The cooling of flare produced plasmas in the solar corona |
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| Authors: | J L Culhane J F Vesecky K J H Phillips |
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| Institution: | (1) Mullard Space Science Laboratory, University College, London, England;(2) Lockheed Palo Alto Research Laboratories, 94304 Palo Alto, Calif., U.S.A.;(3) Center for Radar Astronomy, Stanford University, 94305 Stanford, Calif., U.S.A.;(4) Stanford Research Institute, 94025 Menlo Park, Calif., U.S.A.;(5) Mullard Space Science Laboratory, University College, London, England |
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| Abstract: | Solar flare X-rays, at energies less than 10 keV, are emitted by hot plasmas located in the corona. Three plasma cooling models are examined in detail. The cooling of the electrons by Coulomb collisions with ions at a lower temperature would require the observed material to occupy very large volumes. Cooling could take place by conduction or by radiation and observations are proposed which would allow the dominant cooling mechanism to be established.On leave during a portion of this work as University Research Fellow in Astronomy, University of Leicester, England. |
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