18.06.02
To
study of preflare plasma.
Formation frequency domain with weak polarization.
•Fig. 12
Another example of preflare plasma at microwaves. On the multiwaves
scans two AR’s are presented. Near
the solar meridian the stable AR and near the West-limb the FPAR 9393 are located. The microwave emission of FPAR demonstrates the
frequency domain (the wavelengths from 2.47 cm to 3.21 cm) with low polarization degree, which shown
on the right in big scale also. The sharp structural changes one can see in narrow frequency band.
The powewrful flare X 14.0 occured at April 15, 2001 in 13h50m UT.