Space Science Reviews

, Volume 8, Issue 5–6, pp 750–803

Magnetospheric cosmic-ray cutoffs and their variations

  • David J. Hofmann
  • Herbert H. Sauer
Article

Abstract

Many observations of geomagnetic cutoff phenomena and their implications with respect to the dynamics of charged particles in the geomagnetic field are discussed. Störmer's analytic treatment of the motion of charged particles in a dipole field is briefly reviewed, as are the approximate treatments of charged particle motions, first developed by Alfvén, which were to find successful application to the more complex fields now known to exist in the magnetosphere. In conclusion, the present understanding of geomagnetic cutoffs, together with some remaining areas of uncertainty are examined.

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References

  1. Adams, G. W. and A. J.Masley: 1966, Planetary Space Sci. 14, 277.Google Scholar
  2. Akasofu, S.-I.: 1963, Space Sci. Rev. 2, 91.Google Scholar
  3. Akasofu, S.-I.: 1964a, Planetary Space Sci. 12, 273.Google Scholar
  4. Akasofu, S.-I.: 1964b, Planetary Space Sci. 12, 573.Google Scholar
  5. Akasofu, S.-I.: 1965, Planetary Space Sci. 13, 297.Google Scholar
  6. Akasofu, S.-I.: 1966, Planetary Space Sci. 14, 587.Google Scholar
  7. Akasofu, S.-I. and S.Chapman: 1961a, Phil. Trans. Roy. Soc. London, A 253, 359.Google Scholar
  8. Akasofu, S.-I. and S.Chapman: 1961b, J. Geophys. Res. 66, 1321.Google Scholar
  9. Akasofu, S.-I. and W. C.Lin: 1963a, J. Geophys. Res. 68, 973.Google Scholar
  10. Akasofu, S.-I., J. C.Cain, and S.Chapman: 1962, J. Geophys. Res. 67, 2645.Google Scholar
  11. Akasofu, S.-I., W. C.Lin, and J. A.VanAllen: 1963b, J. Geophys. Res. 68, 5327.Google Scholar
  12. Alfvén, H.: 1950, Cosmical Electrodynamics. Clarendon Press, Oxford.Google Scholar
  13. Anderson, K. A.: 1958, Phys. Rev. Letters 1, 335.Google Scholar
  14. Anderson, K. A.: 1965, J. Geophys. Res. 70, 4741.Google Scholar
  15. Armstrong, T.: 1965, J. Geophys. Res. 70, 2077.Google Scholar
  16. Bailey, D. K.: 1957, J. Geophys. Res. 62, 431.Google Scholar
  17. Bailey, D. K.: 1964, Planetary Space Sci. 12, 495.Google Scholar
  18. Bailey, D. K. and J. M.Harrington: 1962, J. Phys. Soc. Japan, Suppl. A-II 17, 334.Google Scholar
  19. Beard, D. B.: 1960, J. Geophys. Res. 65, 3559.Google Scholar
  20. Beard, D. B.: 1962, J. Geophys. Res. 67, 477.Google Scholar
  21. Biermann, L.: 1951, Z. Astrophys. 29, 274.Google Scholar
  22. Birkeland, Kr.: 1908, The Norwegian Aurora Polaris Expedition, 1902–1903, vol. I (First Sect. 1908, second Sect. 1913). H. Aschehoug & Co., Christiana.Google Scholar
  23. Biswas, S., P. S.Freier, and W.Stein: 1962, J. Geophys. Res. 67, 13.Google Scholar
  24. Blake, J. B., Paulikas, G. A., and Freden, S. C.: 1968, J. Geophys. Res. 73, 4927.Google Scholar
  25. Cahill, L. J.: 1966, J. Geophys. Res. 71, 4505.Google Scholar
  26. Cahill, L. J. and P. G.Amazeen: 1963, J. Geophys. Res. 68, 1835.Google Scholar
  27. Cahill, L. J. and D. H.Bailey: 1965, Trans. Am. Geophys. Union 46, 116.Google Scholar
  28. Cahill, L. J. and D. H.Bailey: 1967, J. Geophys. Res. 72, 159.Google Scholar
  29. Cain, J. C.: 1966, Radiation Trapped in the Earth's Magnetic Field (ed. by Billy M. McCormac). D. Reidel, Dordrecht, Holland, p. 1.Google Scholar
  30. Cain, J. C., W. E.Daniels, and S. J.Hendricks: 1965, J. Geophys. Res. 70, 3649.Google Scholar
  31. Cain, J. C., S. J. Hendricks, R. A. Langel, and W. V. Hudson: 1967, NASA Report # X-612-67-173.Google Scholar
  32. Chamberlain, J. W.: 1964, Documents on Modern Physics; Motion of Charged Particles in The Earth's Magnetic Field, Gordon and Breach, New York.Google Scholar
  33. Chandrasekhar, S.: 1960, Plasma Physics. University of Chicago Press, Chicago.Google Scholar
  34. Chapman, S. and V. C. A.Ferraro: 1931, Terr. Mag. Atmos. Elect. 36, 77 and 171.Google Scholar
  35. Chapman, S. and V. C. A.Ferraro: 1933, Terr. Mag. Atmos. Elect. 38, 79.Google Scholar
  36. Chapman, S., P. C.Kendall, P. N.Swartzerauber, and D. W.Windle: 1968, Geophys. J. 15, 317.Google Scholar
  37. Clay, J.: 1927, Proc. Acad. Sci. Amsterdam 30, 1115.Google Scholar
  38. Cole, K. D.: 1967, in Physics of Geomagnetic Phenomena (ed. by S. Matsushita and W. H. Campbell). Academic Press, New York.Google Scholar
  39. Compton, A. H.: 1933, Phys. Rev. 43, 387.Google Scholar
  40. Compton, A. H. and R.Turner: 1937, Phys. Rev. 52, 799.Google Scholar
  41. Cummings, W. D.: 1966, J. Geophys. Res. 71, 4495.Google Scholar
  42. Davis, L. R. and J. M.Williamson: 1963, Space Res. 3, 365.Google Scholar
  43. Davis, L. R., C. E.Fichtel, D. E.Guss, and K. W.Ogilvie: 1961, Phys. Rev. Letters 6, 492.Google Scholar
  44. Dolginov, Sh. Sh., E. G. Yeroshenko, and L. N. Zhugov: 1966, Space Res. 6.Google Scholar
  45. Dolginov, Sh. Sh., E. G. Yeroshenko, L. N. Zhugov, N. V. Pushkov, and L. O. Tyurmina: 1961, in Artificial Earth Satellites, vols. 3, 4, and 5 (ed. by L. V. Kurnosova). Plenum Press, New York, pp. 490–502.Google Scholar
  46. Dungey, J. W.: J. Geophys. Res. 66, 1043.Google Scholar
  47. Dungey, J. W.: 1962, J. Phys. Soc. Japan, Suppl. A-2, 17, 15.Google Scholar
  48. Earl, J. A.: 1961, J. Geophys. Res. 66, 3095.Google Scholar
  49. Earl, J. A.: 1962, J. Geophys. Res. 67, 2107.Google Scholar
  50. Earl, J. A. and T. A. Rygg: 1968, Proc. Int. Conf. on Cosmic Rays, Calgary, Mod. p. 113.Google Scholar
  51. Ehmert, A., H.Erbe, G.Pfotzer, C. D.Anger, and R. R.Brown: 1960, J. Geophys. Res. 65, 2685.Google Scholar
  52. Fairfield, D. H. and N. F.Ness: 1967, J. Geophys. Res. 72, 2379.Google Scholar
  53. Feldstein, Y. I.: 1963, Geomagnetizm i Aeronomiya 3, 227.Google Scholar
  54. Fillius, R. W.: 1968, Univ. Calif. San Diego Res. Rept, UCSD-SP-68-3.Google Scholar
  55. Finch, H. P. and B. R.Leaton: 1957, Monthly Notices Roy. Astron. Soc., Geophys. Suppl. 7, 314.Google Scholar
  56. Fleischer, R. and P. R. Lichtenstein: 1959, Rensselaer Obs. No. 10.Google Scholar
  57. Foster, F. and B. E.Schrautemeier: 1967, Nuovo Cimento 47, 189.Google Scholar
  58. Fowler, P. H. and C. J.Waddington: 1956, Nuovo Cimento 1, 637.Google Scholar
  59. Fowler, P. H., C. J.Waddington, P. S.Freier, J.Naugle, and E. P.Ney: 1957, Phil. Mag. 2, 157.Google Scholar
  60. Frank, L. A.: 1967, J. Geophys. Res. 72, 3753.Google Scholar
  61. Frank, L. A., J. A.VanAllen, and J. D.Craven: 1964, J. Geophys. Res. 69, 3155.Google Scholar
  62. Freier, P. S.: 1962, J. Geophys. Res. 67, 2617.Google Scholar
  63. Freier, P. S. and W. R.Webber: 1963, J. Geophys. Res. 68, 1605.Google Scholar
  64. Freier, P. S., E. P.Ney, and P. H.Fowler: 1958, Nature 183, 1319.Google Scholar
  65. Freier, P. S., E. P.Ney, and J. R.Winckler: 1959, J. Geophys. Res. 64, 685.Google Scholar
  66. Friedland, A. B.: 1967, J. Geophys. Res. 72, 1495.Google Scholar
  67. Fritz, T. A.: 1968, Univ. of Iowa Res. Rept., 68–21.Google Scholar
  68. Gall, R., J.Jiménez, and L.Camacho: 1968, J. Geophys. Res. 73, 1593.Google Scholar
  69. Gold, T.: 1962, Space Sci. Rev. 1, 100.Google Scholar
  70. Gringauz, K.I., V. V.Bezrokikh, V. D.Ozerov, and R. E.Rybchinskii: 1960, Dokl. Akad. Nauk SSSR 131, 1301; English Translation, Soviet Phys. Doklady 5, 361 (1960).Google Scholar
  71. Hatton, C. J.: 1962, Ph.D. Thesis, Department of Physics, The Univ. of Eeeds, Eeeds, England.Google Scholar
  72. Hatton, C. J. and P. L.Marsden: 1962, Phil. Mag. 7, 1145.Google Scholar
  73. Hendricks, S. J. and J. C.Cain: 1966, J. Geophys. Res. 71, 346.Google Scholar
  74. Heppner, J. P., N. F.Ness, C. S.Scearce, and T. L.Skillman: 1963, J. Geophys. Res. 68, 1.Google Scholar
  75. Hess, V. F.: 1912, Physik. Z. 13, 1084.Google Scholar
  76. Hoffman, R. A., L. R.Davis, and J. M.Williamson: 1962, J. Geophys. Res. 67, 5001.Google Scholar
  77. Hofmann, D. J. and J. R.Winckler: 1963, J. Geophys. Res. 68, 2067.Google Scholar
  78. Holt, O.: 1963, Norwegian Def. Res. Est., Rept. #46.Google Scholar
  79. Hones, E. W. Jr.: 1963, J. Geophys. Res. 68, 1209.Google Scholar
  80. Hubach, R. A.: 1961, J. Geophys. Res. 66, 321.Google Scholar
  81. Hultqvist, B.: 1958, Arkiv Geofysik 3, 63.Google Scholar
  82. Hurley, J.: 1961, Phys. Fluids 4, 854.Google Scholar
  83. Hurwitz, L., D. G.Knapp, J. H.Nelson, and D. E.Watson: 1966, J. Geophys. Res. 71, 2373.Google Scholar
  84. Jensen, D. C. and J. C.Cain: 1962, J. Geophys. Res. 67, 3568.Google Scholar
  85. Jensen, D. C. and W. A.Whitaker: 1960, J. Geophys. Res. 65, 2500.Google Scholar
  86. Johnson, F. S.: 1960, J. Geophys. Res. 65, 3049.Google Scholar
  87. Johnson, T. S.: 1938, Rev. Mod. Phys. 10, 193.Google Scholar
  88. Jokipii, J. R., J.L'Heureux, and P.Meyer: 1967, J. Geophys. Res. 72, 4375.Google Scholar
  89. Katz, E., P.Meyer, and J. A.Simpson: 1958, Nuovo Cimento, Suppl. II 8, 277.Google Scholar
  90. Kellogg, P. J. and M.Schwartz: 1959, Nuovo Cimento 13, 761.Google Scholar
  91. Kellogg, P. J. and J. R.Winckler: 1961, J. Geophys. Res. 66, 3991.Google Scholar
  92. Kendall, P. C., S.Chapman, S.-I.Akasofu, and P. N.Swartztrauber: 1966, Geophys. J. 11, 349.Google Scholar
  93. Kodama, M.: 1965, Canadian J. Phys. 43, 836.Google Scholar
  94. Kodama, M. and Y.Miyazaki: 1957, Rept. Iono. Space Res. Japan 11, 99.Google Scholar
  95. Kondo, I.: 1961, Rept. Iono. Space Res. Japan 15, 319.Google Scholar
  96. Kondo, I., K.Nagashima, S.Yoshida, and M.Wada: 1959, Proc. Int. Conf. on Cosmic Rays, Moscow 4, 208.Google Scholar
  97. Leinbach, H.: 1961, Arkiv Geofysik 3, 427.Google Scholar
  98. Leinbach, H.: 1962, Univ. of Alaska, Geophysical Inst. Sci. Rept. No. 3.Google Scholar
  99. Leinbach, H., D.Venkatesan, and R.Parthasarathy: 1965, Planetary Space Sci. 13, 1075.Google Scholar
  100. Eemaitre, G. E. and M. S.Vallarta: 1933, Phys. Rev. 43, 87.Google Scholar
  101. Lemaitre, G. E. and M. S.Vallarta: 1936a, Phys. Rev. 49, 719.Google Scholar
  102. Lemaitre, G. E. and M. S.Vallarta: 1936b, Phys. Rev. 50, 493.Google Scholar
  103. Lin, R. P. and K. A.Anderson: 1966, J. Geophys. Res. 71, 4213.Google Scholar
  104. Lin, W. C. and J. A.VanAllen: 1964, Rendiconti Delia Scuola Internazionale Di Fisica, Enrico Fermi, XXIV Corso, Academic Press, N.Y., London.Google Scholar
  105. Lin, W. C., D.Venkatesan, and J. A.VanAllen: 1963, J. Geophys. Res. 68, 4885.Google Scholar
  106. Lockwood, J. A.: 1960, J. Geophys. Res. 65, 27.Google Scholar
  107. Lockwood, J. A. and H.Razdan: 1963, J. Geophys. Res. 68, 1593.Google Scholar
  108. Making, T.: 1963, Rept. Iono. Space Res. Japan 17, 173.Google Scholar
  109. Marsden, P. L. and J. G.Wilson: 1958, Nuovo Cimento, Suppl. II 8, 228.Google Scholar
  110. Masley, A. J., T. C.May, and J. R.Winckler: 1962, J. Geophys. Res. 67, 3243.Google Scholar
  111. Matsushita, S. and W. H.Campbell: 1967, Physics of Geomagnetic Phenomena. Academic Press, New York.Google Scholar
  112. McCracken, K. G.: 1962, J. Geophys. Res. 67, 435.Google Scholar
  113. McCracken, K. G., Rao, U. R., and Shea, M. A.: August 1962, Tech. Res. Lab. Electron. Tech. Rept. 77.Google Scholar
  114. McDiarmid, I. B. and J. R.Burrows: 1964a, Canadian J. Phys. 42, 616.Google Scholar
  115. McDiarmid, I. B. and J. R.Burrows: 1964b, Canadian J. Phys. 42, 1135.Google Scholar
  116. McDiarmid, I. B. and J. R.Burrows: 1968, Canadian J. Phys. 46, 49.Google Scholar
  117. McDonald, F. B.: 1956, Phys. Rev. 104, 1723.Google Scholar
  118. McDonald, F. B.: 1957, Phys. Rev. 107, 1386.Google Scholar
  119. McIlwain, C. E.: 1961, J. Geophys. Res. 66, 3681.Google Scholar
  120. Mead, G. D.: 1964, J. Geophys. Res. 69, 1181.Google Scholar
  121. Mead, G. D. and D. B.Beard: 1964, J. Geophys. Res. 69, 1169.Google Scholar
  122. Midgley, J. E. and L.Davis Jr.: 1962, J. Geophys. Res. 67, 499.Google Scholar
  123. Millikan, R. A.: 1933, Phys. Rev. 43, 661.Google Scholar
  124. Millikan, R. A. and H. V.Neher: 1936, Phys. Rev. 50, 15.Google Scholar
  125. Neher, H. V.: 1961, J. Geophys. Res. 66, 4007.Google Scholar
  126. Neher, H. V., V. Z.Peterson, and E. A.Stern: 1953, Phys. Rev. 90, 655.Google Scholar
  127. Ness, N. F.: 1965, J. Geophys. Res. 70, 2989.Google Scholar
  128. Ness, N. F.: 1967, Solar-Terrestrial Physics, Academic Press Inc., London, pp. 57–89.Google Scholar
  129. Ness, N. F., C. S.Scearce, and J. B.Seek: 1964, J. Geophys. Res. 69, 3531.Google Scholar
  130. Ness, N. F., C. S.Scearce, J. B.Seek, and J. M.Wilcox: 1966, Space Res. vol. VI, 581.Google Scholar
  131. Ney, E. P. and W. A.Stein: 1962, J. Geophys. Res. 67, 2087.Google Scholar
  132. Ney, E. P., J. R.Winckler, and P. S.Freier: 1959, Phys. Rev. Letters 3, 183.Google Scholar
  133. Nobles, R. A. and C. J.Wolfson: 1968, Trans. Am. Geophys. Union 49, 239.Google Scholar
  134. Northrup, T. G. and E.Teller: 1960, Phys. Rev. 117, 215.Google Scholar
  135. Obayashi, T.: 1959, Rept. Iono. Space Res. Japan 13, 201.Google Scholar
  136. O'brien, B. J.: 1963, J. Geophys. Res. 68, 989.Google Scholar
  137. Ortner, J., B.Hultqvist, R. R.Brown, T. R.Hartz, O.Holt, B.Landmark, J. L.Hook, and H.Leinbach: 1962, J. Geophys. Res. 67, 4169.Google Scholar
  138. Parker, E. N.: 1958, Astrophys. J. 128, 664.Google Scholar
  139. Parker, E. N.: 1962, Space Sci. Rev. 1, 62.Google Scholar
  140. Patel, V. L., and A. J.Dessler: 1966, J. Geophys. Res. 71, 1940.Google Scholar
  141. Paulikas, G. A., J. B.Blake, and S. C.Freden: 1968, J. Geophys. Res. 73, 87.Google Scholar
  142. Paulikas, G. A., S. C.Freden, and J. B.Blake: 1966, J. Geophys. Res. 71, 1795.Google Scholar
  143. Peiper, G. F., Zmuda, A. J., Bostrom, C. O., and O'Brien: 1962, J. Geophys. Res. 67, 4959.Google Scholar
  144. Pfotzer, G.: 1958, Nuovo Cimento, Suppl. II, 220.Google Scholar
  145. Piddington, J. H.: 1960, J. Geophys. Res. 65, 93.Google Scholar
  146. Piddington, J. H.: 1965, Planet. Space Sci. 13, 363.Google Scholar
  147. Pomerantz, M. A. and S. P.Agarwal: 1962, Phil. Mag. 7, 1503.Google Scholar
  148. Pomerantz, M. A., A. E.Sandstrom, and D. C.Rose: 1958, Nuovo Cimento, Suppl. II 8, 257.Google Scholar
  149. Quenby, J. J. and W. R.Webber: 1959, Phil. Mag. 4, 90.Google Scholar
  150. Quenby, J. J. and J.Wenk: 1962, Phil. Mag. 7, 1457.Google Scholar
  151. Rao, C. S. R.: 1967, Univ. of Iowa Res. Rept. 67-16.Google Scholar
  152. Ray, E. C.: 1956, Phys. Rev., 101, 1142.Google Scholar
  153. Ray, E. C.: 1963, Ann. Phys. 24, 1.Google Scholar
  154. Rees, M. H., A. E.Belon, and G. J.Romick: 1961, Planetary Space Sci. 5, 87.Google Scholar
  155. Reid, G. C. and H.Leinbach: 1959, J. Geophys. Res. 64, 1801.Google Scholar
  156. Reid, G. C. and H.Leinbach: 1962, J. Atmospheric Terrest. Phys. 23, 216.Google Scholar
  157. Reid, G. C. and M. H.Rees: 1961, Planetary Space Sci. 5, 99.Google Scholar
  158. Reid, G. C. and H. H.Sauer: 1967, J. Geophys. Res. 72, 197.Google Scholar
  159. Roederer, J. G.: 1967, J. Geophys. Res. 72, 981.Google Scholar
  160. Roederer, J. G., P. J.Coleman Jr., W. D.Cummings, and M. F.Robbins: 1968, Trans. Am. Geophys. Union 49, 227.Google Scholar
  161. Rose, D. C., K. B.Fenton, J.Katzman, and J. A.Simpson: 1956, Canadian J. Phys. 34, 968.Google Scholar
  162. Rothwell, P.: 1958, Phil. Mag. 3, 961.Google Scholar
  163. Rothwell, P.: 1959, J. Geophys. Res. 64, 2026.Google Scholar
  164. Rothwell, P. and J. J. Quenby: 1958, Nuovo Cimento, Suppl. II, 249.Google Scholar
  165. Rymko, N. P., V. F.Tulinov, and A. N.Charakhchyan: 1959, Soviet Phys. JETP 9, 1202.Google Scholar
  166. sandstrom, A. E.: 1958, Nuovo Cimento, Suppl. II 8, 263.Google Scholar
  167. Sauer, H. H.: 1963, J. Geophys. Res. 68, 957.Google Scholar
  168. Sauer, H. H. and E. C.Ray: 1963, Ann. Phys. 25, 135.Google Scholar
  169. Sawyer, D. M., J. F. Ormes, W. R. Webber, and R. G. Bingham: 1968, Proc. Int. Conf. on Cosmic Rays, Calgary, Mod. p. 105.Google Scholar
  170. Schmidt, A.: 1917, Enzyklopädie der Mathematischen Wissenschaften, Band VI, Leipzig.Google Scholar
  171. Schmidt, A.: 1935, Engelhard-Reyher Verlag, Gotha; Translation: NASA TT-F-8888 (1964).Google Scholar
  172. Schwartz, M.: 1959, Nuovo Cimento, Suppl. II 21.Google Scholar
  173. Sekido, Y., Y.Asano, and T.Masuda: 1943, Sci. Papers Inst. Phys. Chem. Res. 40, 439.Google Scholar
  174. Shea, M. A. and D. F.Smart: 1967, J. Geophys. Res. 72, 2021.Google Scholar
  175. Shea, M. A., D. F.Smart, and K. G.McCracken: 1965, J. Geophys. Res. 70, 4117.Google Scholar
  176. Simpson, J. A.: 1951, Phys. Rev. 83, 1175.Google Scholar
  177. Simpson, J. A.: 1957, Ann Intern. Geophys. Yr. 4, 351.Google Scholar
  178. Simpson, J. A., K. B.Fenton, J.Katzman, and D. C.Rose: 1956, Phys. Rev. 102, 1648.Google Scholar
  179. Skorka, S.: 1958, Z. Physik 151, 630.Google Scholar
  180. Slutz, R. J.: 1962, J. Geophys. Res. 67, 505.Google Scholar
  181. Smart, D. F. and M. A.Shea: 1967, J. Geophys. Res. 72, 3447.Google Scholar
  182. Spitzer, L. Jr.: 1962, Physics of Fully Ionized Gases (2nd ed.). Interscience Publishers, New York.Google Scholar
  183. Spreiter, J. R. and B. R.Briggs: 1962, J. Geophys. Res. 67, 37; 67, 2983.Google Scholar
  184. Steljes, J. F., H.Carmichael, and K. G.McCracken: 1961, J. Geophys. Res. 66, 1363.Google Scholar
  185. Stockard, H. B. and F. G.Woodcock: 1960, Int. Hydr. Rev. 37, 117.Google Scholar
  186. Stone, E. C.: 1964, J. Geophys. Res. 69, 3577.Google Scholar
  187. Storey, J. R., A. G.Fenton, and K. G.McCracken: 1958, Nature 181, 1153.Google Scholar
  188. Störmer, C.: 1955, The Polar Aurora. Oxford University Press, London.Google Scholar
  189. Taylor, H. E.: 1967, J. Geophys. Res. 72, 4467.Google Scholar
  190. Taylor, H. E. and E. W.Hones, Jr.: 1965, J. Geophys. Res. 70, 3605.Google Scholar
  191. Treiman, S. B.: Phys. Rev. 89, 130.Google Scholar
  192. Vestine, E. H., L. Laporte, I. Lange, and W. E. Scott: 1947, Carnegie Inst. of Washington. Publication 580.Google Scholar
  193. Waddington, C. J.: 1956, Nuovo Cimento 3, 930.Google Scholar
  194. Webber, W. R.: 1958, Nuovo Cimento, Suppl. II 8, 532.Google Scholar
  195. Webber, W. R.: 1962, Progress in Elementary Particle and Cosmic Ray Physics, vol. VI. North-Holland Pub. Co., Amsterdam, 77.Google Scholar
  196. Webber, W. R.: 1963, AAS-NASA Symp. on the Phys. of Solar Flares, GSFC, Greenbelt, Md.Google Scholar
  197. Webber, W. R. and F. B.McDonald: 1964, J. Geophys. Res. 69, 3097.Google Scholar
  198. Williams, D. J. and G. D.Mead: 1965, J. Geophys. Res. 70, 3017.Google Scholar
  199. Williams, D. J. and N. F.Ness: 1966, J. Geophys. Res. 71, 5117.Google Scholar
  200. Williams, D. J. and W. F.Palmer: 1965, J. Geophys. Res. 70, 557.Google Scholar
  201. Winckler, J. R. and P. D.Bhavsar: 1960, J. Geophys. Res. 65, 2637.Google Scholar
  202. Winckler, J. R., P. D.Bhavsar, and L.Peterson: 1961b, J. Geophys. Res. 66, 995.Google Scholar
  203. Winckler, J. R., A. J.Masley, and T. C.May: 1961a, J. Geophys. Res. 66, 1023.Google Scholar
  204. Winckler, J. R., P. D.Bhavsar, A. J.Masley, and T. C.May: 1961c, Phys. Rev. Letters 6, 488.Google Scholar
  205. Wolfson, C. J., L. L. Newkirk, R. A. Nobles, G. T. Reynolds, and M. Walt: 1967, Int. Conf. on Cosmic Rays, Calgary, Mod. IV-38B.Google Scholar
  206. Yoshida, S. and M.Wada: 1959, Nature 183, 381.Google Scholar
  207. Yoshida, S., S.-I.Akasofu, and P. C.Kendall: 1968, J. Geophys. Res. 73, 3377.Google Scholar
  208. Zhigulev, V. N.: 1959, Doklady Akad. Nauk SSSR 126, 3; 127, 1001.Google Scholar
  209. Zhigulev, V. N.: 1960, Doklady Akad. Nauk SSSR 135, 1306.Google Scholar

Copyright information

© D. Reidel Publishing Company 1968

Authors and Affiliations

  • David J. Hofmann
    • 1
  • Herbert H. Sauer
    • 2
  1. 1.Department of PhysicsUniversity of WyomingLaramieU.S.A
  2. 2.ESSA Research LaboratoriesBoulderU.S.A

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