Spectroscopic analysis of 48 Lib in the ultraviolet range.

Details Spectroscopic analysis of 48 Lib in the ultraviolet range. Spectroscopic analysis of 48 Lib in the ultraviolet range.

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990rmxaa..21..424l&link_type=abstract

Revista Mexicana de Astronomia y Astrofisica, Vol. 21, p. 424 - 428

Astronomy and Astrophysics

Astronomy

Be Stars: Uv Spectroscopy, Be Stars: Circumstellar Shells, Be Stars: Metal Lines, Circumstellar Shells: Rotation

Scientific paper

To determine the physical conditions of the gaseous envelope of this star the authors analyze its spectrum in the ultraviolet range (λ1250 - 3100 Å) on the basis of the data supplied by the International Ultraviolet Explorer satellite (IUE). The results show that the envelope has a small rotational speed. In this envelope the narrow and deep lines of Fe II, Ni II, and Ti III are originated. In a deeper thin region that rotates with the star the lines of Al III and - apparently - of Si IV are present. These lines show broad profiles due to a high rotational speed.

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