The Solar Eruption of 2017 September 10: Wavy with a Chance of Protons
Abstract
High-resolution SUVI images reveal an interesting new picture of particle acceleration in powerful solar eruptions. Typically, powerful solar eruptions include a coronal wave component, as well the traditional CME and flare components. At low solar altitudes, coronal waves refract downward, toward the solar surface, because of the slower Alfvén speeds at the base of the corona. The refracted wave plus the shock wave ahead of an intense CME allow for a two-step shock acceleration process that can result in relativistic or GLE particles. This mechanism may be particularly applicable to the first-to-arrive, prompt relativistic particles measured by the Fort Smith neutron monitor during GLE # 72 on 2017 September 10.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 01, 2022
- Source ID
- 10.3847/1538-4357/ac374d
Entities
People
- C. A. de Koning
- Daniel Seaton
- V. J. Pizzo
Organizations
- Air Force Office of Scientific Research
- National Aeronautics and Space Administration
- National Oceanic and Atmospheric Administration