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Heliospheric Termination Shock Mediation by Anomalous Cosmic Rays: Insights from Recent Voyager Data

Florinski, V. and Jokipii, J. R. and Stone, E. C. and Cummings, A. C. and Zank, G. P. (2003) Heliospheric Termination Shock Mediation by Anomalous Cosmic Rays: Insights from Recent Voyager Data. In: Proceedings of the 28th International Cosmic Ray Conference. Vol.8. International Union of Applied Physics , Tokyo, Japan, pp. 3757-3760.

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The two Voyager spacecraft provide valuable information about the energetic particle population near the termination shock (TS), such as the anomalous cosmic ray (ACR) spectra, the intensity gradients, and the radial diffusion coefficients obtained from anisotropy measurements. While the spectra and gradients have been modeled successfully using the test-particle approach, the shock modification by the ACR pressure gradient has not yet been addressed in the full context of the available data. Here we present the results of a self-consistent axisymmetric model of the solar wind modified by both charge exchange and ACR pressure gradients. Our results indicate that during solar minima anomalous cosmic rays with energies above 100 keV are not likely to have a significant impact on the properties of the termination shock.

Item Type:Book Section
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URLURL TypeDescription
Florinski, V.0000-0001-5485-2872
Stone, E. C.0000-0002-2010-5462
Cummings, A. C.0000-0002-3840-7696
Zank, G. P.0000-0002-4642-6192
Additional Information:Copyright Universal Academy Press Inc.
Group:Space Radiation Laboratory
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Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory2003-37
Record Number:CaltechAUTHORS:20150403-082902784
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:56328
Deposited By: Deborah Miles
Deposited On:14 Apr 2015 23:40
Last Modified:09 Mar 2020 13:19

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