Energetics and Timing of the Hard and Soft X-Ray Emissions in White Light Flares

Abstract

By comparing the Light curves in optical, hard x-ray, and soft x-ray wavelengths for 8 well-observed flares, we confirm previous results indicating that the white light flare (WLF) is associated with the flare impulsive phase. The WLF emission peaks within seconds after the associated hard x-ray peak, and nearly two minutes before the 1-8 A soft x-ray peak. It is further shown that the peak power in nonthermal electrons above 50 keV is typically an order of magnitude larger, and the power in 1-8 A soft x-rays radiated over 2pi strdn at the time of the WLF peak is an order of magnitude smaller, than the peak WLF power.... Solar flares, White light flares, Solar Hard X-ray Bursts.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1993
Accession Number
ADA267274

Entities

People

  • Donald F. Neidig
  • Sharad R. Kane

Organizations

  • Phillips Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • California
  • Detectors
  • Electrons
  • Emission
  • Hard X Rays
  • Ionization
  • Observatories
  • Physics
  • Soft X Rays
  • Solar Flares
  • Solar Observatories
  • Solar Physics
  • Space Sciences
  • Universities
  • White Light
  • X Rays

Fields of Study

  • Physics

Readers

  • Solar Physics

Technology Areas

  • Microelectronics