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Magnetic fields in classical Be stars: results of our long-term program with FORS1 at the VLT

Published online by Cambridge University Press:  12 July 2011

Ruslan V. Yudin ,
Swetlana Hubrig ,
Michail A. Pogodin  and
Markus Schoeller
Ruslan V. Yudin
Affiliation:
Central Astronomical Observatory of the Russian Academy of Sciences at Pulkovo, Saint-Petersburg, Russia, email: ruslan61@gao.spb.ru
Swetlana Hubrig
Affiliation:
Astrophysical Institute Potsdam, Germany
Michail A. Pogodin
Affiliation:
Central Astronomical Observatory of the Russian Academy of Sciences at Pulkovo, Saint-Petersburg, Russia, email: ruslan61@gao.spb.ru
Markus Schoeller
Affiliation:
European Southern Observatory, Garching, Germany
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Abstract

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We report the results of our search for magnetic fields in a representative sample of classical Be stars carried out during 2006-2008 using low-resolution spectropolarimetry with FORS1 at the VLT. Among the 28 classical Be stars studied, detections of a magnetic field were achieved in seven stars (i.e. ~25%). The detected magnetic fields are rather weak, not stronger than ~150G. Among the Be stars studied with time series, one Be star, λ Eri, displays cyclic variability of the magnetic field with a period of 21.12 min.

Keywords

stars: emission-lineBemagnetic fields
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S272: Active OB stars: structure, evolution, mass loss, and critical limits , July 2010 , pp. 222 - 223
Copyright
Copyright © International Astronomical Union 2011

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