Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26as...58...95c&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 58, Oct. 1984, p. 95-115. Research supported by the Consigli
Astronomy and Astrophysics
Astrophysics
6
Line Shape, O Stars, Resonance Lines, Stellar Spectra, Ultraviolet Spectra, Astronomical Spectroscopy, High Resolution, Iue, Open Clusters, Satellite Observation, Stellar Atmospheres, Stellar Luminosity, Stellar Winds, Subdwarf Stars
Scientific paper
P Cygni and related profiles of the resonance lines of N V, Si IV and C IV ions are studied over a sample of 40 O-stars observed with IUE in the high resolution mode. The sample includes subdwarf stars, high luminosity population II objects, stars which are not recognized members of open clusters and/or associations, and stars which are members. The profiles give information on the ionization structure of the expanding stellar atmosphere and on the velocity fields. The large variety of these profiles and the wide range of observed velocities allow a look to be taken at the largely unexplored field of stellar individuality.
Costero Rafael
Stalio Roberto
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