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Spectroscopic Binaries among a Complete Sample of Hipparcos M Giants

Published online by Cambridge University Press:  22 February 2018

A. Jorissen ,
B. Famaey ,
M. Dedecker ,
D. Pourbaix ,
M. Mayor  and
S. Udry
A. Jorissen
Affiliation:
Institut d' Astronomie et d'Astrophysique, Université Libre de Bruxelles, Belgium (dedecker,bfamaey,ajorisse,pourbaix@astro.ulb.ac.be) Research Associate FNRS, Belgium
B. Famaey
Affiliation:
Institut d' Astronomie et d'Astrophysique, Université Libre de Bruxelles, Belgium (dedecker,bfamaey,ajorisse,pourbaix@astro.ulb.ac.be) Boursier FRIA, Belgium
M. Dedecker
Affiliation:
Institut d' Astronomie et d'Astrophysique, Université Libre de Bruxelles, Belgium (dedecker,bfamaey,ajorisse,pourbaix@astro.ulb.ac.be)
D. Pourbaix
Affiliation:
Institut d' Astronomie et d'Astrophysique, Université Libre de Bruxelles, Belgium (dedecker,bfamaey,ajorisse,pourbaix@astro.ulb.ac.be) Research Associate FNRS, Belgium
M. Mayor
Affiliation:
Observatoire de Genève, Switzerland (michel.mayor,stephane.udry@obs.unige.ch.)
S. Udry
Affiliation:
Observatoire de Genève, Switzerland (michel.mayor,stephane.udry@obs.unige.ch.)

Abstract

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We present the first eccentricity-period diagram for binaries among nearby field M giants, where an observed frequency of at least 8% of spectroscopic binaries is found.

Resumen

Resumen

Presentamos el primer diagrama período-excentricidad para binarias entre las estrellas gigantes M de campo; encontramos una frecuencia de binarias espectroscópicas de por lo menos 8%.

Keywords

BinariesSpectroscopic — StarsLate — Type — StarsStatistics
Type
Observational properties and Statistics of Binary Stars in the Field
Information
International Astronomical Union Colloquium , Volume 191: The Environment and Evolution of Double and Multiple Stars , August 2004 , pp. 71 - 72
Copyright
Copyright © Instituto de Astronomia – Mexico 2004

References

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