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Searching for weak or complex magnetic fields in polarized spectra of Rigel

Published online by Cambridge University Press:  12 July 2011

Matthew Shultz ,
Gregg A. Wade ,
Coralie Neiner ,
Nadine Manset ,
Véronique Petit ,
Jason H. Grunhut ,
Edward Guinan  and
David A. Hanes
Matthew Shultz
Affiliation:
Queen's University, Canada Royal Military College, Canada
Gregg A. Wade
Affiliation:
Royal Military College, Canada
Coralie Neiner
Affiliation:
Paris-Meudon Observatory
Nadine Manset
Affiliation:
Canada-France-Hawaii Telescope Corporation
Véronique Petit
Affiliation:
Royal Military College, Canada West Chester U
Jason H. Grunhut
Affiliation:
Queen's University, Canada Royal Military College, Canada
Edward Guinan
Affiliation:
Villanova U
David A. Hanes
Affiliation:
Queen's University, Canada
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Abstract

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Seventy-eight high-resolution Stokes V, Q and U spectra of the B8Iae supergiant Rigel were obtained with the ESPaDOnS spectropolarimeter at CFHT and its clone NARVAL at TBL in the context of the Magnetism in Massive Stars (MiMeS) Large Program, in order to scrutinize this core-collapse supernova progenitor for evidence of weak and/or complex magnetic fields. In this paper we describe the reduction and analysis of the data, the constraints obtained on any photospheric magnetic field, and the variability of photospheric and wind lines.

Keywords

stars: magnetic fieldsstars: variables: otherstars: activitystars: windsoutflows

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