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Spectrophotometry of Wolf-Rayet stars - Intrinsic colors and absolute magnitudesAbsolute spectrophotometry of about 10-A resolution in the range 3400-7300 A have been obtained for southern Wolf-Rayet stars, and line-free magnitudes and colors have been constructed. The emission-line contamination in the narrow-band ubvr systems of Westerlund (1966) and Smith (1968) is shown to be small for most WN stars, but to be quite significant for WC stars. It is suggested that the more severe differences in intrinsic color from star to star of the same spectral subtype noted at shorter wavelengths are due to differences in atmospheric extent. True continuum absolute visual magnitudes and intrinsic colors are obtained for the LMC WR stars. The most visually luminous WN6-WN7 stars are found to be located in the core of the 30 Doradus region.
Document ID
19880064320
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Torres-Dodgen, Ana V.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Massey, Philip
(Kitt Peak National Observatory Tucson, AZ, United States)
Date Acquired
August 13, 2013
Publication Date
September 1, 1988
Publication Information
Publication: Astronomical Journal
Volume: 96
ISSN: 0004-6256
Subject Category
Astronomy
Accession Number
88A51547
Distribution Limits
Public
Copyright
Other

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