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Herbig Ae/Be Visual Binaries

Published online by Cambridge University Press:  13 May 2016

Jérôme Bouvier  and
Patrice Corporon
Jérôme Bouvier
Affiliation:
Observatoire de Grenoble, Université J. Fourier, B.P. 53, 38041 Grenoble Cedex 9, France
Patrice Corporon
Affiliation:
Observatoire de Grenoble, Université J. Fourier, B.P. 53, 38041 Grenoble Cedex 9, France

Abstract

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We present the results of a high-angular resolution spectro-imaging survey of a sample of isolated Herbig Ae-Be (HAeBe) stars aimed at searching for close companions. The fraction of wide binaries is found to be significantly higher in HAeBe stars than in solar-mass field dwarfs, and suggests a companion star fraction possibly larger than 1. The spectral energy distribution of the primaries and secondaries is derived independently from multi-wavelength resolved photometry of the systems. It is found that young low-mass companions usually do not exhibit infrared excesses, which suggests that the lifetime of their circumstellar disk might have been shortened by the influence of the massive primary.

Type
V. Pre-Main Sequence Binary Populations
Information
Symposium - International Astronomical Union , Volume 200: The Formation of Binary Stars , 2001 , pp. 155 - 164
Copyright
Copyright © Astronomical Society of the Pacific 2001 

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