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Searching for Magnetic Fields in the Descendants of Massive OB Stars

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arxiv 1009.3255 v1 pith:NXUFLROE submitted 2010-09-16 astro-ph.SR

Searching for Magnetic Fields in the Descendants of Massive OB Stars

classification astro-ph.SR
keywords starsdescendantsfieldsmagneticmassiveobservationsb-typecanada-france-hawaii
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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