Earth, Moon, and Planets

, Volume 110, Issue 1–2, pp 11–27 | Cite as

Electron Pitch-Angle Diffusion by ECH Waves in Earth and Jupiter Magnetospheres: Contribution to Diffuse Auroral Precipitation

  • A. K. Tripathi
  • R. P. Singhal
  • K. P. Singh
  • O. N. SinghII


Pitch-angle diffusion coefficients of electrons have been calculated for resonant interaction with electrostatic electron-cyclotron harmonic (ECH) waves using quasi linear diffusion theory. Calculations have been performed for the planets Earth and Jupiter at three radial distances for each planet. Electron precipitation fluxes have also been calculated and compared with observed fluxes. At Earth, electrons of energy ≤200 eV may be put on strong diffusion at L = 10. At lower L values, observed ECH wave amplitudes are insufficient to put electrons on strong diffusion. At Jupiter, electrons can be put on strong diffusion at all L values. However, the energy of electrons which may be put on strong diffusion decreases from about 1 keV at L = 7 to ~100 eV at L = 17. It is concluded that ECH waves may be partly responsible for diffuse auroral precipitation of low energy electrons at Jupiter for lower L values. At Earth contribution of ECH waves to diffuse aurora is quite small.


Electrostatic electron cyclotron harmonic wave Wave-particle resonant interaction Diffuse aurora Planetary magnetospheres 


  1. M. Ashour-Abdalla, S.W.H. Cowely, J. Geophys. Res. 83, 1531 (1978)ADSCrossRefGoogle Scholar
  2. F. Bagenal, J. Geophys. Res. 99, 11043–11062 (1994)ADSCrossRefGoogle Scholar
  3. F. Bagenal, F.J. Crary, A.I.F. Stewart et al., Geophys. Res. Lett. 24, 2119–2122 (1997)ADSCrossRefGoogle Scholar
  4. D.D. Barbosa, W.S. Kurth, J. Geophys. Res. 85, 6729–6742 (1980)ADSCrossRefGoogle Scholar
  5. J.W. Belcher in The low-energy plasma in Jovian magnetosphere. Physics of the Jovian Magnetosphere, ed. by A.J. Dessler (Cambridge University Press, New York, 1983), pp. 105Google Scholar
  6. G. Belmont, D. Fontaine, P. Canu, J. Geophys. Res. 88, 9163–9170 (1983)ADSCrossRefGoogle Scholar
  7. B. Bhattacharya, R.M. Thorne, D.J. Williams, K.K. Khurana, D.A. Gurnett, Icarus 178, 406–416 (2005)ADSCrossRefGoogle Scholar
  8. T.J. Birmingham, J.K. Alexander, M.D. Desch, R.F. Hubbard, B.M. Pedersen, J. Geophys. Res. 86, 8497–8507 (1981)ADSCrossRefGoogle Scholar
  9. P.P. Christiansen, G. Gough, J.-J. Martelli, N. Bloch, J. Cornilleau, R. Gendrin, D. Jones, C. Beghin, P. Dercreau, Nature 272, 682–686 (1978)ADSCrossRefGoogle Scholar
  10. P.M.E. Decreau, P. Fergeau, V. Krasnoselskikh, Ann. Geophys. 19, 1241–1258 (2001)ADSCrossRefGoogle Scholar
  11. L.A. Frank, W.R. Paterson, K.L. Ackerson, V.M. Vasyliunas, F.V. Coroniti, S.J. Bolton, Science 274, 394–395 (1996)ADSCrossRefGoogle Scholar
  12. R.W. Fredricks, R.L. Scarf, J. Geophys. Res. 78, 310–314 (1973)ADSCrossRefGoogle Scholar
  13. M.P. Gough, P.J. Christiansen, G. Martelli et al., Nature 279, 515–517 (1979)ADSCrossRefGoogle Scholar
  14. D.A. Gurnett, R.R. Anderson, F.L. Scarf, R.W. Fredricks, E.J. Smith, Space Sci. Rev. 23, 103–122 (1979a)ADSCrossRefGoogle Scholar
  15. D.A. Gurnett, W.S. Kurth, F.L. Scarf, Science 206, 987–991 (1979b)ADSCrossRefGoogle Scholar
  16. D.A. Gurnett, F.L. Scarf, Plasma waves in the Jovian magnetosphere, in Physics of the Jovian magnetosphere, ed. by A.J. Dessler (Cambridge University Press, Cambridge, 1983), p. 285CrossRefGoogle Scholar
  17. D.A. Gurnett, W.S. Kurth, A. Roux, Science 274, 391–393 (1996)ADSCrossRefGoogle Scholar
  18. R.B. Horne, R.M. Thorne, J. Geophys. Res. 105, 5391–5402 (2000)ADSCrossRefGoogle Scholar
  19. R.B. Horne, R.M. Thorne, N.P. Meredith, R.R. Anderson, J. Geophys. Res. 108, A7, 1290 (2003). doi:10.1029/2002JA009736 ADSGoogle Scholar
  20. R.F. Hubbard, T.J. Birmingham, J. Geophys. Res. 83, 4837 (1978)ADSCrossRefGoogle Scholar
  21. R.F. Hubbard, T.J. Birmingham, E.W. Hones, J. Geophys. Res. 84, 5828–5838 (1979)ADSCrossRefGoogle Scholar
  22. C.F. Kennel, H.E. Petschek, J. Geophys. Res. 71, 1–29 (1966)ADSCrossRefGoogle Scholar
  23. C.F. Kennel, F.L. Scarf, R.W. Fredricks, J.H. McGehee, F.V. Coroniti, J. Geophys. Res. 75, 6136–6152 (1970)ADSCrossRefGoogle Scholar
  24. W.S. Kurth, J.D. Craven, L.A. Frank, D.A. Gurnett, J. Geophys. Res. 84, 4145–4164 (1979)ADSCrossRefGoogle Scholar
  25. W.S. Kurth, D.D. Barbosa, D.A. Gurnett, F.L. Scarf, Geophys. Res. Lett. 7, 57–60 (1980)ADSCrossRefGoogle Scholar
  26. W.S. Kurth, D.A. Gurnett, J. Geophys. Res. 96, 18977–18991 (1991)ADSCrossRefGoogle Scholar
  27. L.R. Lyons, J. Geophys. Res. 79, 575–580 (1974)ADSCrossRefGoogle Scholar
  28. L.R. Lyons, J.F. Fennell, J. Geophys. Res. 91, 11225–11234 (1986)ADSCrossRefGoogle Scholar
  29. F. El-Lemdani Mazouz, J.L. Rauch, P.M.E. Decreau, J.G. Trotignon, X. Vallieres, F. Darrouzet, P. Canu, X. Suraud, Adv. Space Res. 43, 253–264 (2009)ADSCrossRefGoogle Scholar
  30. C.I. Meng, B. Mauk, C.E. McIlwain, J. Geophys. Res. 84, 2545–2558 (1979)ADSCrossRefGoogle Scholar
  31. N.P. Meredith, A.D. Johnstone, S. Szita, R.B. Horne, R.R. Anderson, J. Geophys. Res. 104(12), 431–12444 (1999)Google Scholar
  32. N.P. Meredith, R.B. Horne, A.D. Johnstone, R.R. Anderson, J. Geophys. Res. 105, 12907–12917 (2000)ADSCrossRefGoogle Scholar
  33. N.P. Meredith, R.B. Horne, R.M. Thorne, R.R. Anderson, J. Geophys. Res. 114, A07218 (2009). doi:10.1029/2009JA014230 ADSCrossRefGoogle Scholar
  34. B. Ni, R.M. Thorne, Y.Y. Shprits, J. Bortnik, Geophys. Res. Lett. 35, L11106 (2008). doi:10.1029/2008GL034032 ADSCrossRefGoogle Scholar
  35. B. Ni, R.M. Thorne, R.B. Horne, N.P. Meredith, Y.Y. Shprits, L. Chen, W. Li, J. Geophys. Res. 116, A04218 (2011a). doi:10.1029/2010JA016232 ADSCrossRefGoogle Scholar
  36. B. Ni, R.M. Thorne, R.B. Horne, N.P. Meredith, Y.Y. Shprits, J. Geophys. Res. 116, A04219 (2011b). doi:10.1029/2010JA016233 ADSCrossRefGoogle Scholar
  37. R.L. Olsen, S.D. Shawhan, D.L. Gallagher et al., J. Geophys. Res. 92, 2385–2407 (1987)ADSCrossRefGoogle Scholar
  38. J.L. Roeder, H.C. Koons, J. Geophys. Res. 94, 2529–2541 (1989)ADSCrossRefGoogle Scholar
  39. F.L. Scarf, D.A. Gurnett, W.S. Kurth, Science 204, 991–994 (1979)ADSCrossRefGoogle Scholar
  40. T.L. Schumaker, M.S. Gussenhoven, D.A. Hardy, R.L. Carovillano, J. Geophys. Res. 94, 10061–10078 (1989)ADSCrossRefGoogle Scholar
  41. R.R. Shaw, D.A. Gurnett, J. Geophys. Res. 80, 4259–4271 (1975)ADSCrossRefGoogle Scholar
  42. B.W. Sheeley, M.B. Moldwin, H.K. Rassoul, J. Geophys. Res. 106, 25631–25641 (2001)ADSCrossRefGoogle Scholar
  43. A. Shinbori, T. Ono, M. Iizima, A. Kumamoto, S. Shirai, A. Hanaoka, K. Okamoto, M. Ohashi, H. Oya, Earth Planets Space 59, 613–629 (2007)ADSGoogle Scholar
  44. E.C. Sittler Jr, D.F. Strobel, J. Geophys. Res. 92(5741), 1987 (1987)Google Scholar
  45. R.G. Stone, B.M. Pedersen, C.C. Harvey et al., Science 257, 1524–1531 (1992)ADSCrossRefGoogle Scholar
  46. D. Summers, R.M. Thorne, J. Plasma Phys. 53, 293–315 (1995)ADSCrossRefGoogle Scholar
  47. D. Summers, B. Ni, N.P. Meredith, J. Geophys. Res. 112, A04207 (2007). doi:10.1029/2006JA011993 ADSCrossRefGoogle Scholar
  48. D. Summers, R. Tang, R.M. Thorne, J. Geophys. Res. 114, A10210 (2009). doi:10.1029/2009JA014428 ADSCrossRefGoogle Scholar
  49. R.M. Thorne, Microscopic plasma processes in the Jovian magnetosphere, in Physics of the Jovian magnetosphere, ed. by A.J. Dessler (Cambridge University Press, Cambridge, 1983), p. 454CrossRefGoogle Scholar
  50. R.M. Thorne, B. Ni, X. Tao, R.B. Horne, N.P. Meredith, Nature 467, 943–946 (2010)ADSCrossRefGoogle Scholar
  51. A.T. Tomas, J. Woch, N. Krupp, A. Lagg, J. Geophys. Res. 109, A06203 (2004). doi:10.1029/2004JA010405 ADSCrossRefGoogle Scholar
  52. A.K. Tripathi, R.P. Singhal, Phys. Plasmas 16, 1–7 (2009)CrossRefGoogle Scholar
  53. J.H. Waite, D. Grodent Jr, B.M. Mauk, T. Majeed, G.R. Gladstone, S.J. Bolten, J.T. Clarks, J.C. Gerard, W.S. Lewis, L.M. Trafton, R.J. Walker, A.P. Ingersoll, J.E.P. Connerney, Adv. Space Res. 26, 1453–1475 (2000)ADSCrossRefGoogle Scholar
  54. T.S. Young, J.D. Callen, J.E. McCune, J. Geophys. Res. 78, 1082–1099 (1973)ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2012

Authors and Affiliations

  • A. K. Tripathi
    • 1
    • 2
  • R. P. Singhal
    • 1
  • K. P. Singh
    • 2
  • O. N. SinghII
    • 1
  1. 1.Department of Applied Physics, Institute of TechnologyBanaras Hindu UniversityVaranasiIndia
  2. 2.Department of Electronics Engineering, Institute of TechnologyBanaras Hindu UniversityVaranasiIndia

Personalised recommendations