Zusammenfassung
Calculations of the emission spectrum of a homogeneous plane layer of pure
hydrogen plasma taking into account nonlinear effects (the influence of
bremsstrahlung and recombination radiation of the layer itself on its Menzel
factors) Morchenko et al., Ap&SS, Vol. 357, article id. 119 (2015) show that
the blue component of the optical continuum during the impulsive phase of large
flares on dMe stars originates from the near-photospheric layers Grinin and
Sobolev, Afz, Vol. 13, 587 (1977). The gas behind the front of a stationary
radiative shock wave propagating in the red dwarf chromosphere toward the
photosphere is not capable of generating the blackbody radiation observed at
the maximum brightness of the flares.
Nutzer