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A unified transport equation for both cosmic rays and thermal particlesWe present a unified transport equation that is valid for particles of all energies if the particle mean free paths are much smaller than macroscopic fluid length scales. If restricted to particles with random speeds much greater than fluid flow speeds, this equation reduces to the previously discussed extended cosmic-ray transport equation. It is significant that this allows one to describe the acceleration of particles from thermal energies to cosmic-ray energies using one transport equation. This is in contrast to previous transport equations (the Parker equation and the extended cosmic-ray transport equation), which were restricted to fast particles. The close connection to the extended cosmic-ray transport equation is demonstrated.
Document ID
19930047869
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Williams, L. L.
(Arizona Univ. Tucson, United States)
Schwadron, N.
(Michigan Univ. Ann Arbor, United States)
Jokipii, J. R.
(Arizona Univ. Tucson, United States)
Gombosi, T. I.
(Michigan Univ. Ann Arbor, United States)
Date Acquired
August 16, 2013
Publication Date
March 10, 1993
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters
Volume: 405
Issue: 2
ISSN: 0004-637X
Subject Category
Space Radiation
Accession Number
93A31866
Funding Number(s)
CONTRACT_GRANT: NSG-7101
CONTRACT_GRANT: NSF ATM-86-18260
CONTRACT_GRANT: NAGW-1366
CONTRACT_GRANT: NSF AST-90-15928
Distribution Limits
Public
Copyright
Other

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