Keywords
Be Stars: UV Spectroscopy
Be Stars: Circumstellar Shells
Be Stars: Metal Lines
Circumstellar Shells: Rotation
Be Stars: Circumstellar Shells
Be Stars: Metal Lines
Circumstellar Shells: Rotation
How to Cite
Spectroscopic analysis of 48 Lib in the ultraviolet range. (1990). Revista Mexicana De Astronomía Y Astrofísica, 21(1), 424. https://astronomia.unam.mx/journals/rmxaa/article/view/1990rmxaa..21..424l
Abstract
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.Similar Articles
- Hagen W., Carpenter K. G., Stencel R. E., Observaciones con IUE e IRAS de gigantes y supergigantes rojas. , Revista Mexicana de Astronomía y Astrofísica: Vol. 14 No. 1 (1987)
- Wing R. F., Infrared photometry and the detection of circumstellar dust. , Revista Mexicana de Astronomía y Astrofísica: Vol. 29 No. 1 (1994)
- Monderen P., The P. S., The nature of a nebulous stellar object in Centaurus. , Revista Mexicana de Astronomía y Astrofísica: Vol. 15 No. 1 (1987)
- Evans N. J., II, Recent results on star formtion , Revista Mexicana de Astronomía y Astrofísica: Vol. 27 No. 1 (1993)
- Garnett D. R., Chu Y. -H., Dopita M. A., A new Wolf-Rayet ejecta shell in the LMC. , Revista Mexicana de Astronomía y Astrofísica: Vol. 27 No. 1 (1993)
- Cantó J., Sarmiento A., Rodríguez L. F., Elongated structures near stars: jets or projection effects? , Revista Mexicana de Astronomía y Astrofísica: Vol. 13 No. 1 (1986)
- Bossi M., Guerrero G., Mantegazza L., Poretti E., Re R., Spectroscopy and photometry as a synergetic approach to the study of stellar pulsations. , Revista Mexicana de Astronomía y Astrofísica: Vol. 29 No. 1 (1994)
- Rovira M., Ringuelet A. E., Fontenla J. M., Sahade J., Kondo Y., Simultaneous IUE and ground-based observations of 48 Librae. , Revista Mexicana de Astronomía y Astrofísica: Vol. 10 No. 1 (1985)
- Carrasco L., Cruz-González I., Grasdalen G. L., On the masses of the circumstellar dust disks around the YSO's R Mon and R50. , Revista Mexicana de Astronomía y Astrofísica: Vol. 14 No. 1 (1987)
- Sahade J., Garcia L. G., Preliminary report on the IUE spectra of mu1 Sco. , Revista Mexicana de Astronomía y Astrofísica: Vol. 6 No. 1 (1981)