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Mid-Infrared Spectra of Be Stars

Published online by Cambridge University Press:  12 April 2016

S.A. Rinehart  and
J.R. Houck
S.A. Rinehart
Affiliation:
Queen Mary & Westfield College, Mile End Road, LondonE1 4NS
J.R. Houck
Affiliation:
Cornell University, Ithaca, NY 14850

Abstract

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We present medium-resolution (R ~ 600) mid-infrared (8-13.3μm) spectra of γ Cas and a coadded spectrum of nine Be stars. A large number of lines have been observed and identified in these spectra, including 39 hydrogen recombination lines in the spectrum of γ Cas. In the majority of our spectra, all of the observed lines are attributable to hydrogen recombination. Two additional sources, β Lyr and MWC 349, show [Ne II] emission and β Lyr also displays [He I] emission. We tabulate the effective line strength and line widths for the observed lines, and briefly discuss the physical implications of the observed line series. We also use a simple model of free-free emission to characterize the disks around these sources.

Type
6. Disks
Information
International Astronomical Union Colloquium , Volume 175: The Be Phenomenon in Early-Type Stars , 2000 , pp. 476 - 479
Copyright
Copyright © Astronomical Society of the Pacific 2000

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