The evidence for aspect dependent winds in Be stars

Details The evidence for aspect dependent winds in Be stars The evidence for aspect dependent winds in Be stars

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.263..419g&link_type=abstract

In ESA Proceedings of an International Symposium on New Insights in Astrophysics. Eight Years of UV Astronomy with IUE p 419-42

Astronomy and Astrophysics

Astrophysics

2

Beryllium, Metallic Stars, Stellar Spectra, Stellar Winds, Stellar Mass Ejection, Ultraviolet Absorption, Ultraviolet Spectra

Scientific paper

The authors present the results of a stellar wind survey in 62 Be and 43 B stars covering B0 III-V to B5 III-V. They find that the wind absorption seen in C IV in Be stars is due to blended absorption from multiple shortward-shifted discrete components. Such components are not observed in normal B stars, but occur in 63% of the Be stars in this sample. Shortward-shifted discrete components in Be stars are observed only if v sin i > 150 km/s. Be stars with lower v sin i do not have shortward-shifted components. Ten Be stars in this sample, including 2 low v sin i stars, show strong unshifted absorption components, similar to features seen in β Cep stars.

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