Far ultraviolet colors of Beta Cephei stars

Details Far ultraviolet colors of Beta Cephei stars Far ultraviolet colors of Beta Cephei stars

Sep 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...126..205z&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 126, no. 1, Sept. 1983, p. 205, 206.

Astronomy and Astrophysics

Astrophysics

2

B Stars, Far Ultraviolet Radiation, Stellar Spectrophotometry, Variable Stars, Spectral Energy Distribution, Stellar Color, Stellar Luminosity

Scientific paper

The ultraviolet colors of Beta Cephei-type stars were studied using a G index independent of a mean interstellar reddening. The G index characterizes the ultraviolet energy distribution of the stars in the range 1460-2740 A. The Beta Cephei stars have ultraviolet colors which correspond to those of normal B stars having the same spectral type and luminosity class, that is, colors of normal B stars between those of luminosity classes IV and V and those of luminosity class III. However, the G index of Sigma Sco is quite different from that of normal stars. It identifies an abnormal energy distribution, interpreted up to now as due to a peculiar interstellar absorption law.

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