Variable star status of two stars: V204 and I-I-39 in M3
文献类型:期刊论文
作者 | Bao-An Yao |
刊名 | CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
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出版日期 | 2007 |
卷号 | 7期号:6页码:771-776 |
关键词 | globular cluster stars : variables stars : individual (V204 and I-I-39) |
英文摘要 | The star I-I-42 (=vZ1390), a cluster member in M3, located near the red edge of the instability strip of the horizontal branch, was discovered by Roberts and Sandage as a low amplitude variable, it was designated as V204 in the "second catalogue of variable stars in globular clusters", but its coordinates given in all versions of this catalogue are wrong since 1955. We argue that V204 is indeed a low amplitude HB variable star, located near to the red edge of the instability strip, with a period of 0.74785(d) and an amplitude of about 0.04 mag in V. We also find that the red cluster member star I-I-39 is a low amplitude variable with a period of 1.16(d) and amplitude of about 0.03 mag in V which might be pulsating at the second overtone. |
WOS标题词 | Science & Technology ; Physical Sciences |
学科主题 | 星系与宇宙学研究中心 |
类目[WOS] | Astronomy & Astrophysics |
研究领域[WOS] | Astronomy & Astrophysics |
关键词[WOS] | GLOBULAR-CLUSTER M3 ; RR LYRAE STARS ; PHOTOMETRY ; AGE |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000251938500004 |
公开日期 | 2010-11-08 |
源URL | [http://119.78.226.72//handle/331011/11750] ![]() |
专题 | 上海天文台_星系宇宙学重点实验室 |
作者单位 | Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China |
推荐引用方式 GB/T 7714 | Bao-An Yao. Variable star status of two stars: V204 and I-I-39 in M3[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2007,7(6):771-776. |
APA | Bao-An Yao.(2007).Variable star status of two stars: V204 and I-I-39 in M3.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,7(6),771-776. |
MLA | Bao-An Yao."Variable star status of two stars: V204 and I-I-39 in M3".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 7.6(2007):771-776. |
入库方式: OAI收割
来源:上海天文台
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