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Of?p stars: a class of slowly rotating magnetic massive stars

Published online by Cambridge University Press:  12 July 2011

Gregg A. Wade ,
Jason H. Grunhut ,
Wagner L. F. Marcolino ,
Fabrice Martins ,
Ian D. Howarth ,
Yael Nazé  and
Nolan R. Walborn
Gregg A. Wade
Affiliation:
RMC, Canada
Jason H. Grunhut
Affiliation:
RMC, Canada
Wagner L. F. Marcolino
Affiliation:
ONB, Brazil
Fabrice Martins
Affiliation:
GRAAL, France
Ian D. Howarth
Affiliation:
UCL, UK
Yael Nazé
Affiliation:
Liège, Belgium
Nolan R. Walborn
Affiliation:
STScI, USA
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Abstract

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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.

Keywords

techniques: spectroscopicstars: magnetic fieldsstars: individual (HD 191612, HD 108, HD 148937)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S272: Active OB stars: structure, evolution, mass loss, and critical limits , July 2010 , pp. 220 - 221
Copyright
Copyright © International Astronomical Union 2011

References

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