Similarities in the wind characteristics of hot stars

Details Similarities in the wind characteristics of hot stars Similarities in the wind characteristics of hot stars

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...232..119p&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 232, no. 1, June 1990, p. 119-125.

Astronomy and Astrophysics

Astrophysics

6

Hot Stars, Stellar Mass Ejection, Stellar Winds, Iue, Terminal Velocity, Ultraviolet Spectra

Scientific paper

The direct observational similarities in the characteristics of winds in a wide selection of hot stars are considered. Data are presented which demonstrate that discrete absorption components are observed in the UV resonance line profiles of WR stars, WR + O type binaries, B supergiants, B emission-line stars, subdwarf O stars, and the central stars of planetary nebulae (CSPN). The data also show that all these classes of stars may exhibit substantial wind variability, and that the wind terminal velocities of O stars, B supergiants, Be stars, and CSPN are a strong function of T(eff). The wind characteristics are discussed as possible signatures of a common wind driving mechanism, emphasizing the role of radiation pressure driving.

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