Solar Physics

, Volume 43, Issue 2, pp 405–414 | Cite as

The solar-flare infrared continuum

  • K. Ohki
  • H. S. Hudson


We consider potential sources of infrared (1 μ to 1 mm) continuum in solar flares. Several mechanisms should produce detectable fluxes: in the 350 μ window for ground-based observations, impulsive emission will arise in synchrotron radiation from 1–10 MeV electrons, and possibly thermal (free-free) continuum from the source of the white-light flare; the hot flare plasma responsible for soft X-ray emission will also emit detectable fluxes of free-free continuum in the largest flares. At shorter wavelengths the dominant infrared emission will come from the Hα flare itself. Observations in the infrared wavelengths will help to complete our picture of flare structure in both the impulsive and gradual phases.


Flare Short Wavelength Synchrotron Radiation Solar Flare Infrared Emission 
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Copyright information

© D. Reidel Publishing Company 1975

Authors and Affiliations

  • K. Ohki
    • 1
  • H. S. Hudson
    • 2
  1. 1.Tokyo Astronomical ObservatoryTokyoJapan
  2. 2.Department of PhysicsUniversity of CaliforniaSan Diego, La JollaU.S.A.

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