HIPPARCOS photometry of 24 variable massive stars (alpha Cygni variables)
HIPPARCOS photometry of 24 variable massive stars (alpha Cygni variables)
复制标题
HIPPARCOS 24 颗变大质量恒星（天鹅座阿尔法变星）的光度测量
DOI：
--
复制
发表时间：
1998
期刊：
影响因子：
--
通讯作者：
I. Zegelaar
中科院分区：
文献类型：
--
作者：
F. V. Leeuwen;A. M. Genderen;I. Zegelaar
本文描述了依巴谷卫星观测到的24颗天鹅座变星，即变星超巨星和超巨星的光度变化。选定的恒星中有3颗位于SMC，12颗位于LMC，其余9颗位于银河平面。其中四个是热S Dor{类型变量，或LBV（亮蓝色变量），两个可能是该类的成员。给出了所有恒星的光变曲线.对于包括一颗LBV在内的ve颗恒星，从依巴谷的光测数据中发现了这种变化.周期搜索的结果，并在相关时，折叠光变曲线显示。对双变量线性星历进行了修正。对于大多数程序星依巴谷星等（Hp）从UBV系统的V < 0：m 1。对于所有变量，给出了温度和Mbol。根据IRAS图给出了麦哲伦云天体的银河前景红化。
The photometric variability of 24 Cyg vari- ables, i.e. variable super{and hypergiants, observed by the Hipparcos satellite is described. Three of the selected stars are situated in the SMC, 12 in the LMC and the remain- ing 9 in the Galactic plane. Four of them are hot S Dor{ type variables, or LBVs (luminous blue variables) and two are possible members of this class. Light curves are pre- sented for all stars. For ve stars, among which one LBV, the variability was discovered from the Hipparcos photo- metric data. Results of period searches are presented and, when relevant, folded light curves are shown. The linear ephemeris of two variables was revised. For most of the program stars the Hipparcos magni- tude scale (Hp) diers from the V of the UBV system by < 0: m 1. For all variables temperatures and Mbol are given. Galactic foreground reddening for the objects in the Magellanic Clouds are given based on IRAS maps.