New Hα survey of chromospherically active binaries

High-resolution high-SNR CCD spectra are presented of the H-alpha region for 14 chromospherically active binaries. The H-alpha emission and absorption equivalent widths, half-widths, and the radial velocities of these systems are determined. (AIAA)

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Bibliographic Details
Published in:Astrophysics and space science 1993-07, Vol.205 (2), p.359-380
Main Authors: Liu, Xuefu, Li, Aigen, Huang, He, Lu, Fangjun, Cha, Guangwei
Format: Article
Language:English
Subjects:
Astronomy
Earth, ocean, space
Exact sciences and technology
Stars
Stellar atmospheres (photospheres, chromospheres, coronae, magnetospheres). Radiative transfer. Opacity and line formation
Stellar characteristics and properties
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Description
Summary:High-resolution high-SNR CCD spectra are presented of the H-alpha region for 14 chromospherically active binaries. The H-alpha emission and absorption equivalent widths, half-widths, and the radial velocities of these systems are determined. (AIAA)
ISSN:0004-640X
1572-946X
DOI:10.1007/BF00658977