Evidence for a bipolar nebula around the peculiar B[e] star HD 45677 from ultraviolet spectropolarimetry
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)
Schulte-Ladbeck, R., Shepherd, D., Nordsieck, K., Code, A., Anderson, C., Babler, B., Bjorkman, K., Clayton, G., Magalhães, A., Meade, M., Taylor, M., & Whitney, B. (1992). Evidence for a bipolar nebula around the peculiar B[e] star HD 45677 from ultraviolet spectropolarimetry. Astrophysical Journal, 401 (2 PART 2) https://doi.org/10.1086/186682