Fe/O ratio variations during the disturbed stage in the development of the solar cosmic ray fluxes: Manifestations of the first ionization potential effect in the solar cosmic ray composition

被引：2
作者：
Minasyants, G. S. [1 ]
Minasyants, T. M. [1 ]
Tomozov, V. M. [2 ]
机构：
[1] Natl Acad Sci Kazakhstan AFIF, Fesenkov Astrophys Inst, Alma Ata, Kazakhstan
[2] Russian Acad Sci, Siberian Branch, Inst Solar Terr Phys ISZF, Ul Lermontova 126A, Irkutsk 664033, Russia
来源：
GEOMAGNETISM AND AERONOMY | 2016年 / 56卷 / 02期
关键词：
ENERGETIC PARTICLES; ELEMENT ABUNDANCES; ACCELERATION; FLARES; ORIGIN; SHOCKS; MODEL;
D O I：
10.1134/S0016793216020110
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
The accelerated particle energy spectra in different energy intervals (from 0.06 to 75.69 MeV n(-1)) have been constructed for various powerful flare events (1997-2006) with the appearance of solar cosmic rays (SCRs) based on the processing of data from the Advanced Composition Explorer (ACE) and WIND spacecraft. Flares were as a rule accompanied by coronal mass ejections. Different specific features in the particle spectra behavior, possibly those related to different acceleration processes, were revealed when the events developed. The Fe/O abundance ratio in different energy intervals during the disturbed development of flareinduced fluxes has been qualitatively estimated. It has been established that ground level event (GLE) fluxes represent an individual subclass of gradual events according to the character of Fe/O variations. The manifestations of the first ionization potential (FIP) effect in the composition of SCRs during their propagation have been qualitatively described.
引用
收藏
页码：203 / 212
页数：10
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