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Simultaneous measurements of EUV and soft X-ray solar flare emission

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Abstract

Broadband sensors aboard the Naval Research Laboratory's SOLRAD 11 satellites measured solar emission in the 0.5 to 3 Å, 1 to 8 Å, 8 to 20 Å, 100 to 500 Å, 500 to 800 Å, and 700 to 1030 Å bands between March 1976 and October 1979. Measurements of EUV and soft X-ray emission from a large number of solar flares were obtained. Although solar flare measurements in the soft X-ray bands are continuously made and used as a standard of a flare's geophysical significance, direct measurements of flare EUV emission are quite rare. We present measurements of the X-ray and EUV emission from several flares with special emphasis on the relative EUV response associated with flares in different categories determined by 1 to 8 Å soft X-ray flux. An example of a flare exhibiting an impulsive (nonthermal) phase is included.

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Authors and Affiliations

  1. E. O. Hulburt Center for Space Research, Naval Research Laboratory, 20375, Washington, D.C., U.S.A.

    D. M. Horan & R. W. Kreplin

Authors
  1. D. M. Horan
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  2. R. W. Kreplin
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Proceedings of the 14th ESLAB Symposium on Physics of Solar Variations, 16–19 Semptember 1980, Scheveningen, The Netherlands.

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Horan, D.M., Kreplin, R.W. Simultaneous measurements of EUV and soft X-ray solar flare emission. Sol Phys 74, 265–272 (1981). https://doi.org/10.1007/BF00151295

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  • DOI: https://doi.org/10.1007/BF00151295

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