The Rates of Change of the Fundamental and Overtone Periods of Sx-Phoenicis

Details The Rates of Change of the Fundamental and Overtone Periods of Sx-Phoenicis The Rates of Change of the Fundamental and Overtone Periods of Sx-Phoenicis

Apr 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982mnras.199..135c&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Vol. 199, P. 135, 1982

Astronomy and Astrophysics

Astronomy

11

Scientific paper

Using existing data for SX Phe, we calculate the rates of change in the fundamental period and the overtone period assuming that both are changing at a constant rate. We find values:
dP0 / dt = (-87±5) × 10-13
dP1 / dt = (-174±9) × 10-13
The method used is applicable to any pulsating variable star whose times of maximum light exhibit measurable multiperiodicity.

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