Variable stars in the globular cluster NGC 4590 (M68)

被引：4
作者：
Sariya, Devesh P. [1 ,2 ]
Lata, Sneh [1 ]
Yadav, R. K. S. [1 ]
机构：
[1] Aryabhatta Res Inst Observat Sci, Naini Tal 263002, India
[2] Pt Ravishankar Shukla Univ, Sch Studies Phys & Astrophys, Raipur 492010, Madhya Pradesh, India
来源：
NEW ASTRONOMY | 2014年 / 27卷
关键词：
Globular clusters; Stars; Variables; RR Lyrae; RR-LYRAE STARS; CCD PHOTOMETRY; SPACED DATA; SEARCH;
D O I：
10.1016/j.newast.2013.09.001
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present results of time series photometry to search for variable stars in the field of metal-poor globular cluster NGC 4590 (M68). Periods have been revised for 40 known variables and no significant changes were found. A considerable change in Blazhko effect for V25 has been detected. Among nine newly discovered variable candidates, 5 stars are of RRC Bailey type variables while 4 stars are unclassified. The variable stars V10, V21, V50 and V51 are found to be cluster members based on the radial velocity data taken from literature. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：56 / 62
页数：7
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