An optical flare on YZ CMi.|
Gunn A. G., Doyle J.G., Mathioudakis M. & Avgoloupis S.,
A & A, 1994, 285, 187.
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ABSTRACT. We present and discuss observations of an energetic
optical flare on the dM4.5e star YZ CMi (Gl 285). The flux-time
variations and energy release of the flare are fully consistent with
previous observations of this star. The observations have also
revealed a symmetric excess emission in the bases of the chromospheric
Balmer lines. If due to a bulk plasma motion event, the maximum
extension in the Balmer wings represents a Doppler velocity of
approximately 250 km/s.