Are those flares periodic?

Details Are those flares periodic? Are those flares periodic?

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990iraj...19..161k&link_type=abstract

Irish Astronomical Journal (ISSN 0021-1052), vol. 19, Mar.-Sept. 1990, p. 161-167.

Mathematics

Probability

Periodic Variations, Stellar Flares, Approximation, Probability Theory

Scientific paper

The probability of a regular pattern in observed four flares separated by 49, 51, and 44 minutes in the eclipsing binary YY Gem is considered. Two approaches are employed: the first assuming that the intervals between successive events are independent, and the second assuming that all the intermediate flares are uniformly distributed between the two end ones. The issue of a 'dead period' when the telescope is pointing off the star is addressed. The probability of a more regular pattern than the actual sample is found to be 0.0047 by the first method and 0.0069 by the second method. Generalization of the case of four flares to the case of five flares is also presented.

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