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题名: G328: A small-amplitude red variable with a period near one day
作者: Yao, Bao-An; Shen, Chang-Jun; Zhang, Chun-Sheng; Hu, Han-Ming; Lin, Qing
刊名: CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
出版日期: 2006
卷号: 6, 期号:5, 页码:517-520
关键词: stars : variables ; stars : individual (G328)
学科分类: Astronomy & Astrophysics
文章类型: Article
英文摘要: G328 = A65 = L3314 (V = 13.83, B - V = 1.91) is a field star in the direction of the globular cluster M4. If we take E(B - V) 0.40, then its (B - V)(0) = 1.51, corresponding to a spectral type of K5III if it is a giant star; or of dM2 if it is a dwarf. Observations at both the MSSSO and Yunnan Observatory have shown that G328 is a new variable with peak to peak amplitude similar or equal to 0.05 mag in V. While it is not unusual for so red a star to be a variable, special attention must be paid to its short period of about one day. If the variability is due to pulsation, the spectral type and luminosity as well as effective temperature should be determined in order to compare it with Xiong's theory.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
收录类别: SCI
语种: 英语
WOS记录号: WOS:000241487800002
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/11204
Appears in Collections:熊大闰_期刊论文

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作者单位: 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
3.Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China

Recommended Citation:
Baoan Yao; Changjun Shen; ChunSheng Zhang.G328: A Small-Amplitude Red Variable with a Period Near One Day ,Chinese Journal of Astronomy and Astrophysics  ,2006,6(5):517-520
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