Inhomogeneities in the circumstellar envelope of the A0E herbig star AB aur

Details Inhomogeneities in the circumstellar envelope of the A0E herbig star AB aur Inhomogeneities in the circumstellar envelope of the A0E herbig star AB aur

Feb 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ap%26ss.224..429b&link_type=abstract

Astrophysics and Space Science, Volume 224, Issue 1-2, pp. 429-430

Astronomy and Astrophysics

Astrophysics

Line Profiles, Polarization, Stellar Wind, Inhomogeneity

Scientific paper

Simultaneous high-resolution spectroscopy in Hα andUBVRI polarimetric observations are proposed as an effective method for the search for circumstellar inhomogeneities in A0-type Herbig stars. The new results for AB Aur are presented as a successful example of the use of this method. The analysis of about 100 CCD Hα profiles (R = 30 000) and more than 150 polarimetric measurements obtained in January, 1994 allowed to discover a long-lived stream-like inhomogeneity in the circumstellar gaseous envelope.

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