Relationship Between Solar Energetic Particle He/H Abundance Ratios and Properties of Flares and CMEs

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.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2021
Accession Number
AD1149662

Entities

People

  • Christopher R. Davidson

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Coronal Mass Ejections
  • Data Analysis
  • Department Of Defense
  • Detectors
  • Electromagnetic Radiation
  • Engineering
  • Governments
  • Intensity
  • Longitude
  • Magnetic Fields
  • Radiation
  • Solar Activity
  • Solar Flares
  • Solar Wind
  • Space Systems
  • Space Weather
  • Spacecraft
  • Sun
  • United States Government
  • X Rays

Fields of Study

  • Physics

Readers

  • Solar Physics