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Magnetism of the He-weak star HR2949

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arxiv 1009.3509 v1 pith:BC4XI5JN submitted 2010-09-17 astro-ph.SR

Magnetism of the He-weak star HR2949

Th. Rivinius , G. Wade , R.H.D. Townsend , M. Shultz , J. Grunhut , O. Stahl , the MiMeS Collaboration This is my paper
classification astro-ph.SR
keywords fieldhe-weakhr2949linesstarabundanceclearlycomplex
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A magnetic field and rotational line profile variability (lpv) is found in the He-weak star HR2949. The field measured from metallic lines varies in a clearly non-sinusoidal way, and shows a phase lag relative to the morphologically similar HeI equivalent width variations. The surface abundance patterns are strong and complex, and visible even in the hydrogen lines.

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