Powerful Solar Flares of September 2017: Correspondence Between Parameters of Microwave Bursts and Proton Fluxes near Earth

Abstract

In this note, we consider radio characteristics of three proton flares that caused discrete enhancements of solar energetic particles (SEPs) near Earth. The analysis confirmed that the flux density and frequency spectrum of microwave bursts, although the latter are generated by electrons propagating to the photosphere, reflect the number and energy spectrum of accelerated particles, including the 10-100 MeV protons coming to Earth.

3 pages, 1 figure

References in corpus (1)

• Block-induced complex structures building the flare-productive solar active region 12673

Cited by in corpus (3)

• Spectral Analysis of the September 2017 Solar Energetic Particle Events
• Solar Eruptions, Forbush Decreases and Geomagnetic Disturbances from Outstanding Active Region 12673
• The magnetic field environment of active region 12673 that produced the energetic particle events of September 2017