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Numerical simulations of ultraviolet and X-ray microflares

  • III. Magnetic Flux Emergence and Preflare States
  • Conference paper
  • First Online:
Flare Physics in Solar Activity Maximum 22

Part of the book series: Lecture Notes in Physics ((LNP,volume 387))

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Abstract

A series of numerical simulations indicates that thermal energy releases of ≈ 1025 - 1027 ergs in the middle chromosphere can produce ejections into the corona in the form of pressure gradient generated jets, jets with pressure gradient and shock generated components, or high speed gas plugs. Heating of the chromosphere to X-ray emitting temperatures occurs in association with gas plugs, perhaps generating X-ray microflares observable by Solar-A. Chromospheric UV-microflares can occur in association with some jets, but do not generally occur with spicules.

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Author information

Authors and Affiliations

  1. National Astronomical Observatory, 181, Mitaka, Tokyo, Japan

    A. C. Sterling

  2. Dept. of Earth Sciences, Aichi Univ. of Education, 448, Kariya, Aichi, Japan

    K. Shibata

  3. Naval Research Laboratory, Code 4175, E. O. Hulburt Center for Space Research, 20375-5000, Washington, D.C., USA

    J. T. Mariska

Authors
  1. A. C. Sterling
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  2. K. Shibata
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  3. J. T. Mariska
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Editor information

Yutaka Uchida Richard C. Canfield Tetsuya Watanabe Eijiro Hiei

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© 1991 Springer-Verlag

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Sterling, A.C., Shibata, K., Mariska, J.T. (1991). Numerical simulations of ultraviolet and X-ray microflares. In: Uchida, Y., Canfield, R.C., Watanabe, T., Hiei, E. (eds) Flare Physics in Solar Activity Maximum 22. Lecture Notes in Physics, vol 387. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0032618

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  • DOI: https://doi.org/10.1007/BFb0032618

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-54383-1

  • Online ISBN: 978-3-540-47596-5

  • eBook Packages: Springer Book Archive

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