Secular changes in the properties of delta Ceti

Details Secular changes in the properties of delta Ceti Secular changes in the properties of delta Ceti

Feb 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984obs...104....9l&link_type=abstract

The Observatory, vol. 104, p. 9-19 (1984)

Physics

17

Scientific paper

The authors present new radial velocities and a new analysis of all the published photometric and velocity variations of the β-Cephei-type variable δ Ceti. The period of δ Ceti has been increasing by 0.15 s/century since observations began in 1901. The authors confirm that the amplitude of the radial-velocity variation is increasing, but, more significantly, they suggest that the relative phasing between the light and velocity variations changes with time.

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