPACE SCIENCE |
2005-12 | |
卷号 | 300期号:4页码:337-356 |
DOI | 10.1007/s10509-005-4161-4 |
产权排序 | 第1完成单位 |
收录类别 | SCI |
关键词 | Stars Binaries Stars Photometric Solution Close Binaries Stars Eclipsing Individuals (Gsc 1848-1264 Gsc 0804-0118 Gsc 0619-0232 And Gsc 2936-0478) |
摘要 | Photometric solutions of four new discovered W UMa-type binaries were carried out for the first time by using the 2003 version of the W-D program. It is discovered that all of the four systems are over-contact binaries. Two binaries, GSC 0804-0118 and GSC 2936-0478, are of A-subtype, while two other binaries, GSC 1848-1264 and GSC 0619-0232, are of W-subtype. From our solutions, the fundamental orbital and physical parameters were determined. For GSC 0619-0232 and GSC 2936-0478, the asymmetries of the light curves (i.e., the O'Connell effect) were explained by the presence of dark spots on the more massive components. Our photometric results reveal that GSC 0619-0232 is an important and interesting system. It is a W-type over-contact binary with a low mass ratio of q = 0.100 and a high over-contact degree of f = 93.4%, which suggests that GSC 0619-0232 may be evolved into a single rapid-rotating star. |
语种 | 英语 |
学科领域 | Astronomy & Astrophysics |
文章类型 | Article |
ISSN | 0004-640X |
URL | 查看原文 |
归档日期 | 2005-12-05 |
WOS记录号 | WOS:000233735200004 |
WOS研究方向 | Astronomy & Astrophysics |
WOS类目 | Astronomy & Astrophysics |
关键词[WOS] | OVERCONTACT BINARY ; URSAE MAJORIS ; LIGHT CURVES ; SYSTEM |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ynao.ac.cn/handle/114a53/5773 |
专题 | 双星与变星研究组 |
通讯作者 | Yang, YG (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China. |
作者单位 | 1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, 650011, Kunming, P.R. China 2.United Laboratory of Optical Astronomy, CAS (ULOAC), Beijing, P.R. China 3.Grupo Astronmico Silos, C/. Balsa 1, 50139, Torrecilla de Valmadrid, Zaragoza, Spain 4.Graduate School of Chinese Academy of Sciences, Beijing, P.R. China |
第一作者单位 | 中国科学院云南天文台 |
推荐引用方式 GB/T 7714 | Yang YG,Qian SB,Gonzalez-Rojas, DJ,et al. The first photometric analyses of four new discovered EW-type eclipsing binaries: GSC 1848-1264, GSC 0804-0118, GSC 0619-0232 and GSC 2936-0478[J]. ASTROPHYSICS AND SPACE SCIENCE,2005,300(4):337-356. |
APA | Yang YG,Qian SB,Gonzalez-Rojas, DJ,Yuan JZ,&Yang, YG .(2005).The first photometric analyses of four new discovered EW-type eclipsing binaries: GSC 1848-1264, GSC 0804-0118, GSC 0619-0232 and GSC 2936-0478.ASTROPHYSICS AND SPACE SCIENCE,300(4),337-356. |
MLA | Yang YG,et al."The first photometric analyses of four new discovered EW-type eclipsing binaries: GSC 1848-1264, GSC 0804-0118, GSC 0619-0232 and GSC 2936-0478".ASTROPHYSICS AND SPACE SCIENCE 300.4(2005):337-356. |
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