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Spectroscopic Observations of U Gem

Published online by Cambridge University Press:  14 August 2015

J. I. Smak
J. I. Smak*
Affiliation:
Institute of Astronomy, Polish Academy of Sciences, Warsaw, Poland

Abstract

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Radial velocities of U Gem have been measured from individual components of the emission lines of the Balmer series, Ca II K, and He 14471, originating in the gaseous disk and in the hot spot of this binary system. These new data give K1 ≅ 143 km s−1 and Vdisk sin i ≅ 530 km s−1. The resulting mass of the primary component is m1 = 1.1 ± 0.4 m⊙ and the mass-ratio m2/m1 = 0.6 ± 0.2. Radial velocities and intensities of the emission components originating in the hot spot are also discussed.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 73: Structure and Evolution of Close Binary Systems , 1976 , pp. 149 - 154
Copyright
Copyright © Reidel 1976 

References

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