A new H-alpha survey of chromospherically active binaries .2.

被引：0
|
作者：
Liu, XF [1 ]
Huang, H [1 ]
Zhu, WB [1 ]
机构：
[1] CHINESE ACAD SCI,JOINT LAB OPT ASTRON,BEIJING 100864,PEOPLES R CHINA
来源：
ASTROPHYSICS AND SPACE SCIENCE | 1997年 / 246卷 / 01期
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D O I：
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have obtained CCD spectra for 30 chromospherically active binaries using the 2.16 m telescope at Beijing Observatory in 1995. Our purpose was to search for the presence of H-alpha emission which is characteristic of stars with extreme levels of chromospheric activity. Spectra of V711 Tau, V471 Tau, HD 12545 and V833 Tau presented H alpha emission above the continuum in the different degree. The H alpha behavior of the other observed 26 active binaries, which were unknown in CABS (1993), has been discovered in this paper. The H alpha profiles of the most among 26 systems are partially filled-in by chromospheric emission. The H alpha profiles of a few systems show a pure absorption line. The results are given in Table I.
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页码：39 / 50
页数：12
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