Research Fig.13a:
Theoretical flux densities due to recombination (thick solid curve, displaced upwards by 8 orders of magnitude)
and cascading (thin solid curve) within (half) a spherical shell (R=7*10
5km, ΔR=10
5 km) of a plasma of density N
p=5*10
8cm
-3, an average electron energy of 0.5 Ry and an ion temperature of T=10
6 oK at a distance from the earth D=1.5*10
8 km (i.e. corresponding to the lower
solar corona) for frequencies from 10
7 to 10
10 Hz. The dashed curve (which is shown here displaced upwards by 8 orders of magnitude) gives the cascade emission if no radiative enhancement due to level broadening by plasma field fluctuations is assumed.
The result shows good agreement with experimentally obtained solar flux values for frequencies around 200 Mhz (see
FIG.13b).
