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| Paper: |
New Insights from Magnetic Studies of Massive OB Stars |
| Volume: |
518, Physics of Magnetic Stars |
| Page: |
40 |
| Authors: |
Kholtygin, A.; Hubrig, S.; Fabrika, S.; Valyavin, G.; Medvedev, A.; Chountonov, G.; Tsiopa, O. |
| Abstract: |
Nearly 6–7% of massive OB stars possess a magnetic field. We review recent investigations of these fields. Special attention is
given to the studies of magnetic properties of high-mass X-ray binaries. A model involving the interaction of magnetized stellar
wind with a neutron star magnetosphere is considered to characterize the behavior of supergiant fast X-ray transients. The
presence of magnetic fields in Be stars is also discussed. We argue that the observed fraction of magnetic stars is determined
by physical conditions at the pre-main-sequence stages of stellar evolution. We also consider the recent finding of fast line-profile variations on a timescale of minutes and even a fraction of a minute in spectra of OBA stars. The existence of
compact regions with local magnetic fields on the surface of massive OB stars and their impact on fast line-profile variations
is also discussed. |
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