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Far-infrared Excesses in Classical Be Stars

Published online by Cambridge University Press:  12 April 2016

A.S. Miroshnichenko  and
K.S. Bjorkman
A.S. Miroshnichenko
Affiliation:
Ritter Observatory, University of Toledo, Dept. of Physics and Astronomy, Toledo, OH 43606, USA
K.S. Bjorkman
Affiliation:
Ritter Observatory, University of Toledo, Dept. of Physics and Astronomy, Toledo, OH 43606, USA

Abstract

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A sample of Be stars with large far-infrared excesses detected by IRAS is selected and their high-resolution IRAS images are examined. The far-infrared emission from most of them is marginally extended and is associated with the optical sources. Modeling of the stars’ spectral energy distributions allows us to rule out the infrared cirrus nature of the excesses. We suggest that the excesses are more likely due to circumstellar dust, possibly formed early in the evolution of the star.

Type
6. Disks
Information
International Astronomical Union Colloquium , Volume 175: The Be Phenomenon in Early-Type Stars , 2000 , pp. 484 - 487
Copyright
Copyright © Astronomical Society of the Pacific 2000

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