Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984basi...12..109h&link_type=abstract
Astronomical Society of India, Bulletin, vol. 12, June 1984, p. 109-151.
Astronomy and Astrophysics
Astronomy
47
B Stars, Stellar Envelopes, Stellar Radiation, Stellar Spectra, Absorption Spectra, Balmer Series, Continuous Spectra, Emission Spectra, H Lines
Scientific paper
The mechanisms of formation of the continuum and line spectra of Be stars and the morphology of their cool and hot envelopes are discussed in a review of recent theoretical and observational studies, supplementing the statistical evaluation of Kogure and Hirata (1982). Topics examined include the rapid rotation of Be stars, envelope dynamics, radiation fields, continuum emission, emission-line intensities, emission profiles, shell absorption lines, (general appearance, growth curves, central depths, and Balmer progression), cool-envelope structures (flattened vs vertically expanded, disk vs ring, axisymmetric vs elongated, and inhomogeneous vs multiple-component), circular-velocity laws, and the structure and origin of hot regions. Graphs, diagrams, and tables are provided.
Hirata Ryuko
Kogure Tomokazu
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