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Related Experiment Videos

Solar flares: an overview.

D M Rust1

  • 1The Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723-6099, USA.

Advances in Space Research : the Official Journal of the Committee on Space Research (COSPAR)
|January 1, 1992
PubMed
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Improving solar flare and proton storm forecasts requires understanding solar phenomena. Advanced observations reveal proton acceleration mechanisms and interplanetary field influences, crucial for space weather prediction.

Area of Science:

  • * Solar physics
  • * Space weather
  • * Astrophysics

Background:

  • * Solar flares and proton storms pose risks to space missions and Earth.
  • * Previous research utilized gamma-ray and X-ray observations from the Solar Maximum Mission.
  • * Understanding proton acceleration and interplanetary field effects is key to improving forecasts.

Purpose of the Study:

  • * To survey solar phenomena and physical models for enhanced solar flare and proton storm forecasting.
  • * To identify key indicators and observational strategies for predicting energetic particle events.

Main Methods:

  • * Analysis of gamma-ray and X-ray observations from space telescopes.
  • * Examination of X-ray images of the solar corona for particle escape paths.
  • * Study of magnetograph and visible-band images to understand magnetic field structures and solar particle interactions.

Related Experiment Videos

  • * Review of preflare magnetic field growth and shear as potential predictors.

    • Main Results:

    • * Proton acceleration occurs at flare onset; storm duration depends on interplanetary field structure.
    • * Solar corona X-ray images reveal potential pathways for fast proton escape.
    • * Magnetic field configurations, particularly shear, are critical for high-energy particle generation.
    • * Current forecasting methods can be improved with advanced observational techniques.

    Conclusions:

    • * High-resolution space-based solar telescopes are essential for significant forecasting improvements.
    • * Proposed advancements include acoustic tomography, satellite solar magnetographs, and coronal X-ray monitoring.
    • * Integrating knowledge of solar phenomena and magnetic field dynamics is vital for accurate space weather prediction.