Nobeyama Radioheliograph Event 19990828_0056


EventID : 19990828_0056
Keyword : flare
Observer : KH
Start : 1999-08-28 00:52:28
Peak : 1999-08-28 00:56:41
End : 1999-08-28 01:23:31
Position: S26W16
Maximum Correlation @17GHz (x10^-4) : 485
Maximum Brightness Temperature @17GHz :
GOES: M2.8
NOAA Number: 8674


Different spots in AR 8674 produced flares and bursts again and again.


FOV of the box is 491" x 491".


Time evolution of the maximum Tb.
The solid line shows Max (R+L) and the dotted line shows Max (R-L).
Data points are plotted every 10 min.


Stokes I (R+L) map in the box. The brightness is normalized to the Max Tb in each image.
Mpeg movie (10 min. interval)

The M flare occurred at the extended source (middle image), which suddenly appeared in microwaves, located at the center of the AR. The short R-polarized burst occurred at the compact spot located at the west (right image). The former is bright in both 17 and 34 GHz, while the latter is faint in 34 GHz.
(Which spot produced the X flare at 18:00UT on that day?)