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2019
Authors: Qin Murong, Hudson Mary, Kress Brian, Selesnick Richard, Engel Miles, et al.
Title: Investigation of Solar Proton Access into the inner magnetosphere on 11 September 2017
Abstract: In this study, access of solar energetic protons to the inner magnetosphere on 11 September 2017 is investigated by computing the reverse particle trajectories with the Dartmouth geomagnetic cutoff code [Kress et al., 2010]. The maximum and minimum cutoff rigidity at each point along the orbit of Van Allen Probe A is numerically computed by extending the code to calculate cutoff rigidity for particles coming from arbitrary direction. Pulse‐height analyzed (PHA) data has the advantage of providing individual particle energies and effectively excluding background high energy proton contamination. This technique is adopted to study the cutoff locations for solar protons with different energy. The results demonstrate that cutoff latitude is lower for solar protons with higher energy, consist. . .
Date: 04/2019 Publisher: Journal of Geophysical Research: Space Physics DOI: 10.1029/2018JA026380 Available at: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2018JA026380
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