Wind structure in late-B supergiants

Details Wind structure in late-B supergiants Wind structure in late-B supergiants

2009-07-07

arxiv.org/abs/0907.1218v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

Contribution to the third conference of the Bulgarian Astronomical Society. Published in Bulgarian Astronomical Journal, Vol.

Scientific paper

Extended spectroscopic datasets of several late-B stars of luminosity class Ia revealed the presence of similar peculiarities in their H alpha profiles, which might be interpreted as indications of deviation from spherically symmetric, smooth wind approximation. Surface structures due to non-radial pulsations or weak, large-scale, dipole magnetic fields might be responsible for creating wind structure in the envelopes of these stars.

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