Radial Velocities of Six Early Type Evolved Stars |
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| Authors: | Pavel Mayer Magdy A Hanna Marek Wolf Drahos Chochol |
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| Institution: | (1) Astronomical Institute, Charles University V, Hole ovickach 2, 180 00 Praha 8, Czech Republic;(2) National Research Institute of Astronomy and Geophysics, Helwan, Cairo, Egypt;(3) Astron, Institute of the Slovak Academy of Sciences, 059 60 Tatranská Lomnicá, Slovak Republic |
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| Abstract: | Many early-type main sequence stars are known spectroscopic binaries, while early type spectroscopic binaries with evolved components are rather rare and well-determined masses are available only in some cases. For this reason a program to study stars with suspected variable velocity among early-type evolved stars has been initiated some time ago. In the present paper 54 coudé spectra for a sub-group formed of six early-type stars, namely HD 7902, HD 28446, HD 42087, HD 187983, HD 195592 and HD 208501 have been measured and the results of these plates have been presented. |
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