The Nature of the Period Changes in RV Tauri Stars

Details The Nature of the Period Changes in RV Tauri Stars The Nature of the Period Changes in RV Tauri Stars

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997pasp..109..264p&link_type=abstract

Publications of the Astronomical Society of the Pacific, v.109, p.264-269

Astronomy and Astrophysics

Astronomy

23

Stars: Population Ii, Stars: Late-Type

Scientific paper

We have studied the period changes in 15 RV Tauri stars, using the Eddington- Plakidis hypothesis, which assumes that the (O-C) diagrams can be interpreted as a superposition of random errors in the measured times of minimum, and random cycle-to-cycle fluctuations in the period. Except for three stars for which the data are sparse, the hypothesis fits the (O-C) data very well, suggesting that the assumptions are correct. The magnitude of the random period fluctuations does not appear to correlate with any obvious physical property of stars. (SECTION: Stars)

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