C IV and SI IV in IUE spectra of normal B8-A0 stars: UV identified Be/Ae stars

Details C IV and SI IV in IUE spectra of normal B8-A0 stars: UV identified Be/Ae stars C IV and SI IV in IUE spectra of normal B8-A0 stars: UV identified Be/Ae stars

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988esasp.281a.397c&link_type=abstract

In ESA, A Decade of UV Astronomy with the IUE Satellite, Volume 1 p 397-400 (SEE N89-10682 01-89)

Astronomy and Astrophysics

Astronomy

B Stars, Iue, Spaceborne Astronomy, Stellar Spectra, Ultraviolet Astronomy, Ultraviolet Spectra, Interstellar Matter, Shell Stars, Stellar Winds

Scientific paper

Archival IUE high dispersion spectra of 42 B6-A2 stars within 200 pc were surveyed. Five of the program stars show significant C IV and Si IV absorption. All of the stars with detected C IV have v sin i less than or = 190 km/sec. Sharp absorption cores are present in Si II lambda 1533 in 3 of the objects, indicating that these are previously unrecognized shell stars. Three of the stars have variable or asymmetric C IV profiles which are consistent with the C IV and Si IV being produced in stellar winds. One star has C IV in the form of a shortward-shifted discrete absorption component, similar to those observed in Be stars. The data are compared with similar data for Be and B shell stars.

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