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Evidence for a bipolar nebula around the peculiar B(e) star HD 45677 from ultraviolet spectropolarimetryWe report the first ultraviolet spectropolarimetry of the peculiar B-type emission-line star with infrared excess HD 45677. The observations were obtained during the 1990 December Astro-l space shuttle mission with the Wisconsin Ultraviolet Photo-Polarimeter Experiment, and cover the spectral range 1400-3220 A. We also present the first optical spectropolarimetry, extending from the atmospheric cutoff to about 7600 A. The observed UV/optical linear polarization displays a strong increase toward shorter wavelengths indicative of scattering by circumstellar dust. The position angle of the intrinsic polarization flips by 90 deg in the near-UV as expected from a bipolar reflection nebula.
Document ID
19930037525
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1086/186682
Authors
Schulte-Ladbeck, R. E. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Shepherd, D. S. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Nordsieck, K. H. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Code, A. D. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Anderson, C. M. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Babler, B. L. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Bjorkman, K. S. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Clayton, G. C. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Magalhaes, A. M. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Meade, M. R. (Wisconsin Univ. Madison, United States)
Date Acquired
August 16, 2013
Publication Date
December 20, 1992
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters
Volume: 401
Issue: 2
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
93A21522
Funding Number(s)
CONTRACT_GRANT: NAS5-26777
Distribution Limits
Public
Copyright
Other

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