Statistics of the Instability Strip of β Cephei Stars

Details Statistics of the Instability Strip of β Cephei Stars Statistics of the Instability Strip of β Cephei Stars

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003chjaa...3..125t&link_type=abstract

Chinese Journal of Astronomy & Astrophysics, Vol. 3, p. 125-132

Astronomy and Astrophysics

Astrophysics

6

Stars, Β Cephei Star, Instabilities

Scientific paper

We present a study of the β Cephei instability strip based on a sample of 49 stars of this type. After deriving their effective temperatures and luminosities from their observed (B-V), (U-B) colors and parallaxes we find their positions in the HR diagram to be mostly confined to the main sequence, and their masses to lie between 7 M&sun; and 30 M&sun;. Their distribution on the HR diagram matches well with our previous theoretical instability strip which has an upper bound in the luminosity and rather tight boundaries in the effective temperature.

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