Published 1982 | Version v1
Book

UV observations of γ Cas: intermittent mass-loss enhancement

  • 1. Astronomical Institute, University of Amsterdam, Netherlands

Description

Twenty one high resolution IUE observations made over a two year interval revealed remarkable changes in the profiles of the resonance lines of C IV, N V and Si IV in the B 0.5 IVe star γ Cas. Narrow (FWHM < 100 km s-1), blue shifted (v < 1500 km s-1), absorption components of varying strengths are observed in addition to the broad, asymmetric, low-velocity absorption lines which seem to be steady. An earlier proposed model to explain this phenomenon (the UV-shell model by Henrichs et al. 1980) has now been tested and probably confirmed by new observations which were taken with high time resolution. (Auth.)

Additional details

Publishing Information

Publisher
D. Reidel.
Imprint Place
Dordrecht, Netherlands
ISBN
90-277-1366-9
Imprint Title
Be stars
Imprint Pagination
536 p.
Journal Issue
no. 98
Series
International astronomical union symposium.
Journal Page Range
p. 431-435.

Conference

Title
Be stars.
Dates
6 - 10 Apr 1981.
Place
Munich, Germany, F.R.

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
13670537
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
CARBON IONS; EMISSION SPECTRA; MASS TRANSFER; SILICON IONS; STAR MODELS; STARS; STATISTICAL DATA; ULTRAVIOLET SPECTRA
Descriptors DEC
ATOMIC IONS; CHARGED PARTICLES; DATA; INFORMATION; IONS; MATHEMATICAL MODELS; NUMERICAL DATA; SPECTRA