BV 690, A NEW BRIGHT TYPE-II CEPHEID

被引：4

作者：

SANWAL, NB

SARMA, MBK

机构：

[1] Centre of Advanced Study in Astronomy, Osmania University, Hyderabad

来源：

JOURNAL OF ASTROPHYSICS AND ASTRONOMY | 1991年 / 12卷 / 02期

关键词：

LIGHT CURVES; EPHEMERIS; TYPE-II; CEPHEID VARIABLE; INDIVIDUAL;

D O I：

10.1007/BF02709301

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

B and V observations of the suspected variable BV 690 = NSV 04298 are reported. The star shows light variations with a period of 1d.2400 and with amplitudes of 0m.27, 0m.36 and 0m.11 in V, B, and B - V respectively. The light curves show steeper rise than decline, and there is evidence for the presence of a bump in the descending branch around the phase of 0.35. From considerations of the period, spectral type, presence of the bump and high tangential velocity we conclude that BV 690 belongs to the BL Herculis class of Type II Cepheids.

引用

页码：119 / 131

页数：13