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Lifetime of solar flare particles in coronal storage regions

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Abstract

Most discussions of lifetime of flare particles in the solar corona have assumed that collision loss is the dominant means of slowing and stopping these particles. The customary formulas used to estimate the rate of collision loss assume individual fast particles interacting with relatively cold matter. However, it is quite possible that the solar cosmic rays are not imbedded in 106 K coronal material but rather all particles in the storage region are energetic. Collision times are sufficiently short so that the energy spectrum may approach a maxwellian distribution with kT on the order of 30 keV. If this is the case, the rate of collision loss will be greatly reduced. Bremsstrahlung and magnetobremsstrahlung then will be the important energy losses. To account for the presence of appreciable numbers of MeV particles, it is probably necessary to postulate the existence of a non-thermal tail in the stored particle distribution.

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References

  • Anderson, K. A.: 1969, Solar Phys. 6, 111.

    Google Scholar 

  • Anderson, K. A., Arnoldy, R., Hoffman, R., Peterson, L., and Winckler, J. R.: 1959, J. Geophys. Res. 64, 1133.

    Google Scholar 

  • Anderson, K. A. and Enemark, D. C.: 1960, J. Geophys. Res. 65, 2657.

    Google Scholar 

  • Boischot, A. and Denisse, J. F.; 1957, Compt. Rend. 245, 2199.

    Google Scholar 

  • Fan, C. Y., Pick, M., Pyle, R., Simpson, J. A., and Smith, D. R.: 1968, J. Geophys. Res. 73, 1555.

    Google Scholar 

  • Hayakawa, S. and Kitao, K.: 1965, Prog. Theoret. Phys. Japan 16, 139.

    Google Scholar 

  • Kinsey, J. H.: 1969, Ph.D. Thesis, University of Maryland.

  • Krimigis, S. M. and Verzariu, P.: 1971, J. Geophys. Res. 76, 792.

    Google Scholar 

  • McDonald, F. B. and Desai, U. D.: 1971, J. Geophys. Res. 76, 808.

    Google Scholar 

  • Meyer, P., Parker, E. N., and Simpson, J. A.: 1956, Phys. Rev. 104, 768.

    Google Scholar 

  • Simnett, G. M.: 1971, Solar Phys. 20, 448.

    Google Scholar 

  • Simnett, G. M. and Holt, S. S.: 1971, Solar Phys. 16, 208.

    Google Scholar 

  • Spitzer, L.: 1956, Physics of Fully Ionized Gases, Wiley-Interscience, New York.

    Google Scholar 

  • Tverskoy, B. A.: 1971, Proc. of the Leningrad Seminar.

  • Wild, P., Smerd, S. F., and Weiss, A. A.: 1963, Ann. Rev. Astron. Astrophys. 1, 291.

    Google Scholar 

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  1. Physics Dept. and Space Sciences Laboratory, University of California, 94720, Berkeley, Calif., U.S.A.

    Kinsey A. Anderson

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  1. Kinsey A. Anderson
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Anderson, K.A. Lifetime of solar flare particles in coronal storage regions. Sol Phys 27, 442–445 (1972). https://doi.org/10.1007/BF00153115

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  • DOI: https://doi.org/10.1007/BF00153115

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