HR: 14:00h
AN: SH22A-05 INVITED     [Abstracts]
TI: What can we learn from the dynamical evolution of hard X-ray images and spectra in solar flares?
AU: * Grigis, P C
EM: pgrigis@astro.phys.ethz.ch
AF: ETH Zurich Institute of Astronomy, Scheuchzerstrasse 7, Zurich, 8092, Switzerland
AB: The Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) has observed the hard X-ray emission from the Sun for more than 5 years. Imaging spectroscopy results show that solar flares are not static phenomena: both the spatial configuration and the spectral properties of the different hard X-ray sources can undergo severe changes during the course of the event. The study of the interplay between the sources and their spectral evolution deliver new insights into the particle acceleration and transport mechanism. I will review the main results from time-dependent imaging spectroscopy and their implications for theoretical understanding and modeling of solar flares.
DE: 7509 Corona
DE: 7514 Energetic particles (2114)
DE: 7554 X-rays, gamma rays, and neutrinos
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Joint Assembly