The period changes of BW Vulpeculae

Details The period changes of BW Vulpeculae The period changes of BW Vulpeculae

Sep 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985cha%26a...9..191j&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 9, Issue 3, p. 191-195.

Astronomy and Astrophysics

Astrophysics

3

Scientific paper

The period of the β Cephei variable, BW Vulpeculae, is increasing all the time at a rate of (14.24±0.20)×10-10d/d. The residual in the time of light maximum shows a quasi-sinusoidal variation with a period of about 26.3 years and an amplitude of 0.022 - 0.024 days. If this is interpreted as the light-time effect in a binary orbit, then the orbit will have a size a sin i = 1.91 - 2.08 AU and an eccentricity e = 0.52.

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