Artículos de revistas
The Temporal Evolution Of 3 - 9 Mev/nucleon He Flux Trapped In The Magnetosphere
Registro en:
Geophysical Research Letters. , v. 23, n. 20, p. 2793 - 2796, 1996.
948276
2-s2.0-0030269387
Autor
Pugacheva G.I.
Gusev A.A.
Martin I.M.
Spjeldvik W.N.
Kohno T.
Institución
Resumen
Institute of Physical and Chemical Research (RIKEN), Saitama, Japan Results of measurements of the absolute values and long term temporal evolution of the spatial distribution of trapped He ion fluxes of 3.2 - 9.2 MeV/nucleon energy at L < 4 obtained by the OHZORA satellite are reported. The annually averaged radial profile exhibits one persistently present peak at L = 1.3 - 1.5 as well as very significant transient trapped fluxes at L = 1.4 - 4.0 during the period 1984-1986. Together the absolute values of the fluxes measured by OHZORA and S72-1, SAMPEX, and CRRES spacecrafts may approximately be described by a power spectrum with index of -8.0±1.0 at L = 1.9-2.3 within the energy range of 3 - 100 MeV/nucleon. Copyright 1996 by the American Geophysical Union. 23 20 2793 2796 Barashenkov, V.S., Toneev, V.D., (1972) Interaction of Particles and Atomic Nuclei of High and Superhigh Energies with Nuclei (In Russian), p. 478. , Atomizdat, Moscow Blake, J.B., Fennell, J.F., Schulz, M., Paulikas, G.A., Geomagnetically trapped alpha particles. 2. the inner zone (1973) J. Geophys. Res., 78, pp. 5498-5506 Chen, J., Guzik, G., Sang, Y., Wefel, J., Cooper, J., Energetic helium particles trapped in the inner magnetosphere (1994) Geophys. Res. Lett., 21, pp. 1583-1586 Cummings, J.R., Cummings, A.C., Mewaldt, R.A., Selesnick, R.S., Stone, E.C., New evidence for geomagnetically trapped anomalous cosmic rays (1993) Geophys. Res. Lett., 20, pp. 2003-2006 Cummings, J.R., Mewaldt, R.A., Selesnik, R.S., Stone, E.C., Blake, J.B., Looper, M.D., MAST observations of high energy trapped helium nuclei (1994) EOS, Trans., AGU, 75, p. 303 Fritz, T.A., Spjeldvik, W.N., Observations of energetic radiation belt helium ions at the geomagnetic equator during quiet conditions (1978) J. Geophys. Res., 83, pp. 2579-2583 Gusev, A.A., Pugacheva, G.I., Kudela, K., Just, L., On the sources of high energy electrons trapped in the inner radiation zone (1987) Planetary and Space Science, 35, pp. 1281-1285 Krimigis, S.M., Van Allen, J.A., Geomagnetically trapped alpha particles (1967) J. Geophys. Res., 72, pp. 5779-5797 Kohno, T., Gusev, A.A., Martin, I.M., Pugacheva, G.I., The trapped He flux dynamics observed on the OHZORA satellite during 1984-1987 (1995) Geophys. Res. Lett., 22, pp. 877-880 Rubin, A.G., Filz, R.C., Rothwell, P.L., Sellers, B., Geomagnetically trapped alpha particles from 18 to 70 MeV (1977) J. Geophys. Res., 82, pp. 1938-1942 Spjeldvik, W.N., Fritz, T.A., Observations of energetic helium ions in the Earth's radiation belts during a sequence of geomagnetic storms (1981) J. Geophys. Res., 86, pp. 2317-2357 Turtelli Jr., A., Kohno, T., Jayanthi, U.B., Adams Jr., J.H., Martin, I.M., Villela, T., Neri, A., Boberg, P.R., Anomalous and solar cosmic ray observations with the first Brazilian scientific microsatellite (1995) Proc. 24 Int. Cosm. Ray Conf, 4 SH, pp. 1275-1278