Charged-particle acceleration at the heliospheric termination shock

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The paradigm of the diffusive acceleration of pickup ions by the heliospheric termination shock to form the anomalous cosmic rays (ACR) has successfully accounted for many observed features of the ACR, including electrical charge, composition, energy spectrum, time variations and spatial gradients. Recent observations from the Voyager 1 spacecraft as it approaches the heliospheric termination shock, and other data, have forced a more detailed confrontation between this theoretical paradigm and observations. This has provided new insights and constraints concerning the structure of the heliospheric termination shock. In particular, the observed three-dimansional vector anisotropy provides valuable constraints. Here it is shown that all three components of the anisotropy may be understood if the global shape of the termination shock is as expected from simulation and analogy.

Original languageEnglish (US)
Title of host publicationTHE PHYSICS OF COLLISIONLESS SHOCKS
Subtitle of host publication4th Annual IGPP International Astrophysics Conference
Pages283-288
Number of pages6
DOIs
StatePublished - Aug 1 2005
EventTHE PHYSICS OF COLLISIONLESS SHOCKS: 4th Annual IGPP International Astrophysics Conference - Palm Springs, CA, United States
Duration: Feb 26 2005Mar 3 2005

Publication series

NameAIP Conference Proceedings
Volume781
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherTHE PHYSICS OF COLLISIONLESS SHOCKS: 4th Annual IGPP International Astrophysics Conference
CountryUnited States
CityPalm Springs, CA
Period2/26/053/3/05

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Jokipii, J. R. (2005). Charged-particle acceleration at the heliospheric termination shock. In THE PHYSICS OF COLLISIONLESS SHOCKS: 4th Annual IGPP International Astrophysics Conference (pp. 283-288). (AIP Conference Proceedings; Vol. 781). https://doi.org/10.1063/1.2032710