The C IV resonance lines in B and early A supergiants

Details The C IV resonance lines in B and early A supergiants The C IV resonance lines in B and early A supergiants

Feb 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...235l.149u&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 235, Feb. 1, 1980, p. L149-L152.

Astronomy and Astrophysics

Astrophysics

13

A Stars, B Stars, Stellar Spectra, Stellar Winds, Supergiant Stars, Ultraviolet Spectra, Carbon, Early Stars, Line Spectra

Scientific paper

A rapidly moving hot wind, with Vinfinity near 620 km/s, is seen by means of C IV resonance lines at types B2 Ia and B3 Ia. The C IV lines are not obvious in the winds from supergiants of types B5 Ia to A2 Ia. In the A0 Ia star HD 21389 the C IV lines appear sporadically as sharp, undisplaced emission lines, suggesting the sporadic presence of hot plasma as for some late-type stars.

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