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Interplanetary Diffusion Coefficients for Cosmic Rays

Cummings, A. C. and Stone, E. C. and Vogt, R. E. (1973) Interplanetary Diffusion Coefficients for Cosmic Rays. In: Proceedings of the 13th International Cosmic Ray Conference. Vol.2. Colorado Associated University Press , Denver, CO, pp. 772-776. https://resolver.caltech.edu/CaltechAUTHORS:20140409-090931878

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Abstract

Information on the cosmic-ray diffusion coefficient, κ, derived from near-Earth observations of the solar modulation of galactic electron fluxes and from the near-Earth power spectra of the interplanetary magnetic field, has been used to study the heliocentric radial dependence of κ and to derive limits on the spatial extent of the solar modulation region. Representing κ as a separable function of radius r and rigidity, and assuming κ(r) ∝ r^n, we can place a limit on the power law exponent, n ≾ 1.2. The distance of the modulation boundary is a function of n, and, e.g., for n = 0, falls into the range of 6-25 AU.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://adsabs.harvard.edu/abs/1973ICRC....2..772CADSArticle
ORCID:
AuthorORCID
Cummings, A. C.0000-0002-3840-7696
Stone, E. C.0000-0002-2010-5462
Additional Information:© 1973 University of Colorado. Provided by the NASA Astrophysics Data System. This work supported by the National Aeronautics and Space Administration, Grant NGR 05-002-160. One of us (Stone) was an Alfred P. Sloan research fellow, and another (Cummings) was a NASA Trainee during this work.
Group:Space Radiation Laboratory
Funders:
Funding AgencyGrant Number
NASANGR 05-002-160
Alfred P. Sloan FoundationUNSPECIFIED
NASA TraineeshipUNSPECIFIED
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory1973-10
Record Number:CaltechAUTHORS:20140409-090931878
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140409-090931878
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:44810
Collection:CaltechAUTHORS
Deposited By: SWORD User
Deposited On:10 Apr 2014 21:47
Last Modified:20 Feb 2020 14:33

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