NIR survey of variable stars in the large magellanic cloud -: Pulsation at the tip of the first giant branch?

被引：0

作者：

Ita, Y ^{[1
]}

Tanabé, T ^{[1
]}

Nakada, Y ^{[1
]}

Matsunaga, N ^{[1
]}

Nakajima, Y ^{[1
]}

Nagashima, C ^{[1
]}

Nagayama, T ^{[1
]}

Kato, D ^{[1
]}

Nagata, T ^{[1
]}

Tamura, M ^{[1
]}

机构：

[1] Univ Tokyo, Sch Sci, Inst Astron, Tokyo 1810015, Japan

来源：

MASS-LOSING PULSATING STARS AND THEIR CIRCUMSTELLAR MATTER: OBSERVATIONS AND THEORY | 2003年 / 283卷

关键词：

LMC; AGB; RGB; variable star; survey;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The preliminary results of our ongoing NIR survey of the variable red giants in the Large Magellanic Cloud are presented. In the observed color-magnitude diagram (J - K-s K-s) and the stellar K-s magnitude distribution, the tip of the first giant branch (TRGB, K-s similar to 12.3 Nikolaev & Weinberg 2000) is clearly seen. Apart from the genuine AGB variables, we found many variable stars that populate just below the TRGB. From this result, we infer that most, if not all, of them are RGB variables.

引用

页码：217 / 218

页数：2

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