Searching for Magnetic Fields in the Descendants of Massive OB Stars

Details Searching for Magnetic Fields in the Descendants of Massive OB Stars Searching for Magnetic Fields in the Descendants of Massive OB Stars

2010-09-16

arxiv.org/abs/1009.3255v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

2 pages, 1 figure, IAUS 272 - Active OB Stars: Structure, Evolution, Mass Loss and Critical Limits

Scientific paper

We present the results of a recent survey of cool, late-type supergiants - the descendants of massive O- and B-type stars - that has systematically detected magnetic fields in these stars using spectropolarimetric observations obtained with ESPaDOnS at the Canada-France-Hawaii Telescope. Our observations reveal detectable, often complex, Stokes V Zeeman signatures in Least-Squares Deconvolved mean line profiles in a significant fraction of the observed sample of ~30 stars.

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