A non-thermal 3-parter?

This observation, provided by Tim Bastian of NRAO, whos home page incidentally has a great filament eruption as its background image. What we show below is an observation from the Nancay radioheliograph, a meter-wave observatory. The images show an unprecedented bubble-like ejection - the interesting thing here is that at these wavelengths, we are quite sure that we are seeing the emission from accelerated particles, ie non-thermal effects. So, the three-part structure, in eruption, seems to involve particle acceleration as well as just mass motions!

The right panel shows radio spectra at the positions indicated. These reveal the non-thermal nature of the emission in the legs of the bubble. This single image does not really do justice to the 3-part structure, so please wait until Tim rushes this important observation into print.