Local structures of electrons with energies of hundreds of keV in the inner belt and the slot region observed from the Vernov satellite


Citar

Texto integral

Acesso aberto Acesso aberto
Acesso é fechado Acesso está concedido
Acesso é fechado Somente assinantes

Resumo

The structure and dynamics of electron fluxes of subrelativistic energies in the range 235–300 keV at L < 4 during December 3–8, 2014, are analyzed according to the RELEC instrument onboard the Vernov satellite. Sharp changes in the parameters of the solar wind and the IMF were detected on December 6, but they did not lead to a magnetic storm. However, after the event of December 6, subrelativistic electron fluxes in the inner belt and the slot region were enhanced and structured. The dynamics of electron fluxes in the local transient bursts at L ~ 1.5–1.7 is considered in detail. It is shown that these bursts are associated with the development of the cyclotron instability in the tops of magnetic flux tubes near the inner belt maximum. The electron anisotropic index is estimated in these bursts. It is shown that in the beginning these bursts are anisotropic and that they become isotropic as the decay proceeds. The most likely chain of physical mechanisms that could lead to variations in electron fluxes of the inner belt described in this paper is presented. For the first time, the topological effects in stationary distributions of the electrons of the inner belt observed at low altitudes in the South Atlantic Anomaly region are explained.

Sobre autores

A. Kovtyukh

Research Institute of Nuclear Physics

Email: irina@srd.sinp.msu.ru
Rússia, Moscow, 119991

I. Myagkova

Research Institute of Nuclear Physics

Autor responsável pela correspondência
Email: irina@srd.sinp.msu.ru
Rússia, Moscow, 119991

A. Bogomolov

Research Institute of Nuclear Physics

Email: irina@srd.sinp.msu.ru
Rússia, Moscow, 119991

V. Bogomolov

Research Institute of Nuclear Physics; Moscow State University

Email: irina@srd.sinp.msu.ru
Rússia, Moscow, 119991; Moscow, 119991

M. Panasyuk

Research Institute of Nuclear Physics; Moscow State University

Email: irina@srd.sinp.msu.ru
Rússia, Moscow, 119991; Moscow, 119991

S. Svertilov

Research Institute of Nuclear Physics; Moscow State University

Email: irina@srd.sinp.msu.ru
Rússia, Moscow, 119991; Moscow, 119991

Arquivos suplementares

Arquivos suplementares
Ação
1. JATS XML

Declaração de direitos autorais © Pleiades Publishing, Ltd., 2016