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Heliospheric Transport of Neutron-Decay Protons

Chollet, E. E. and Mewaldt, R. A. (2012) Heliospheric Transport of Neutron-Decay Protons. Solar Physics, 281 (1). pp. 449-459. ISSN 0038-0938. 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
Related URLs:
URLURL TypeDescription
https://doi.org/10.1007/s11207-012-0082-x DOIArticle
https://rdcu.be/baUXqPublisherFree ReadCube access
https://arxiv.org/abs/1208.2179arXivDiscussion Paper
ORCID:
AuthorORCID
Mewaldt, R. A.0000-0003-2178-9111
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.
Group:Space Radiation Laboratory
Funders:
Funding AgencyGrant Number
NASANNX08AI11G
NASANNX11AO75G
NASASA2715-26309
NASANAS5-03131
Subject Keywords:Flares, energetic particles; Energetic particles, neutrons; Energetic particles, protons; Energetic particles, propagation
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory2012-11
Issue or Number:1
Record Number:CaltechAUTHORS:20120827-074458928
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20120827-074458928
Official Citation:Chollet, E.E. & Mewaldt, R.A. Sol Phys (2012) 281: 449. https://doi.org/10.1007/s11207-012-0082-x
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:33540
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:05 Sep 2012 21:33
Last Modified:03 Oct 2019 04:10

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