Stellar mass loss in late B-type supergiants

Details Stellar mass loss in late B-type supergiants Stellar mass loss in late B-type supergiants

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.169...85g&link_type=abstract

(IAU, European Regional Astronomy Meeting on New Windows to the Universe, 11th, La Laguna, Spain, July 3-8, 1989) Astrophysics a

Astronomy and Astrophysics

Astrophysics

4

B Stars, Late Stars, Stellar Mass Ejection, Supergiant Stars, H Alpha Line, Iue, Stellar Atmospheres, Stellar Models, Stellar Winds

Scientific paper

A study using archive IUE data of time-varying mass loss has been carried out for a sample of 12 supergiants in the spectral range B5-B9. Additionally dedicated IUE velocity-time observations of discrete absorption components (DAC) in the UV resonance lines have been made for one of the stars (Beta Ori), while optical data obtained for this star shows time variability in the H-alpha profile. Ions in which mass-loss features occur are unambiguously identified by comparing spectra of the stars at different mass loss episodes.

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