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The helium-like calcium, silicon, and sulfur lines during the decay of a large flare

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Abstract

Helium-like resonance, intercombination, and forbidden transitions of Ca, Si, and S were observed during the 3b solar flare of 16 November 1967, by means of the NRL Bragg crystal spectrometers aboard OSO-4. During the decay of this flare, the forbidden lines became enhanced relative to the intercombination and resonance lines. Comparisons of the observed line ratios are made with theory and mechanisms are proposed to explain the observations.

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References

  • Burgess, A. and Seaton, M. J.: 1960,Monthly Notices Roy. Astron. Soc. 121, 471.

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  • Gabriel, A. H. and Jordan, C.: 1969a,Monthly Notices Roy. Astron. Soc. 145, 241.

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  • Gabriel, A. H. and Jordan, C.: 1969b, OSO Workshop, Boulder, Colo., August 4–15, 1969.

  • Meekins, J. F., Doschek, G. A., Friedman, H., Chubb, T. A., and Kreplin, R. W.: 1970,Solar Phys. 13, 198.

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Authors and Affiliations

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

    G. A. Doschek & J. F. Meekins

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  1. G. A. Doschek
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  2. J. F. Meekins
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Doschek, G.A., Meekins, J.F. The helium-like calcium, silicon, and sulfur lines during the decay of a large flare. Sol Phys 13, 220–225 (1970). https://doi.org/10.1007/BF00963954

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  • DOI: https://doi.org/10.1007/BF00963954

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