Abstract
Experimental proofs of the existence of the formation and destruction mechanisms of solar proton belts in the inner magnetosphere at a rapid change in the penetration boundary of solar protons are presented. An analysis of the measurements of solar protons and alpha-particles on board the Coronas-F low-altitude polar satellite during the magnetic storms in October–November 2003 is performed. During this period, formation and destruction of the belts of solar cosmic rays was observed several times. The compression of the magnetosphere during a storm makes possible the direct penetration of solar protons deep into the inner magnetosphere. The proton trajectories outside the penetration boundary are open, and the preliminary captured particles can easily leave the magnetosphere. During the recovery of the magnetospheric configuration, when the penetration boundary goes away from the Earth, the solar protons and alpha-particles with relatively low velocity of the magnetic drift remain stably captured, whereas the particles of higher energies follow the motion of the penetration boundary. That is why the energy range of the captured protons is limited from above in contrast to the effect of injection during ineffective SC in the low-energy region.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J. B. Blake, W. A. Kolasinski, R. W. Fillius, and E. G. Muller, “Injection of Electrons and Protons with Energies of Tens of MeV Into L > 4 on 24 March 1991,” Geophys. Res. Lett. 19, 821–825 (1992).
C. O. Bostrom, D. S. Brall, and J. C. Armstrong, “Time History of the Inner Radiation Zone, October 1965–December 1968,” J. Geophys. Res. 75, 1246–1256 (1970).
C. G. Falthammar, “On the Transport of Trapped Particles in the Outer Magnetosphere,” J. Geophys. Res. 70, 2503–2512 (1965).
M. K. Hudson, S. R. Elkington, J. G. Lyon, et al., “Simulation of Proton Radiation Belt Formation during Storm Sudden Commencements,” J. Geophys. Res. 102, 14087–14102 (1997).
X. Li, I. Roth, M. Temerin, et al., “Simulations of the Prompt Energization and Transport of Radiation Belt Particles during the March 24, 1991 SSC,” Geophys. Res. Lett. 20, 2423–2428 (1993).
M. D. Looper, J. B. Blake, and R. A. Mewaldt, “Response of the Inner Radiation Belt to the Violent Sun-Earth Connection Events of October–November 2003,” Geophys. Res. Lett. 32, L03S06 (2004).
K. R. Lorentzen, J. E. Mazur, M. E. Loper, et al., “Multisatellite Observations of MeV Ion Injections during Storms,” J. Geophys. Res. 107, 1231–1243 (2002).
M. I. Panasyuk, et al., “Collaboration ’solar Extreme Events of 2003 (SES-2003)’,” Kosm. Issled. 42(5), 489–534 (2004).
E. N. Parker, “Geomagnetic Fluctuations and the Form of the Outer Zone of the Van Allen Radiation Belt,” J. Geophys. Res. 65, 3117–3126 (1960).
N. N. Pavlov, L. V. Tverskaya, B. A. Tverskoy, and E. A. Chuchkov, “Variations in the Radiation Belt Particle Flux during a Strong Magnetic Storm of March 24, 1991,” Geomagn. Aeron. 33(6), 41–45 (1993).
P. L. Slocum, K. R. Lorentzen, J. B. Blake, et al., “Observations of Ion Injections during Large Solar Particle Events,” in AGU Fall Meeting (SH61A-0501, 2002).
B. A. Tverskoy, “Formation Mechanism for the Structure of the Magnetic-Storm Ring Current,” Geomagn. Aeron. 37(1), 29–34 (1997) [Geomagn. Aeron. 37, 555–559 (1997)].
B. A. Tverskoy, “Transportation and Acceleration of Charged Particles in the Earth’s Magnetosphere,” Geomagn. Aeron. 5, 793–809 (1965).
I. S. Veselovsky, et al., “Solar and Chromospheric Phenomena in October 2003: Causes and Effects, Collaboration ’solar Extreme Events of 2003 (SES-2003)’,” Kosm. Issled. 42(5), 435–488 (2004).
Author information
Authors and Affiliations
Additional information
Original Russian Text © L.L. Lazutin, S.N. Kuznetsov, A.N. Podorol’skii, 2007, published in Geomagnetizm i Aeronomiya, 2007, Vol. 47, No. 2, pp. 187–197.
Rights and permissions
About this article
Cite this article
Lazutin, L.L., Kuznetsov, S.N. & Podorol’skii, A.N. Dynamics of the radiation belt formed by solar protons during magnetic storms. Geomagn. Aeron. 47, 175–184 (2007). https://doi.org/10.1134/S0016793207020053
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1134/S0016793207020053