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On The Binary Nature of 89 Herculis

Published online by Cambridge University Press:  12 April 2016

A. Arellano Ferro
A. Arellano Ferro*
Affiliation:
Department of Astronomy, University of Toronto, and Instituto de Astronomía, Universidad Nacional Autónoma de México

Abstract

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The radial velocities of 89 Herculis (89 Her) between 1977 and 1981 show a clear periodicity of about 285 days. This periodic variation is interpreted as the orbital variation of 89 Her around an unseen companion. From the orbital elements no support is found for a low mass (M ~ 2Mʘ ) for 89 Her, but rather a high mass (13 < M/Mʘ < 24) is preferred.

Type
Part I. Fundamental Parameters
Information
International Astronomical Union Colloquium , Volume 82: Cepheids: Theory and Observations , 1985 , pp. 81 - 82
Copyright
Copyright © Cambridge University Press 1985

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