The Interpretation of Emission Line Profiles from Envelopes of Be Stars. II. The Model of an Elliptical Gaseous Ring
Abstract
A model of the hydrogen envelope of a Be star, which has the shape of an elliptic ring, is computed. The thickness of the ring is determined by the solution of the equation of hydrostatic equilibrium in the direction perpendicular to the plane of the ring. It is assumed that the ring is optically thin with respect to continuous radiation in all continua except the Lyman. The distribution of electrons into atomic levels is computed from a system of equations of statistical equilibrium. The profiles of the spectral lines emanating from the central star and the gaseous ring are computed. A program in FORTRAN has been written for numerical computations.
 Publication:

Bulletin of the Astronomical Institutes of Czechoslovakia
 Pub Date:
 1979
 Bibcode:
 1979BAICz..30...83K
 Keywords:

 B Stars;
 Cosmic Gases;
 Emission Spectra;
 Line Spectra;
 Stellar Envelopes;
 Fortran;
 Hydrogen;
 Stellar Models;
 Astrophysics