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Ultraviolet observations of accretion disk in LMC X-3We report information obtained from a series of International Ultraviolet Explorer (IUE) low-resolution spectra and two HST UV spectra of LMC X-3. The HST spectra are used to identify disk emission lines and interstellar absorptions as well as to fit continuum models, which indicate the presence of a hot disk component. The IUE observations, mainly taken over approximately 1.5 years, were intended to study how the observed characteristics of the accretion disk change through the precessional cycle. It is shown that although the emission line strengths and short-wavelength ultraviolet flux are well correlated, both optical and UV data show little long-term periodic modulation was present during our observations, indicating LMC X-3 had dropped into a 'low' state.
Document ID
19950030069
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Cowley, A. P.
(Arizona State University Tempe, AZ, United States)
Schmidthe, P. C.
(Arizona State University Tempe, AZ, United States)
Hutchings, J. B.
(Herzberg Institute of Astrophysics Victoria, BC, Canada)
Crampton, D.
(Herzberg Institute of Astrophysics Victoria, BC, Canada)
Date Acquired
August 16, 2013
Publication Date
July 10, 1994
Publication Information
Publication: The Astrophysical Journal
Volume: 429
Issue: 2, pt
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
95A61668
Distribution Limits
Public
Copyright
Other

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