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Evidence for disks around certain luminous Magellanic cloud stars from the study of FeII

Published online by Cambridge University Press:  04 August 2017

G. Muratorio  and
M. Friedjung
G. Muratorio
Affiliation:
Observatoire de Marseille 2, place Le Verrier F-13248 Marseille Cedex 04
M. Friedjung
Affiliation:
Observatoire de Marseille 2, place Le Verrier F-13248 Marseille Cedex 04

Abstract

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Study of FeII emission lines in emission and absorption using both emission line self absorption curves and ultraviolet spectral synthetis, shows that line emission is produced in the case of certain luminous Magellanic Cloud stars, in a region not in front of the photosphere. This region is most easily understood as being a disk. Absorption lines of FeII are either produced by a wind, or if the disk inclination is small with respect to the line of sight, in layers associated with the disk. The presence of disks also helps one to explain the form of the continuous energy distribution.

Type
Mass Loss from Hot Stars
Information
Symposium - International Astronomical Union , Volume 122: Circumstellar Matter , 1987 , pp. 443 - 444
Copyright
Copyright © Reidel 1987