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Origin of cosmic raysA model is presented in which cosmic electrons are produced by pulsars, and cosmic protons and alpha particles are accelerated by shock waves in supernova envelopes. It is argued that neither mechanism by itself can produce both the observed protons and electrons at energies above a few hundred MeV. But supernova accelerated electrons could constitute the majority of cosmic electrons with energy below about 10 MeV.
Document ID
19740027107
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Cohen, J. M. (Pennsylvania Univ. Philadelphia, PA, United States)
Ramaty, R. (Pennsylvania Univ. Philadelphia, PA, United States)
Date Acquired
September 3, 2013
Publication Date
February 27, 1974
Subject Category
Space Radiation
Report/Patent Number
COO-3071-66
UPR-0026T
NASA-CR-140171
Accession Number
74N35220
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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