Energetic ion spectral characteristics in the Saturnian magnetosphere using Cassini/MIMI measurements

Journal of Geophysical Research: Space Physics

Volumn 114, Issue 1, 2009, Pages

  Dialynas, K ^a,b   Krimigis, S M ^a,c   Mitchell, D G ^a,c,f   Hamilton, D C ^a,d   Krupp, N ^e   Brandt, P C ^c,f  

^a BIOMEDICAL RESEARCH FOUNDATION   (Greece)

^b UNIVERSITY OF ATHENS   (Greece)

^c JOHNS HOPKINS UNIVERSITY APPLIED PHYSICS LABORATORY   (United States)

^d University of Maryland   (United States)

^e MAX PLANCK INSTITUT FÜR SONNENSYSTEMFORSCHUNG   (Germany)

^f JOHNS HOPKINS UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 63149146687     PISSN: None     EISSN: 21699402     Source Type: Journal    
DOI: 10.1029/2008JA013761     Document Type: Article

References (36)

1. Carbary, J. F., S. M. Krimigis, and W. H. Ip (1983), Energetic particle microsignatures of Saturn's satellites, J. Geophys. Res., 88, 8947-8958, doi:10.1029/JA088iA11p08947.
2. Carbary, J. F., D. G. Mitchell, P. Brandt, C. Paranicas, and S. M. Krimigis (2008), ENA periodicities at Saturn, Geophys. Res. Lett., 35, L07102, doi:10.1029/2008GL033230.
3. Connerney, J. E. P., M. H. Acuña, and N. F. Ness (1983), Currents in Saturn's magnetosphere, J. Geophys. Res., 88, 8779-8789, doi:10.1029/JA088iA11p08779.
4. Delcourt, D. C. (2002), Particle acceleration by inductive electric fields in the inner magnetosphere, J. Atmos. Sol. Terr. Phys., 64, 551-559, doi:10.1016/S1364-6826(02)00012-3.
5. Esposito, W. L., et al. (2005), Ultraviolet imaging spectroscopy shows an active Saturnian system, Science, 307, 1251-1255, doi:10.1126/science. 1105606.
6. Fillius, W., W. H. Ip, and C. E. McIlwain (1980), Trapped radiation belts of Saturn: First look, Science, 207, doi:10.1126/science.207.4429.425.
7. Fok, M.-C., T. E. Moore, P. C. Brandt, D. C. Delcourt, S. P. Slinker, and J. A. Fedder (2006), Impulsive enhancements of oxygen ions during substorms, J. Geophys. Res., 111, A10222, doi:10.1029/2006JA011839.
8. Hamilton, D. C., G. Gloeckler, S. M. Krimigis, and W. I. Axford (1983), Energetic atomic and molecular ions in Saturn's Magnetosphere, J. Geophys. Res., 88, 8905-8922, doi:10.1029/JA088iA11p08905.
9. Johnson, R. E., H. T. Smith, O. J. Tucker, M. Liu, M. H. Burger, E. C. Sittler Jr., and R. L. Tokar (2006), The Enceladus and OH tori at Saturn, Astrophys. J., 644, L137-L139, doi:10.1086/505750.
10. Jurac, S., and J. D. Richardson (2005), A self consistent model of plasma and neutrals at Saturn: Neutral cloud mosrphology, J. Geophys. Res., 110, A09220, doi:10.1029/2004JA010635.
11. Kistler, L. M., F. M. Ipavich, D. C. Hamilton, and G. Gloeckler (1989), Energy spectra of the major ion species in the ring current during geomagnetic storms, J. Geophys. Res., 94, 3579-3599, doi:10.1029/JA094iA04p03579.
12. Krimigis, S. M., T. P. Armstrong, W. I. Axford, C. O. Bostrom, G. Gloekler, E. P. Keath, L. J. Lanzerotti, J. F. Carbary, D. C. Hamilton, and E. C. Roelof (1981), Low-energy charged particles in Saturn's magnetosphere-Results from Voyager 1, Science, 212, 225-231, doi:10.1126/science.212.4491.225.
13. Krimigis, S. M., T. P. Armstrong, W. I. Axford, C. O. Bostrom, G. Gloeckler, E. P. Keath, L. J. Lanzerotti, J. F. Carbary, D. G. Hamilton, and E. C. Roelof (1982), Low-energy hot plasma and particles in Saturn's magnetosphere, Science, 215, 571-577, doi:10.1126/science.215.4532.571.
14. Krimigis, S. M., J. F. Carbary, E. P. Keath, T. P. Armstrong, L. J. Lanzerotti, and G. Gloeckler (1983), General characteristics of hot plasma and energetic particles in the Saturnian magnetosphere-Results from the Voyager spacecraft, J. Geophys. Res., 88, 8871-8892, doi:10.1029/JA088iA11p08871.
15. Krimigis, S. M., et al. (2004), Magnetosphere Imaging Instrument (MIMI) on the Cassini Mission to Saturn/Titan, Space Sci. Rev., 114, 233-329, doi:10.1007/s11214-004-1410-8.
16. Krimigis, S. M., et al. (2005), Dynamics of Saturn's magnetosphere from MIMI during Cassini's orbital insertion, Science, 307, 1270-1273, doi:10.1126/science.1105978.
17. Krupp, N., et al. (2005), The Saturnian plasma sheet as revealed by energetic particle measurements, Geophys. Res. Lett., 32, L20S03, doi:10.1029/2005GL022829.
18. Levenberg, K. (1944), A method for the solution of certain problems in least squares, Q. Appl. Math., 2, 164-168.
19. Marquardt, D. (1963), An algorithm for least squares estimation on non-linear parameters, SIAM J. Appl. Math., 11, 431-441, doi:10.1137/0111030.
20. Mauk, B. H., S. M. Krimigis, and R. P. Lepping (1985), Particle and field stress balance within a planetary magnetosphere, J. Geophys. Res., 90, 8253-8264, doi:10.1029/JA090iA09p08253.
21. Mauk, B. H., D. G. Mitchell, R. W. McEntire, C. P. Paranicas, E. C. Roelof, D. J. Williams, and S. M. Krimigis (2004), Energetic ion characteristics and neutral gas interactions in Jupiter's magnetosphere, J. Geophys. Res., 109, A09S12, doi:10.1029/2003JA010270.
22. Mauk, B. H., et al. (2005), Energetic particle injections in Saturn's magnetosphere, Geophys. Res. Lett., 32, L14S05, doi:10.1029/2005GL022485.
23. McEntire, R. W., and D. G. Mitchell (1989), Instrumentation for global magnetospheric imaging via energetic neutral atoms, in Solar System Plasma Physics, Geophys. Monogr. Ser., vol. 54, edited by J. H. Waite Jr., J. L. Burch, and R. L. Moore, pp. 69-80, AGU, Washington, D.C.
24. Mitchell, D. G., P. C. Brandt, E. C. Roelof, J. Dandouras, S. M. Krimigis, and B. H. Mauk (2005a), Energetic neutral atom emissions from Titan interaction with Saturn's magnetosphere, Science, 308, 989-992, doi:10.1126/science.1109805.
25. Mitchell, D. G., et al. (2005b), Energetic ion acceleration in Saturn's magetosphere: Substorms on Saturn?, Geophys. Res. Lett., 32, L20S01, doi:10.1029/2005GL022647.
26. Paranicas, C., W. R. Paterson, A. F. Cheng, B. H. Mauk, R. W. McEntire, L. A. Frank, and D. J. Williams (1999), Energetic particle observations near Ganymede, J. Geophys. Res., 104, 17,459-17,467, doi:10.1029/1999JA900199.
27. Paranicas, C., D. G. Mitchell, E. C. Roelof, P. C. Brandt, D. J. Williams, S. M. Krimigis, and B. H. Mauk (2005); Periodic intensity variations in global ENA images of Saturn, Geophys. Res. Lett., 32, L21101, doi:10.1029/2005GL023656.
28. Paranicas, C., D. G. Mitchell, S. M. Krimigis, D. C. Hamilton, E. Roussos, N. Krapp, G. H. Jones, R. E. Johnson, J. F. Cooper, and T. P. Armstrong (2008), Sources and losses of energetic protons in Saturn's magnetosphere, Icarus, 197, 519-525, doi:10.1016/j.icarus.2008.05.011.
29. Roussos, E., G. H. Jones, N. Krupp, C. Paranicas, D. G. Mitchell, A. Lagg, J. Woch, U. Motschmann, S. M. Krimigis, and M. K. Dougherty (2007), Electron microdiffusion in the Saturnian radiation belts: Cassini MIMI/ LEMMS observations of energetic electron absorption by the icy moons, J. Geophys. Res., 112, A06214, doi:10.1029/2006JA012027.
30. Rymer, A. M., et al. (2007), Electron sources in Saturn's magnetosphere, J. Geophys. Res., 112, A02201, doi:10.1029/2006JA012017.
31. Rymer, A. M., B. H. Mauk, T.W. Hill, C. Paranicas, D. G. Mitchell, A. J. Coates, and D. T. Young (2008), Electron circulation in Saturn's magnetosphere, J. Geophys. Res., 113, A01201, doi:10.1029/2007JA012589.
32. Sergis, N., S. M. Krimigis, D. G. Mitchell, D. C. Hamilton, N. Krupp, B. M. Mauk, E. C. Roelof, and M. Dougherty (2007), Ring current at Saturn: Energetic particle pressure in Saturn's equatorial magnetosphere measured with Cassini/MIMI, Geophys. Res. Lett., 34, L09102, doi:10.1029/2006GL029223.
33. Sittler, E. C., et al. (2008), Ion and neutral sources and sinks within Saturn's inner magnetosphere: Cassini results, Planet. Space Sci., 56, 3-18, doi:10.1016/j.pss.2007.06.006.
34. Van Allen, J. A., M. F. Thomsen, B. A. Randall, R. L. Rairden, and C. L. Grosskreutz (1980), Satum's magnetosphere, rings and inner satellites, Science, 207, 415-421, doi:10.1126/science.207.4429.415.
35. Vasyliunas, V. M. (1968), A survey of low-energy electrons in the evening sector of the magnetosphere with OGO 1 and OGO 3, Geophys. Res. Lett., 73, 2839-2884.
36. Young, D. T., et al. (2005), Composition and dynamics of plasma in Saturn's magnetosphere, Science, 307, 1262-1266, doi:10.1126/science. 1106151.