SIMBAD references

1996A&A...312..234Y - Astronomy and Astrophysics, volume 312, 234-242 (1996/8-1)

Quasi-simultaneous polarimetry and photometry of peculiar early-type stars. I. Circumstellar environment of a B[e] star: MWC 349 (=V1478 Cygni).


Abstract (from CDS):

We present and discuss optical polarimetry and BVRIJHK photometry of a galactic B[e] star: MWC 349; much of the data were obtained quasi-simultaneously. Large time variability of the polarization degree ({DELTA} p≃8%) was detected. Comparison with earlier measurements of polarization and brightness has been made. Configuration and orientation of the circumstellar gas and dust environment and the processes responsible for the observed behavior of MWC 349 are discussed. We conclude that the polarimetric variability is caused by changes of physical conditions in high-density, ionized gas. Incidentally the non-variable component of the observed polarization is connected with the circumstellar dust disk.

Abstract Copyright:

Journal keyword(s): polarization - circumstellar matter - stars: individual: MWC 349 - emission line

Simbad objects: 7

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