Impulsive solar flare X-rays greater than 10 keV and some characteristics of cosmic gamma-ray burstsObservations of impulsive solar flare X-rays greater than 10 keV are summarized and their interpretation in terms of nonthermal and thermal electron spectra is discussed. This is followed by a brief consideration of models of the hard X-ray source and the requirements of the electron acceleration process during the flash phase of solar flares. Finally, the characteristics of the recently discovered cosmic gamma-ray bursts are compared with those of the impulsive solar X-ray bursts. If both types of emissions are interpreted as bremsstrahlung from energetic electrons, then the electron spectra must be widely different in the two cases. For example, in case of solar flares, most of the energy is carried by electrons with energies of about 5 keV. On the other hand, electrons with kinetic energy of about 300 keV carry most of the energy in the cosmic source.
Document ID
19750051465
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Kane, S. R. (California, University Berkeley, Calif., United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1975
Subject Category
Solar Physics
Meeting Information
Meeting: International Conference on X-Rays in Space - Cosmic, Solar, and Auroral X-Rays, Calgary