  Main results of researches of the electric erosive discharge afterglow
plasma, of the fireballs being formed by this plasma and having some particular
but deep similarities to the ball lightning are given. The analysis of our
results and results of some other authors has allowed to specify the nature of
radiation and stability of the shape for a dust-gas chemical fireball, to make
series of assumptions concerning the mechanism of these properties. The
experimental results and considerations of the given work can be interesting
for physics of plasma with different kinds of condensed state, for an
ascertainment of the chemiluminescence mechanism of the flame, as well as for a
bead lightning understanding and for improvement of ball lightning laboratory
analogues.
