BB Nobeyama Radioheliograph Event 19990117_0426

Nobeyama Radioheliograph Event 19990117_0426

EventID : 19990117_0426
Observer : K. Hori
Keyword : Flare
Start : 1999-01-17 04:25:37
Peak : 1999-01-17 04:26:05
End : 1999-01-17 04:28:29
Position: S24E26
Maximum Correlation @17GHz (x10^-4) : 34
GOES: C?.?
NOAA Number: 8439

AR#8439 suddenly became active and caused a short flare at 04:25UT.

Full disk image at 17GHz (04:20:22UT).
FOV of the box is 314" x 314".

Mpeg movie of the box region.

The blue contour in the right source represent where L-R is larger than 10^4 K region (i.e., L polarized source).
It is clear that these two sources are related each other during the flare.

Time evolution of the maximum brightness temperature at 17GHz in the box.
The solid line represents Max(R+L) component, and the dash-dotted line represents Max(L-R) component.
Data points are plotted every 20s.

Type II and III bursts were observed during the flare. From HiRAS(CRL/Hiraiso).