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Scattered light in the IUE spectra of Epsilon AurigaeRecent infrared photometry indicates that the alleged disk of particulate matter surrounding the mysterious secondary object in the Epsilon Aur system is cold, around 500 K. IUE spectra, on the other hand, contain significant flux in excess of that expected from an F0 Ia star in the far UV, which if interpreted as a hot secondary star leads to a possible contradiction with the IR data. Other models of the UV excess have been proposed, including the idea that the bulk of the short-wavelength flux is light scattered into the SWP camera from longer wavelengths. With the recent availability of a detailed generalized IUE descattering algorithm it is possible to thoroughly investigate the scattered-light contribution to the short-wavelength continuum. It is found that the IUE spectra are indeed partially contaminated by scattered light, but that even after correction for this instrumental effect a significant time-dependent UV excess is still present.
Document ID
19860063705
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Altner, B.
(Applied Research Corp. Landover, MD, United States)
Chapman, R. D.
(Applied Research Corp. Landover, MD, United States)
Kondo, Y.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Stencel, R. E.
(NASA Astrophysics Div. Washington, DC, United States)
Date Acquired
August 12, 2013
Publication Date
July 1, 1986
Publication Information
Publication: Astronomy and Astrophysics Supplement Series
Volume: 65
Issue: 1, Ju
ISSN: 0365-0138
Subject Category
Astrophysics
Accession Number
86A48443
Distribution Limits
Public
Copyright
Other

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