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Seeking the progenitors of magnetic Ap stars: A search for magnetic fields in HAeBe stars using FORS1 and ESPaDOnS

Published online by Cambridge University Press:  13 January 2006

D. Drouin
Affiliation:
Royal Military College of Canada, Kingston, Canada
G.A. Wade
Affiliation:
Royal Military College of Canada, Kingston, Canada
S. Bagnulo
Affiliation:
European Southern Observatory, Santiago, Chile
J.D. Landstreet
Affiliation:
Department of Physics & Astronomy, University of Western Ontario, London, Canada
E. Mason
Affiliation:
Department of Physics & Astronomy, University of Western Ontario, London, Canada
J. Silvester
Affiliation:
Royal Military College of Canada, Kingston, Canada Department of Physics, Queen's University, Kingston, Canada
E. Alecian
Affiliation:
Obs. de Paris LESIA, Meudon, France
T. Böhm
Affiliation:
Obs. Midi-Pyrénées, Toulouse, France
J.-C. Bouret
Affiliation:
Laboratoire d'Astrophysique de Marseille, Marseille, France
C. Catala
Affiliation:
Laboratoire d'Astrophysique de Marseille, Marseille, France
J.-F. Donati
Affiliation:
Laboratoire d'Astrophysique de Marseille, Marseille, France
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Abstract

We report the discovery, using FORS1 at the ESO-VLT and ESPaDOnS at the Canada-France-Hawaii Telescope, of magnetic fields and chemical peculiarities in the Herbig Ae/Be stars HD 72106 and HD 101412. These stars may well represent pre-main sequence progenitors of the magnetic Ap/Bp stars. At the same time, we fail to confirm claims by Hubrig et al. (2004) of the presence of magnetic fields in the Herbig Ae star HD 139614.

Type
Research Article
Copyright
© EAS, EDP Sciences, 2005

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Seeking the progenitors of magnetic Ap stars: A search for magnetic fields in HAeBe stars using FORS1 and ESPaDOnS
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