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The BinaMIcS project: understanding the origin of magnetic fields in massive stars through close binary systems

Published online by Cambridge University Press:  23 January 2015

E. Alecian ,
C. Neiner ,
G. A. Wade ,
S. Mathis ,
D. Bohlender ,
D. Cébron ,
C. Folsom ,
J. Grunhut ,
J.-B. Le Bouquin  and
V. Petit
...Show all authors
E. Alecian
Affiliation:
UJF-Grenoble 1/CNRS-INSU, Institut de Planétologie et d'Astrophysique de Grenoble (IPAG) UMR 5274, 38041 Grenoble, France, email: evelyne.alecian@obs.ujf-grenoble.fr LESIA, Observatoire de Paris, CNRS UMR 8109, UPMC, Université Paris Diderot, France
C. Neiner
Affiliation:
LESIA, Observatoire de Paris, CNRS UMR 8109, UPMC, Université Paris Diderot, France
G. A. Wade
Affiliation:
Dept. of Physics, Royal Military College of Canada, Kingston, ON, CanadaK7K 0C6
S. Mathis
Affiliation:
LESIA, Observatoire de Paris, CNRS UMR 8109, UPMC, Université Paris Diderot, France Laboratoire AIM Paris-Saclay, CEA/DSM – CNRS – Université Paris Diderot, IRFU/SAp Centre de Saclay, 91191 Gif-sur-Yvette Cedex, France
D. Bohlender
Affiliation:
DAO, CNRC, Victoria, BC V9E 2E7, Canada
D. Cébron
Affiliation:
Université Grenoble Alpes, CNRS, ISTerre, Grenoble, France
C. Folsom
Affiliation:
LATT – CNRS/Université de Toulouse, 14 Av. E. Belin, Toulouse F-31400, France
J. Grunhut
Affiliation:
ESO, Garching bei München, Germany
J.-B. Le Bouquin
Affiliation:
UJF-Grenoble 1/CNRS-INSU, Institut de Planétologie et d'Astrophysique de Grenoble (IPAG) UMR 5274, 38041 Grenoble, France, email: evelyne.alecian@obs.ujf-grenoble.fr
V. Petit
Affiliation:
Bartol Research Institute, University of Delaware, Newark, DE 19716, USA
H. Sana
Affiliation:
ESA/Space Telescope Science Institute, Baltimore, MD 21218, USA
A. Tkachenko
Affiliation:
Instituut voor Sterrenkunde, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
A. ud-Doula
Affiliation:
Penn State Worthington Scranton, Dunmore, PA 18512, USA
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Abstract

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It is now well established that a fraction of the massive (M > 8 M⊙) star population hosts strong, organised magnetic fields, most likely of fossil origin. The details of the generation and evolution of these fields are still poorly understood. The BinaMIcS project takes an important step towards the understanding of the interplay between binarity and magnetism during the stellar formation and evolution, and in particular the genesis of fossil fields, by studying the magnetic properties of close binary systems. The components of such systems are most likely formed together, at the same time and in the same environment, and can therefore help us to disentangle the role of initial conditions on the magnetic properties of the massive stars from other competing effects such as age or rotation. We present here the main scientific objectives of the BinaMIcS project, as well as preliminary results from the first year of observations from the associated ESPaDOnS and Narval spectropolarimetric surveys.

Keywords

stars: binaries: closestars: magnetic fields
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Issue S307: New windows on massive stars: asteroseismology, interferometry, and spectropolarimetry , June 2014 , pp. 330 - 335
Copyright
Copyright © International Astronomical Union 2015 

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