A change in the pulsation period of the R Coronae Borealis star RY SGR

Details A change in the pulsation period of the R Coronae Borealis star RY SGR A change in the pulsation period of the R Coronae Borealis star RY SGR

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.242..259l&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 242, Jan. 15, 1990, p. 259-261.

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Light Curve, R Coronae Borealis Stars, Stellar Oscillations, Computational Astrophysics, Periodic Variations, Sagittarius Constellation

Scientific paper

Further observations of RY Sgr have shown that, since 1985, the star has been pulsating with a shorter period than the previously determined period. The observed times of maxima on the pulsation-related light curve can be satisfied by a linear solution. The earlier conclusion that the pulsation period variations of RY Sgr can be satisfied by a series of linear solutions remains appropriate. If the time taken for the star to adjust to the new period is similar to that observed before, i.e., 15-20 cycles, then a revision of the previous linear solution is required.

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