X-Ray and Radio Emission Characteristics of CME Associated Flares producing
Abstract
We present the results of our investigation on the X-ray and Radio Emission Characteristics of 18 geoeffective flares that were associated with Coronal Mass Ejection CME and observed by one of the missions among BATSE YOHKOH and SOXS in X-ray waveband and simultaneous observations made in radio waveband at Nobeyama Radio Observatory during 1997 to 2005 We identified the geoeffective potential flares based on A p index 25 We analyzed X-ray and radio temporal and spectral evolution of these flares and found that their spectra become exceptionally hard over the growth We also compare the results with the flares of similar magnitude but did not produce the geomagnetic effects Based on our analysis and evidence we interpret that in geoeffective flares extraordinary particle acceleration takes place for a long duration and the associated coronal mass ejection CME carries most of early accelerated and energetic particles as well as the magnetized plasma which in turn during the passage in interplanetary space generate further shock so as to enhance the particle velocity and density and thereby to disturb the Earth s magnetic field
- Publication:
-
36th COSPAR Scientific Assembly
- Pub Date:
- 2006
- Bibcode:
- 2006cosp...36..613J