Proton spectrum of the 2005 January 20 solar flare

An extreme solar cosmic ray event broke out on 2005 January 20.Not only is it the most intensive solar energetic particle (SEP) event,with＞100 MeV particles measured by GOES satellite since 1986,but it has been the largest ground level enhancement (GLE) event recorded by the ground-based neutron monitors since 1956.This work presents the solar proton spectra for this event with data obtained by GOES in multiple energy cbannels.These spectra are well fitted by a modified power-law function.The spectral index of around -1 indicates that the January 20 event has a hard energy spectrum.Possible mechanisms for the acceleration of relativistic protons are discussed.

作 者： WANG Rui-Guang   作者單位： Key Laboratory for Particle Astrophysics,Institute of High Energy Physics,CAS,Beijing 100049,China  刊 名： 中國(guó)物理C（英文版）  ISTIC 英文刊名： CHINESE PHYSICS　C  年，卷(期)： 2008 32(2)  分類號(hào)：   關(guān)鍵詞： spectrum   solar energetic particles   ground level enhancements   coronal mass ejections  

【Proton spectrum of the January 20 s】相關(guān)文章：

Energy spectrum of fermionized bosonic atoms in optical lattices04-26

ηproduction in proton-nucleus collisions near threshold04-28

Relativistic Corrections to the Thermal Sunyaev-Zeldovich Power Spectrum04-27

The secular variation of inner zone high energy proton environment in the SAA04-26

January 27th,2010工作總結(jié)04-26

Hilbert spectrum and intrinsic oscillation mode of dynamic response of a bilinear SDOF system: influence of harmonic exc04-29

Changes of plasma membrane ATPase activity,membrane potential and transmembrane proton gradient in Kandelia candel and A04-25

Comparison between global phenomenological and microscopic optical potentials for proton as projectile below 100 MeV04-28

C/S與B/S相結(jié)合的CB/S模式04-29

汽車4s店行政的崗位職責(zé)（精選20篇）08-07