Peculiar emission lines in the spectrum of the flare star YZ Canis Minoris

Details Peculiar emission lines in the spectrum of the flare star YZ Canis Minoris Peculiar emission lines in the spectrum of the flare star YZ Canis Minoris

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pasp...97..340h&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 97, April 1985, p. 340-344. Research supported by the L

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2

Chromosphere, Emission Spectra, Flare Stars, H Lines, K Lines, Variable Stars, Heao 2, Metallic Stars, Stellar Flares, Stellar Rotation, Stellar Spectrophotometry

Scientific paper

During a series of spectral scans in search of flares on the dMe star YZ CMi the authors observed prominent chromospheric emission lines of Hγ λ4340, Hδ λ4100, Ca II H λ3968 blended with Hɛ λ3970, Ca II K λ3934, and Hζ λ3889. During one five-minute scan the authors recorded the following peculiar transient phenomena: (1) the appearance of an exceptionally strong line at ≡λ4007; (2) the simultaneous appearance of another prominent feature at ≡λ4276; and (3) a change in the ratio of (Ca II H+Hɛ)/Ca II K. The authors discuss the possible origin of this unusual transient spectrum.

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