Microvariability of spectral line profiles and magnetic fields of early-type stars: ζ Ori A

Details Microvariability of spectral line profiles and magnetic fields of early-type stars: ζ Ori A Microvariability of spectral line profiles and magnetic fields of early-type stars: ζ Ori A

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012astbu..67...67d&link_type=abstract

Astrophysical Bulletin, Volume 67, Issue 1, pp.67-72

Astronomy and Astrophysics

Astrophysics

Stars: Early-Type, Stars: Individual: Ζ Ori A, Stars:Variables:General, Stars:Magnetic Fields

Scientific paper

We report the results of spectropolarimetric observations of the supergiant ζ Ori A made with 6-m BTA telescope of the SAO RAS. We found regular variations of line profiles in the spectrum of the star with a period of 1-3 hours and point to their possible association with nonradial photospheric pulsations. We also searched for a possible weak magnetic field in ζ Ori A, but observations did not confirm the existence of such a field in the star considered.

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