Spectral Energy Distribution from Two-Component Stellar Winds

Details Spectral Energy Distribution from Two-Component Stellar Winds Spectral Energy Distribution from Two-Component Stellar Winds

Mar 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..361..509t&link_type=abstract

Active OB-Stars: Laboratories for Stellar and Circumstellar Physics, ASP Conference Series, Vol. 361, Proceedings of the confere

Physics

Scientific paper

The observed absorption and emission features that emerge from the extended envelope surrounding Be stars are consistent with a two-component wind model. The far-UV lines of superionized elements indicate the presence of a hot and fast wind while the IR excess and the H emission lines are associated with a cool and slow flow. In the optical region, some stars with circumstellar envelopes show two Balmer discontinuities being the second one in absorption or in emission. The aim of this work is to investigate the contribution of a two-component wind upon the appearance of the second Balmer jump and the IR excess in terms of density conditions.

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