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Magnetic fields in O-type stars measured with FORS 1 at the VLT

Published online by Cambridge University Press:  01 November 2008

Swetlana Hubrig ,
M. Schöller ,
R. S. Schnerr ,
I. Ilyin ,
H. F. Henrichs ,
R. Ignace  and
J. F. González
Swetlana Hubrig
Affiliation:
ESO, Santiago, Chile; email: shubrig@eso.org
M. Schöller
Affiliation:
ESO, Garching, Germany
R. S. Schnerr
Affiliation:
Inst. for Solar Physics, Royal Swedish Academy of Sciences, Stockholm, Sweden
I. Ilyin
Affiliation:
AIP, Potsdam, Germany
H. F. Henrichs
Affiliation:
University of Amsterdam, The Netherlands
R. Ignace
Affiliation:
East Tennessee State University, Johnson City, USA
J. F. González
Affiliation:
Complejo Astronomico El Leoncito, San Juan, Argentina
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Abstract

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The presence of magnetic fields in O-type stars has been suspected for a long time. The discovery of such fields would explain a wide range of well documented enigmatic phenomena in massive stars, in particular cyclical wind variability, Hα emission variations, chemical peculiarity, narrow X-ray emission lines and non-thermal radio/X-ray emission. Here we present the results of our studies of magnetic fields in O-type stars, carried out over the last years.

Keywords

Stars: early-type – stars: magnetic fields – techniques: polarimetric – stars: HD 36879, HD 148937, HD 152408, HD 164794, HD 191612
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S259: Cosmic Magnetic Fields: From Planets, to Stars and Galaxies , November 2008 , pp. 381 - 382
Copyright
Copyright © International Astronomical Union 2009

References

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