Mishev, A. & Usoskin, I. Sol Phys (2016) 291: 1225. https://doi.org/10.1007/s11207-016-0877-2 Analysis of the ground-level enhancements on 14 July 2000 and 13 December 2006 using neutron monitor data |
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Author: | Mishev, A.1; Usoskin, I.1,2 |
Organizations: |
1ReSolve Center of Excellence, University of Oulu, Oulu, Finland 2Sodankylä Geophysical Observatory (Oulu unit), University of Oulu, Oulu, Finland |
Format: | article |
Version: | accepted version |
Access: | open |
Online Access: | PDF Full Text (PDF, 0.5 MB) |
Persistent link: | http://urn.fi/urn:nbn:fi-fe201708118088 |
Language: | English |
Published: |
Springer Nature,
2016
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Publish Date: | 2017-03-22 |
Description: |
AbstractOn the basis of neutron monitor data, we estimate the energy spectrum, anisotropy axis direction, and pitch-angle distribution of solar energetic particles during two major ground-level enhancements (GLE 59 on 14 July 2000 and GLE 70 on 13 December 2006). For the analysis we used a newly computed neutron monitor yield function. The method consists of several consecutive steps: definition of the asymptotic viewing cones of neutron monitor stations considered for the data analysis by computing the cosmic ray particle propagation in a model magnetosphere with the MAGNETOCOSMICS code, computing the neutron monitor model responses, and deriving the solar energetic particle characteristics on the basis of inverse problem solution. The pitch-angle distribution and rigidity spectrum of high-energy protons are obtained as a function of time in the course of ground-level enhancements. A comparison with previously reported results is performed and reasonable agreement is achieved. A discussion of the obtained results is included. An erratum to this article can be found at http://dx.doi.org/10.1007/s11207-016-0937-7 see all
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Series: |
Solar physics |
ISSN: | 0038-0938 |
ISSN-E: | 1573-093X |
ISSN-L: | 0038-0938 |
Volume: | 291 |
Issue: | 4 |
Pages: | 1225 - 1239 |
DOI: | 10.1007/s11207-016-0877-2 |
OADOI: | https://oadoi.org/10.1007/s11207-016-0877-2 |
Type of Publication: |
A1 Journal article – refereed |
Field of Science: |
115 Astronomy and space science |
Subjects: | |
Funding: |
This work was supported by the Center of Excellence ReSoLVE (project No.
272157). |
Academy of Finland Grant Number: |
272157 |
Detailed Information: |
272157 (Academy of Finland Funding decision) |
Copyright information: |
© Springer Science+Business Media Dordrecht 2016. Published in this repository with the kind permission of the publisher. |