A study of the magnetic helium variable emission-line star HD 125823

Details A study of the magnetic helium variable emission-line star HD 125823 A study of the magnetic helium variable emission-line star HD 125823

2007-03-18

arxiv.org/abs/astro-ph/0703478v1

Astronomy and Astrophysics

Astrophysics

2 pages, 2 figures, to appear in "Precision Spectroscopy in Astrophysics"

Scientific paper

10.1007/978-3-540-75485-5_71

The 5.9 M_sun star HD 125823 is a striking helium variable with a period of
8.82 d, ranging in helium spectral type from He-strong B2 to He-weak B8. For
the first time we present here observational evidence for the appearance of
emission lines of Mn and Fe in a variable magnetic star.

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