Nobeyama Radioheliograph Event 19980831_0506

EventID : norh19980831_0506
Observer : K. Shibasaki and K.Hori
Keyword : Flare + Prominence Eruption
Start : 1998-08-31 05:06:00
Peak : 1998-08-31 End : 1998-08-31 06:36:22
Position : N29W78
GOES : C5.7
NOAA Number : 8307

A C-class flare occurred associated with a prominence eruption.

A collimated feature extended from the limb, then expanded in 30 min. like a balloon anchored at the limb. The top part of the balloon was cut due to FOV limitation. Unwinding motion could be seen in the expansion phase of the balloon.

Full sun 17GHz map. The event region is indicated by the solid box.

Time evolution of the maximum Tb in the box.

Partial image of 17GHz maps.
Mpeg movie (10 min. interval)