Chollet, E. E. and Mewaldt, R. A.
(2012)
Heliospheric Transport of Neutron-Decay Protons.
Solar Physics, 281
(1).
pp. 449-459.
ISSN 0038-0938.
doi:10.1007/s11207-012-0082-x.
https://resolver.caltech.edu/CaltechAUTHORS:20120827-074458928
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Abstract
We report on new simulations of the transport of energetic protons originating from the decay of energetic neutrons produced in solar flares. Because the neutrons are fast-moving but insensitive to the solar wind magnetic field, the decay protons are produced over a wide region of space, and they should be detectable by current instruments over a broad range of longitudes for many hours after a sufficiently large gamma-ray flare. Spacecraft closer to the Sun are expected to see orders-of-magnitude higher intensities than those at the Earth-Sun distance. The current solar cycle should present an excellent opportunity to observe neutron-decay protons with multiple spacecraft over different heliographic longitudes and distances from the Sun.
Item Type: | Article |
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Additional Information: | © 2012 Springer Science+Business Media B.V.
Received: 13 January 2012; Accepted: 17 July 2012; Published online: 21 August 2012.
This work was supported by NASA under grants NNX08AI11G and NNX11AO75G, and subcontract SA2715-26309 from UC Berkeley under NASA contract NAS5-03131. We appreciate the assistance of R.A. Leske and C.M.S. Cohen, and discussions with R. Murphy. We also thank the anonymous reviewer for a number of helpful comments and suggestions. |
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Group: | Space Radiation Laboratory |
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Funders: | Funding Agency | Grant Number |
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NASA | NNX08AI11G | NASA | NNX11AO75G | NASA | SA2715-26309 | NASA | NAS5-03131 |
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Subject Keywords: | Flares, energetic particles; Energetic particles, neutrons; Energetic particles, protons; Energetic particles, propagation |
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Other Numbering System: | Other Numbering System Name | Other Numbering System ID |
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Space Radiation Laboratory | 2012-11 |
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Issue or Number: | 1 |
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DOI: | 10.1007/s11207-012-0082-x |
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Record Number: | CaltechAUTHORS:20120827-074458928 |
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Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20120827-074458928 |
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Official Citation: | Chollet, E.E. & Mewaldt, R.A. Sol Phys (2012) 281: 449. https://doi.org/10.1007/s11207-012-0082-x |
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Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. |
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ID Code: | 33540 |
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Collection: | CaltechAUTHORS |
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Deposited By: |
Tony Diaz
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Deposited On: | 05 Sep 2012 21:33 |
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Last Modified: | 09 Nov 2021 21:35 |
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