No Random Cycle-to-Cycle Period Changes in the β Cephei Star BW Vulpeculae

Details No Random Cycle-to-Cycle Period Changes in the β Cephei Star BW Vulpeculae No Random Cycle-to-Cycle Period Changes in the β Cephei Star BW Vulpeculae

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003pasp..115..626p&link_type=abstract

The Publications of the Astronomical Society of the Pacific, Volume 115, Issue 807, pp. 626-627.

Astronomy and Astrophysics

Astronomy

4

Stars: Early-Type, Stars: Evolution, Stars: Individual: Constellation Name: Bw Vulpeculae, Stars: Oscillations

Scientific paper

We show, using the formalism of Eddington & Plakidis, that the
nonevolutionary period changes in the β Cephei star BW Vul are not
the result of random cycle-to-cycle period fluctuations, as they are in
several cooler types of pulsating variables. The fractional fluctuation
per cycle is less than 0.002.

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