Wind structure in late-B supergiants
arXiv:0907.1218
Abstract
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.
Contribution to the third conference of the Bulgarian Astronomical Society. Published in Bulgarian Astronomical Journal, Vol. 10