The polarized dust envelope around the red supergiant MU Cephei

Details The polarized dust envelope around the red supergiant MU Cephei The polarized dust envelope around the red supergiant MU Cephei

Feb 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...210..198l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 210, no. 1-2, Feb. 1989, p. 198-210.

Astronomy and Astrophysics

Astrophysics

18

Cosmic Dust, Polarized Light, Red Giant Stars, Stellar Envelopes, Supergiant Stars, Absorption Spectra, Brightness Distribution, Light Scattering, Line Of Sight, Stellar Mass, Stellar Spectrophotometry

Scientific paper

A polarization map of scattered light around the red supergiant Mu Cephei has been developed which shows a large dust envelope with a morphology agreeing fairly well with that of its Na I emission. A structure with two different shells lying inside and outside of about 17 arcsec from the star is found along with a significant asymmetry. The polarization of the scattered light is not tangentially oriented, with deviations of about 20 deg, which can be at least qualitatively explained by homogeneously aligned nonspherical grains. The alignment of the polarization suggests that it is due to the interstellar magnetic field. The colors of the polarized scattered light around Mu Cep and Alpha Ori are found to be consistently very similar with a B and U strikingly different from that predicted from Rayleigh scattering. The polarized intensity of the shells, interpreted with Mie scattering theory, yields dust loss rates in agreement with a rate deduced from infrared data.

Affiliated with

Also associated with

No associations

Rating

The polarized dust envelope around the red supergiant MU Cephei does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The polarized dust envelope around the red supergiant MU Cephei, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The polarized dust envelope around the red supergiant MU Cephei will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1884097