The spectrum of the Be star HD 110432

Details The spectrum of the Be star HD 110432 The spectrum of the Be star HD 110432

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26as...57..239c&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 57, Aug. 1984, p. 239-247.

Astronomy and Astrophysics

Astronomy

17

Astronomical Spectroscopy, B Stars, Stellar Spectra, Ultraviolet Astronomy, Absorption Spectra, Angular Velocity, Interstellar Extinction, Line Spectra, Photosphere

Scientific paper

The UV spectrum of HD 110432, a B0.5IIIe star, is described. The IUE spectra present broad absorption photospheric lines, very narrow absorption lines of interstellar origin and narrow absorption lines of highly ionized species (N V, C IV, and Si IV) displaced to the short wavelengths at velocities of about -1350 km s-1. The authors have estimated a rotational velocity of 360 km s-1 and the distance was calculated to be 430 pc. The asymmetric profiles of the resonance lines of Si IV and C IV suggest an expanding envelope corresponding to a mass-loss of about 3×10-9 M_sun;/y.

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