Title: The magnetic field and the evolution of element spots on the surface of the HgMn eclipsing binary ARAur
Authors: Hubrig, S. ×
Savanov, I.
Ilyin, I.
Gonzalez, J.
Korhonen, H.
Lehmann, H.
Schoeller, M.
Granzer, T.
Weber, M.
Strassmeier, K.
Hartmann, M.
Tkachenko, A. #
Issue Date: Oct-2010
Publisher: Priestley and Weale
Series Title: Monthly Notices of the Royal Astronomical Society vol:408 issue:1 pages:L61-L65
Abstract: The system ARAur is a young late B-type double-lined eclipsing binary with a primary star of HgMn peculiarity. We applied the Doppler imaging method to reconstruct the distribution of Fe and Y over the surface of the primary using spectroscopic time series obtained in 2005 and from 2008 October to 2009 February. The results show a remarkable evolution of the element distribution and overabundances. Measurements of the magnetic field with the moment technique using several elements reveal the presence of a longitudinal magnetic field of the order of a few hundred gauss in both stellar components and a quadratic field of the order of 8kG on the surface of the primary star.
ISSN: 0035-8711
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Institute of Astronomy
× corresponding author
# (joint) last author

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