Soft and hard X-ray emission from solar flares observed by Solar X-ray Spectrometer (SOXS) mission
Abstract
Solar X-ray Spectrometer SOXS mission was launched on 08 May 2003 onboard Indian spacecraft to study the energy release and particle acceleration in solar flares in the energy range 4-55 keV To achieve the high spectral resolution Si and CZT detectors were employed We present the temporal and spectral characteristics of soft and hard X-ray emission from 18 M-class flares observed by SOXS mission during 2003 and 2005 We present the line emission characteristics of Fe and Fe Ni features and show the variation of equivalent width and peak energy as a function of temperature which is interpreted as emission contribution of different ionic lines vary with temperature The hard X-ray spectra enabled us to measure the break energy between thermal and non-thermal components as a function of flare duration that allowing determining the contribution of accelerated particles in the flares We also analyzed a few flares associated with CMEs and found that the associated CME is the cause for the flare and not the consequence of the flare
- Publication:
-
36th COSPAR Scientific Assembly
- Pub Date:
- 2006
- Bibcode:
- 2006cosp...36..635J