Impulsive Solar Flares associated with Coronal Mass Ejections
Abstract
We present the multi-wavelength observations of a few impulsive solar flares, which are associated with Coronal Mass Ejections (CMEs) during Solar Cycle 23. The optical and radio waveband observations of the solar flares considered for this investigation were made in India and Japan, while SOHO, CGRO, YOHKOH and SOXS missions made the other wavelength observations. We present the optical, radio and X-ray emission characteristics of impulsive flares associated with CMEs in view of their energy release and particle acceleration. We conjecture a qualitative model to interpret our multi-spectral observations of these impulsive solar flares. It is proposed that a CME of some magnitude precede the impulsive solar flares to cause strong particle acceleration as observed in them. In support of our this concept we present the magnetograms of the active regions that reveal the cancellation of magnetic flux in all such impulsive events, which in turn results in generating a CME as seen in different wavelengths.
- Publication:
-
35th COSPAR Scientific Assembly
- Pub Date:
- 2004
- Bibcode:
- 2004cosp...35..939J