Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979ap%26ss..62...45g&link_type=abstract
Astrophysics and Space Science, vol. 62, no. 1, May 1979, p. 45-53.
Astronomy and Astrophysics
Astrophysics
2
Late Stars, Near Infrared Radiation, Spectrum Analysis, Stellar Flares, Stellar Radiation, Stellar Spectra, Bremsstrahlung, Compton Effect, Energetic Particles, Particle Interactions, Ultraviolet Radiation
Scientific paper
The theory of negative IR flares is discussed, and it is suggested that such negative flares may be detected mainly in stars of spectral types M0-K5. Near-IR observations of the flare stars UV Cet and EV Lac are analyzed. It is concluded that: (1) no negative IR flare in the wavelength region around 8000 A has been detected for UV Cet, in accordance with theory; (2) some symptoms of negative IR flares have been detected in faint outbursts of EV Lac; and (3) the amplitudes of recorded positive flares of UV Cet and EV Lac around 8000 A are consistent with predictions of the fast-electron hypothesis.
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