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A Comparison of Models of Cosmic-Ray Source Composition

Silberberg, R. and Tsao, C.H. and Barghouty, A. F. (1999) A Comparison of Models of Cosmic-Ray Source Composition. In: Proceedings of the 26th International Cosmic Ray Conference. Vol.4. International Union of Pure and Applied Physics , pp. 152-155.

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Several models for the origin of cosmic rays have been proposed to explain the relative differences of cosmic-ray source abundances and the general abundances of elements and isotopes. One model, for example, assumes injection at normal stars like the sun, using FIP-modified coronal rather than photospheric abundances. Another with acceleration and breakup of grains by supernova shock waves has been popular with several authors. On the basis of the known abundances of few elements, we demonstrate how a critical evaluation of one model's merits against the others can be made.

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Additional Information:© University of Utah. Provided by the NASA Astrophysics Data System. The work has been supported by NASA grants NAG5-5053 and NAG5-5165, and NASA-JOVE grant no. NAG8-1208 (AFB). The authors are also grateful for the use of computer facilities at the Naval Research Laboratory, Washington, D.C.
Group:Space Radiation Laboratory
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Space Radiation Laboratory1999-38
Record Number:CaltechAUTHORS:20150213-105717226
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:54832
Deposited By: Deborah Miles
Deposited On:20 Feb 2015 02:20
Last Modified:03 Oct 2019 08:01

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