Magnetic cycles in solar-type single and close binary stars

Details Magnetic cycles in solar-type single and close binary stars Magnetic cycles in solar-type single and close binary stars

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...237..395m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 237, no. 2, Oct. 1990, p. 395-401.

Mathematics

Probability

24

Binary Stars, F Stars, G Stars, K Stars, Stellar Magnetic Fields, Cataclysmic Variables, Probability Density Functions, Statistical Analysis, Symbiotic Stars

Scientific paper

A statistical analysis of magnetic cycle periods from different samples of single and close binary stars is presented. All samples, analyzed by modern statistical methods, show the same cycle period distribution at a high confidence level. The total distribution is compatible with a unimodal function with a peak at about 6 yr. Secondary peaks, typical of some samples, might be due to statistical fluctuations. A correlation is also found between spectral type and cycle period, but apparently no relation exists between the cycle period distribution and the rotational velocity of the stars.

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