CORONAS-F observations of solar energetic protons:: changes of geomagnetic transmissivity in the disturbed magnetosphere

被引：0
|
作者：
Kuznetsov, S. N. [1 ]
Kudela, K. [1 ]
Bucik, R. [1 ]
Yushkov, B. Y. [1 ]
机构：
[1] MSU, SINP, Moscow, Russia
来源：
Proceedings of the 29th International Cosmic Ray Conference, Vol 2: SH3 | 2005年
关键词：
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The geomagnetic transmissivity for cosmic ray vertical access is computed for selected intervals of disturbed magnetosphere using two geomagnetic field models. The improved transmissivity of the magnetosphere lead to, the increases observed at neutron monitors at stations with middle and high cutoff nominal position. During the October 29, 2003 solar flare event, the increase of proton intensity > 75 MeV at CORONAS-F satellite at L=3 coincided with the cutoff reduction expected by Dst depression. The increase of protons > 75 MeV at L=3 was observed also during the magnetospheric disturbance on November 8, 2004 during the geomagnetic disturbance when rather strong cosmic ray decrease,was observed on the ground as well as on high latitude passes of CORONAS-F.
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页码：409 / 412
页数：4
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