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The evolution of magnetic fields in early B-type stars
Hubrig, S.; Briquet, Maryline; Scholler, M. et al.
2009In Revista Mexicana de Astronomia y Astrofisica Conference Series
 

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Keywords :
stars: abundances; stars: atmospheres; stars: early-type; stars: fundamental parameters; stars: magnetic fields
Abstract :
[en] To date, only a small number of O and early B-type stars have been investigated for magnetic fields, and as a result, only about a dozen magnetic early B-type stars and only few magnetic O stars are known. The lack of information on the existence, origin and role of magnetic fields in massive stars is especially disturbing because magnetic fields may have paramount influence on the stellar evolution of high-mass stars. Our study focuses on the magnetic fields in early B-type stars with a stronger emphasis on beta Cep and SPB stars. Weak longitudinal magnetic fields (up to Ë 300 G) have been recently detected using FORS 1 in a few beta Cep and SPB stars, proving that these types of massive B-type stars can no longer be considered as non-magnetic.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Hubrig, S.;  European Southern Observatory, Casilla 19001, Santiago 19, Chile (shubrig@eso.org).
Briquet, Maryline 
Scholler, M.
De Cat, P.
Morel, Thierry  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE)
Language :
English
Title :
The evolution of magnetic fields in early B-type stars
Publication date :
01 August 2009
Audience :
International
Main work title :
Revista Mexicana de Astronomia y Astrofisica Conference Series
Pages :
319
Commentary :
36
Available on ORBi :
since 19 February 2010

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