Wide-field variability survey of the globular cluster NGC 4833

被引：0
|
作者：
Kopacki, Grzegorz [1 ]
机构：
[1] Uniwersytet Wroclawski, Inst Astron, Kopernika 11, PL-51622 Wroclaw, Poland
来源：
PRECISION ASTEROSEISMOLOGY | 2014年 / 9卷 / 301期
关键词：
Galaxy: globular clusters: individual: NGC 4833; stars: Population II; stars: variables: RR Lyrae; stars: variables: SX Phoenicis;
D O I：
10.1017/S1743921313014956
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present preliminary results of the variability survey in the field of the globular cluster NGC 4833. We observed all 34 variable stars known in the cluster. In addition, we have found two new SX Phoenicis stars, one new RR Lyrae star, twelve new eclipsing systems mostly of the W Ursae Majoris type, nine new variable red giants, and ten new field-stars showing irregular variations. Properties of RR Lyrae stars indicate that NGC 4833 is an Oosterhoff's type II globular cluster.
引用
收藏
页码：441 / 442
页数：2
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