A comparison of models with observations for discrete absorption components in spectra of mass losing stars

Details A comparison of models with observations for discrete absorption components in spectra of mass losing stars A comparison of models with observations for discrete absorption components in spectra of mass losing stars

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.263..347b&link_type=abstract

In ESA Proceedings of an International Symposium on New Insights in Astrophysics. Eight Years of UV Astronomy with IUE p 347-35

Astronomy and Astrophysics

Astrophysics

B Stars, Stellar Mass Ejection, Stellar Models, Stellar Spectra, Absorption Spectra, Iue, Stellar Winds, Ultraviolet Spectroscopy

Scientific paper

A model of ejection of gas parcels from above a star's photosphere, accelerated by radiation pressure, is considered in terms of available IUE observations of Mg II lines and recent H alpha profiles obtained for Beta Ori. The model is consistent with the observations for this star and with properties of discrete absorption components (DAC) detected in early type stars. However, the data are not sufficient for rigorous testing of DAC models since the observations are too sparse and not suitably spaced in time.

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