techniques: spectroscopic; stars: magnetic fields; stars: individual (HD 191612; HD 108; HD 148937)
Abstract :
[en] Only 5 Of?p stars have been identified in the Galaxy. Of these, 3 have been studied in detail, and within the past 5 years magnetic fields have been detected in each of them. The observed magnetic and spectral characteristics are indicative of organised magnetic fields, likely of fossil origin, confining their supersonic stellar winds into dense, structured magnetospheres. The systematic detection of magnetic fields in these stars strongly suggests that the Of?p stars represent a general class of magnetic O-type stars.
Research Center/Unit :
STAR - Space sciences, Technologies and Astrophysics Research - ULiège
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Wade, Gregg A; RMC, Canada
Grunhut, Jason H; RMC, Canada
Marcolino, Wagner L F; ONB, Brazil
Martins, Fabrice; GRAAL, France
Howarth, Ian D; UCL, UK
Nazé, Yaël ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique observationnelle (sol et espace)
Walborn, Nolan R; STScI, USA
Language :
English
Title :
Of?p stars: a class of slowly rotating magnetic massive stars
Publication date :
01 July 2011
Event name :
IAU Symposium no. 272
Event date :
19-23 July 2010
Audience :
International
Journal title :
Proceedings of the International Astronomical Union
ISSN :
1743-9213
eISSN :
1743-9221
Publisher :
Cambridge University Press, Cambridge, United Kingdom
