Date of Award
9-2021
Document Type
Thesis
Degree Name
Master of Science
Department
Department of Engineering Physics
First Advisor
Daniel J. Emmons, PhD
Abstract
Previous studies have investigated the He/H elemental abundance ratios of Solar Energetic Particle (SEP) Events of energies above 4 MeV. Also, studies have investigated the correlations between SEPs, Coronal Mass Ejections (CME), and Solar Flares. This work finds the correlations between the >4 MeV He/H abundance ratios and the solar parameters from the SEP, CME, and solar flare associated with the abundance increases. 43 SEP events located at solar west longitude are analyzed to find the correlation coefficients. Highly significant correlation was found between the He/H abundance ratios and the following parameters: solar flare flux, solar flare fluence, CME linear speed, and SEP peak intensity. No correlation was found between the He/H abundance ratios and the following parameters: solar longitude, CME width, CME mass, and solar flare duration
AFIT Designator
AFIT-ENP-MS-21-S-025
DTIC Accession Number
AD1149662
Recommended Citation
Davidson, Christopher R., "Relationship between Solar Energetic Particle He/H Abundance Ratios and Properties of Flares and CMES" (2021). Theses and Dissertations. 5077.
https://scholar.afit.edu/etd/5077