Title

Evidence for a bipolar nebula around the peculiar B[e] star HD 45677 from ultraviolet spectropolarimetry

Document Type

Article

Publication Date

12-20-1992

Abstract

We 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-1 space shuttle mission with the Wisconsin Ultraviolet Photo-Polarimeter Experiment, WUPPE, and cover the spectral range 1400-3220 Å. We also present the first optical spectropolarimetry, extending from the atmospheric cutoff to ∼ 7600 Å. 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° in the near-UV as expected from a bipolar reflection nebula.

Publication Source (Journal or Book title)

Astrophysical Journal

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