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Voyager observations of energetic particles near the solar wind termination shock

Stone, E. C. and Cummings, A. C. and McDonald, F. B. and Heikkila, B. C. and Lal, N. and Webber, W. R. (2007) Voyager observations of energetic particles near the solar wind termination shock. In: Proceedings of the 30th International Cosmic Ray Conference. Vol.1. Universidad Nacional Autónoma de México , Merida, Yucatan, Mexico, pp. 831-834.

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Voyager 1 is observing the energy spectra of anomalous cosmic ray H, He, and O in the heliosheath. The relative abundance of H/He is 20 at 1-1.5 MeV/nuc, indicating that H pickup ions are more efficiently accelerated than was modeled from observations at higher energies. Voyager 2 began observing upstream energetic ions from the shock in late 2004 at ∼75 AU, about 10 AU closer to the Sun than observed by Voyager 1. Voyager 2 will be at 84.7 AU at the end of 2007 and may have crossed the termination shock.

Item Type:Book Section
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URLURL TypeDescription
Stone, E. C.0000-0002-2010-5462
Cummings, A. C.0000-0002-3840-7696
Additional Information:Copyright Universidad Nacional Autónoma de México We thank the Voyager Low Energy Charge Particle team for the use of their data in Figure 3. This work was supported under contract NAS7-03001.
Group:Space Radiation Laboratory
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Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory2008-19
Record Number:CaltechAUTHORS:20150501-110503078
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:57148
Deposited By: Deborah Miles
Deposited On:02 Jun 2015 01:58
Last Modified:20 Feb 2020 14:33

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