Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...325..342l&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 325, Feb. 1, 1988, p. 342-354. NASA-NSF-supported research.
Astronomy and Astrophysics
Astrophysics
21
Early Stars, Resonance Lines, Stellar Mass Ejection, Ultraviolet Spectra, Absorption Spectra, Carbon, Emission Spectra, Iue, Nitrogen, Silicon, Stellar Winds
Scientific paper
The 72 IUE spectra of Alpha Cam and 19 IUE spectra of Kappa Cas, obtained during 72 hours of continuous IUE time in September 1978 were searched for variations in the profiles of the resonance lines of Si IV, C IV, and N V, and the results are discussed. The UV resonance lines in the spectra of Alpha Cam showed variations at the 2 percent level near -1800, -700, and +700 km/s. The first two variations can be explained by absorption components of outward-accelerated blobs or shells with an average acceleration of 1.5 cm/sq s. The characteristics of the blobs and shells are discussed, including the column densities and masses. No variations were found in the spectra of Kappa Cas.
de Jager Cornelis
Lamers Henry J. G. L. M.
Langerwerf A.
Snow Theodore P.
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