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Anomalous Cosmic Rays outside of the Termination Shock

Abstract : Anomalous Cosmic Rays (ACR) are most probably generated at the solar wind termi- nation shock. When observed in the region inside the shock, the ACR energy spectrum is significantly modulated. The region outside the shock is so far inaccessible to obser- vations. However, the low energy (~ 100 keV) part of the spectrum beyond the shock could be sampled by means of energetic neutral atoms (ENA), into which the ACR ions convert by charge-exchange with the neutral atoms. As the distribution of ACR reflects the large-scale structure of the heliosphere, this offers a possibility of imaging the outer heliosphere by ENA from this source.
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https://hal-insu.archives-ouvertes.fr/insu-03581526
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Submitted on : Saturday, February 19, 2022 - 8:42:59 PM
Last modification on : Monday, February 21, 2022 - 3:28:12 AM

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A. Czechowski, S. Grzedzielski, H. Fichtner, M. Hilchenbach, K.C. Hsieh. Anomalous Cosmic Rays outside of the Termination Shock. The Outer Heliosphere: The Next Frontiers, Proceedings of the COSPAR Colloquium Volume 11, 2000, Potsdam, Germany. pp.199-202, ⟨10.1016/S0964-2749(01)80039-1⟩. ⟨insu-03581526⟩

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