Investigation of the possible source for solar energetic particle event of 2017 September 10

Abstract

According to the solar protons' data observed by Geostationary Operational Environmental Satellites (GOES) and neutron monitors on the ground of the Earth, and near-relativistic electrons data measured by the ACE spacecraft, the onset times of protons with different energies and near-relativistic electrons have been estimated and compared with the time of solar soft and hard X-ray and radio burst data. The results show that first arriving relativistic and non-relativistic protons and electrons may be accelerated by the concurrent flare. The results also suggest that release times of protons with different energies may be different, and the protons with lower energy may release earlier than those with higher energy. Some protons accelerated by concurrent flares may be further accelerated by CME-driven shock.

arXiv commentAccepted by RAA

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• Is the enhancement of type II radio bursts during CME interactions related to the associated solar energetic particle event?
• Limb Observations of Global Solar Coronal Extreme-ultraviolet Wavefronts: The Inclination, Kinematics, Coupling with the Expanding Coronal Mass Ejections, and Connection with the Coronal Mass Ejection Driven Shocks
• A study on the dynamic spectral indices for SEP events on 2000 July 14 and 2005 January 20