Correlative Analysis of Hard and Soft X-Ray Emissions in Solar Flares

Details Correlative Analysis of Hard and Soft X-Ray Emissions in Solar Flares Correlative Analysis of Hard and Soft X-Ray Emissions in Solar Flares

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997arc..reptr....z&link_type=abstract

Technical Report, NASA/CR-97-203898; NAS 1.26:203898; R97-257

Physics

Solar Flares, X Rays, Nonthermal Radiation, Thermal Emission, Gamma Ray Observatory, Plasma Heating, Plasma Cooling, Chromosphere, Evaporation, Electric Fields, Direct Current, Plasma Acceleration, Correlation

Scientific paper

We propose to continue a study that we have commenced under the Cycle 3 and 4 GI programs. Our broad aim is to test flare models by comparing their predictions with simultaneous BATSE hard x-ray and Yohkoh soft x-ray observations. For Cycle 5, we will focus on the hydrodynamic consequences of current heating and runaway acceleration. We will use BATSE spectra in the 20-300 keV range from the Large Area detectors to deduce the nonthermal hard x-ray component that is related to the electron heating rate. We will use Yohkoh soft x-ray data to deduce the thermal heating rate and the plasma cooling rates of the evaporating chromospheric component. By comparing these rates, we will place tighter constraints on the physical parameters that control heating and acceleration in solar flares.

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