A study of the magnetic helium variable emission-line star HD 125823
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🌌 astro-ph
keywords
heliumstarvariablemagneticappearanceemissionemission-lineevidence
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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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