On a new class of impulsive flares with no nuclear gamma-ray line emission

Details On a new class of impulsive flares with no nuclear gamma-ray line emission On a new class of impulsive flares with no nuclear gamma-ray line emission

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990soph..129..195b&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 129, Sept. 1990, p. 195-198.

Physics

13

Bremsstrahlung, Electron Energy, Electron Spectroscopy, Gamma Ray Spectra, Line Spectra, Solar Flares, Energetic Particles, Proton Energy, Solar Corona, Solar X-Rays

Scientific paper

A new class of gamma-ray spectra from impulsive flares without nuclear gamma-ray lines is compared with bremsstrahlung spectra of energetic electrons undergoing stochastic acceleration and Coulomb and synchrotron losses. The remarkable agreement of both the produced gamma-ray spectra from the precipitated electrons and the electron spectra measured in interplanetary space leads to the conclusion that seed population and acceleration processes are identical for both classes of electrons. A new estimate of the electron bremmstrahlung contribution in gamma-ray spectra of impulsive solar flares seems to be necessary.

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