Neupert effect in solar flares
Abstract
Tha data obtained with Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) were used to investigate the Neupert effect in a few solar flares. RHESSI is capable to observe the X-ray emission with high time resolution within a very wide energy range (from 3 keV to 17 MeV) and therefore is exceptionally useful to analyse this effect. We used the observations of rather strong events, where the X-ray flux was detected by RHESSI up to high energies. We analysed the time profiles of 'soft' and 'hard' X-ray fluxes observed in diferent energy bands. Our analysis indicates that the time derivatives of X-ray fluxes in low-energy channels are in general agreement with the time profiles of hard X-ray emission observed by RHESSI above 30 keV. The results support the previous analysis of Neupert effect based on the observations obtained with YOHKOH satellite.
- Publication:
-
35th COSPAR Scientific Assembly
- Pub Date:
- 2004
- Bibcode:
- 2004cosp...35.2204B