The frequency of the brightness minima of R Coronae Borealis type stars

Details The frequency of the brightness minima of R Coronae Borealis type stars The frequency of the brightness minima of R Coronae Borealis type stars

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985kfnt....1...10r&link_type=abstract

Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 1, Sept.-Oct. 1985, p. 10-12. In Russian.

Physics

2

Brightness Distribution, Frequency Distribution, Light Curve, R Coronae Borealis Stars, Spectrum Analysis, Supergiant Stars, Variable Stars, Minima, Spectral Energy Distribution, Temporal Distribution, Visible Spectrum

Scientific paper

An analysis of the light curves of R CrB for 130 years and of RY Sgr and SU Tau for 90 years is presented. It is shown that the time intervals between the consecutive minima of the visual brightness of R Coronae Borealis type stars are distributed uniformly with upper limits of 1540 d, 1800 d, and 1500 d, respectively, for the three above-mentioned stars. Minima with amplitudes of Delta-m approximately equal to 7 m are observed more frequently than those with Delta-m = 1-2 m.

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