A rotational modulation effect in the flare frequency on EV Lac

Details A rotational modulation effect in the flare frequency on EV Lac A rotational modulation effect in the flare frequency on EV Lac

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...177..201d&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 177, no. 1-2, May 1987, p. 201-203.

Astronomy and Astrophysics

Astrophysics

7

Flare Stars, Stellar Flares, Stellar Rotation, Ephemerides, Starspots, Stellar Activity

Scientific paper

Flare monitoring data in the Johnson B-band for the years 1973 to 1982 are discussed in terms of a rotational modulation effect. For the period from 1973 to 1976, a correlation between flare frequency and rotation period is evident, in the sense that a larger than expected number of flares occurs on one hemisphere and a smaller than expected on the other. This correlation is not evident in later years. Photometric observations carried out during the years 1974/76 did not show any evidence of a wavelike variation in the light-curve, which was apparent in later years.

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