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arXiv · astro-ph/9812038

Disk winds of B[e] supergiants

F. -J. Zickgraf
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Abstract

The class of B[e] supergiants is characterized by a two-component stellar wind consisting of a normal hot star wind in the polar zone and a slow and dense disk-like wind in the equatorial region. The properties of the disk wind are discussed using satellite UV spectra of stars seen edge-on, i.e. through the equatorial disk. These observations show that the disk winds are extremely slow, 50-90 km/s, i.e. a factor of about 10 slower than expected from the spectral types. Optical emission lines provide a further means to study the disk wind. This is discussed for line profiles of forbidden lines formed in the disk.

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F. -J. Zickgraf. 1998-12-02. Disk winds of B[e] supergiants. https://doi.org/10.1007/bfb0106353

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