Abstract

AbstractThe upper limits of flare star rotational velocities are evaluated from the photometric features of the stars and on the basis of the widths of the Ha emission line in the quiet chromospheres. The rotational velocity of UV Cet does not exceed 22 km/sec, YZ CMi: 37 km/sec, the valuevsiniof AD Leo does not exceed 52 km/sec, and that of EV Lac: 25 km/sec.

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