Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980esasp.157..139d&link_type=abstract
The second European International Ultraviolet Explorer (IUE) Conference, held 26-28 March 1980 in Tübingen, West Germany. Edited
Astronomy and Astrophysics
Astronomy
15
B Stars, Iue, Stellar Winds, Ultraviolet Astronomy, Absorption Spectra, Carbon, Emission Spectra, Iron, Magnesium, Shell Stars, Silicon, Stellar Envelopes, Stellar Rotation
Scientific paper
High-dispersion International Ultraviolet Explorer (IUE) spectrograms were obtained for eight bright early-type Be and shell stars. Indications for stellar winds were found in all program stars from asymmetric or violet-shifted ultraviolet resonance line profiles. The strongest wind velocities were observed for rho Car. The maximum velocities derived for rho Car from the violet edges of the C 4 and Si 4 resonance lines (-700 to -1100 km/sec) approximately corresponded to the wind velocity measured from the extension of the wings of emission in the H alpha line profiles found one year earlier (900 km/s). Emission appeared to be present only for part of the stars and only in the Fe2 and Mg2 resonance lines.
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