Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26as...53..339h&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 53, Sept. 1983, p. 339-346.
Astronomy and Astrophysics
Astrophysics
7
Stellar Mass Ejection, Stellar Winds, Supergiant Stars, Ultraviolet Spectra, Absorption Spectra, Late Stars, Line Spectra, Radiative Transfer, Stellar Envelopes, Velocity Distribution
Scientific paper
An atlas of theoretical curves of growth calculated for pure absorption lines formed in the winds of the cool component of ζ Aur/VV Cep systems is presented. The envelope structure is characterized by the wind velocity, which has been assumed to be constant, the dimensions of the system and the atomic parameters of the line under study. Phase dependence of equivalent widths and the effect of different velocity laws are discussed. Observed UV absorption lines such as those of Fe II mult. 9 can be used to determine wind velocities, stochastic velocities and mass loss rates from the calculated curves of growth.
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