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Tidal Circularization Among the Close Binaries in the Halo

Published online by Cambridge University Press:  07 August 2017

Guillermo Torres ,
David W. Latham ,
Tsevi Mazeh ,
Bruce W. Carney ,
Robert P. Stefanik ,
Robert J. Davis  and
John B. Laird
Guillermo Torres
Affiliation:
Harvard-Smithsonian Center for Astrophysics and Córdoba Observatory, National University of Córdoba Laprida 854, 5000 Córdoba, Argentina
David W. Latham
Affiliation:
Harvard-Smithsonian Center for Astrophysics 60 Garden Street, Cambridge, Massachusetts 02138, U.S.A.
Tsevi Mazeh
Affiliation:
School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Science Tel Aviv University, Tel Aviv 69978, Israel
Bruce W. Carney
Affiliation:
Department of Physics and Astronomy, University of North Carolina Chapel Hill, North Carolina 27599–3255, U.S.A.
Robert P. Stefanik
Affiliation:
Harvard-Smithsonian Center for Astrophysics 60 Garden Street, Cambridge, Massachusetts 02138, U.S.A.
Robert J. Davis
Affiliation:
Harvard-Smithsonian Center for Astrophysics 60 Garden Street, Cambridge, Massachusetts 02138, U.S.A.
John B. Laird
Affiliation:
Department of Physics and Astronomy, Bowling Green State University Bowling Green, Ohio 43403, U.S.A.

Abstract

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For a sample of halo binaries, we find that the transition between circular and eccentric orbits occurs at a period of at least 18.7 days. This is consistent with the Goldman & Mazeh theory of tidal circularization on the main sequence.

Type
Oral and Contributed Papers
Information
Symposium - International Astronomical Union , Volume 151: Evolutionary Processes in Interacting Binary Stars , 1992 , pp. 491 - 495
Copyright
Copyright © Kluwer 1992 

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