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Gamma-ray lines and neutrons from solar flaresThe energy spectrum of accelerated protons and nuclei at the site of a limb flare was derived by a technique, using observations of the time dependent flux of high energy neutrons at the Earth. This energy spectrum is very similar to the energy spectra of 7 disk flares for which the accelerated particle spectra was previously derived using observations of 4 to 7 MeV to 2.223 MeV fluence ratios. The implied spectra for all of these flares are too steep to produce any significant amount of radiation from pi meson decay. It is suggested that the observed 10 MeV gamma rays from the flare are bremsstrahlung of relativistic electrons.
Document ID
19830011424
Acquisition Source
Legacy CDMS
Document Type
Preprint (Draft being sent to journal)
Authors
Ramaty, R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Murphy, R. J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kozlovsky, B. (Tel-Aviv Univ. San Diego, La Jolla, United States)
Lingenfelter, R. E. (California Univ.)
Date Acquired
September 4, 2013
Publication Date
January 1, 1983
Subject Category
Solar Physics
Report/Patent Number
NASA-TM-84968
NAS 1.15:84968
Meeting Information
Meeting: US-Japan Symp.
Start Date: October 1, 1982
Accession Number
83N19695
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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