Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pasp..102..338g&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 102, March 1990, p. 338-343.
Astronomy and Astrophysics
Astronomy
4
Cepheid Variables, Effects, Frequency Distribution, Statistical Analysis, Histograms, Statistical Correlation, Variable Stars
Scientific paper
A survey of variable-period RR Lyrae field stars of type RRab was conducted. The data for these stars were culled from the fourth edition of the General Catalogue of Variable Stars (Kholopov 1985, 1987). The survey includes stars known to exhibit the Blazhko effect, stars that possibly exhibit the Blazhko effect, starr known only to have variable periods, and stars that possibly have variable periods. A correlation between the length of the pulsation period and the presence of the Blazhko effect in RRab stars was searched for by comparing the period distributions of each of the aforementioned groups of stars to the period distribution of a sample of nonvariable period RRab stars. From the analysis of the data, the mean periods for each of these groups appear to be significantly different from the mean period of the nonvariable period RRab stars.
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