富<sup>3</sup>He SEP事件中电子经向分布及其日面传播研究

doi:10.13878/j.cnki.jnuist.2016.02.011

2025年4月4日 16:07 星期五

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富3He SEP事件中电子经向分布及其日面传播研究
DOI:
                        10.13878/j.cnki.jnuist.2016.02.011
                    
作者:
                        王娅冰王娅冰
南京信息工程大学 物理与光电工程学院, 南京, 210044;南京信息工程大学 空间天气研究所, 南京, 210044
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金远伟金远伟
南京工程学院 数理部, 南京, 211167
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顾斌顾斌
南京信息工程大学 物理与光电工程学院, 南京, 210044;南京信息工程大学 空间天气研究所, 南京, 210044
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张雅男张雅男
南京信息工程大学 物理与光电工程学院, 南京, 210044;南京信息工程大学 空间天气研究所, 南京, 210044
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基金项目:国家自然科学基金(11105075);江苏省高校"青蓝工程"(2012)项目;江苏省公派留学基金(JS2012-105)

Characteristics of longitudinal distribution and heliographic transport of electrons in the ³He rich SEP events

Author:

WANG Yabing
WANG Yabing
School of Physics and Optoelectronic Engineering, Nanjing University of Science & Technology, Nanjing 210044;Institute of Space Weather, Nanjing University of Science & Technology, Nanjing 210044
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JIN Yuanwei
JIN Yuanwei
Department of Mathematics and Physics, Nanjing Institue of Technology, Nanjing 211167
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GU Bin
GU Bin
School of Physics and Optoelectronic Engineering, Nanjing University of Science & Technology, Nanjing 210044;Institute of Space Weather, Nanjing University of Science & Technology, Nanjing 210044
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ZHANG Yanan
ZHANG Yanan
School of Physics and Optoelectronic Engineering, Nanjing University of Science & Technology, Nanjing 210044;Institute of Space Weather, Nanjing University of Science & Technology, Nanjing 210044
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摘要:

根据ACE/ULEIS卫星数据,确定了2007-05—2010-01太阳活动极小期内的3个独立富³He太阳高能粒子(SEP)事件,并结合STEREO双星对相同事件的观测数据,研究了事件中电子的经向分布特征.结果表明:由耀斑引起的3个独立SEP事件,电子的经向分布宽度可达到130°.计算表明,携带电子传播的日面波传播速度差异显著,电子的此类经向分布很可能是由于其在日面横向扩散所致.当观测点磁力线足点位于耀斑源区东侧时,电子的日面扩散速度更快.

关键词:太阳高能粒子;富³He SEP事件;电子经向分布;电子日面传播;多卫星观测

Abstract:

In this paper,three independent ³He-rich solar energetic particle (SEP) events during the solar minimum from May 2007 to January 2010 were identified using ACE/ULEIS data.The observations of the twin satellites,STEREO-A and B,indicate that the longitudinal distribution of these energetic electrons originated from the minor flare induced SEP events might be extended to about 130 degree.On the assumption that the heliographic transportation accounts for the longitudinal distribution,calculations show that,here exists a magnificent difference in the longitude transport speed of the electron carrying waves,and these electrons moves faster to east than to west from the active particle source.

Key words:solar energetic particles(SEP);³He-rich SEP events;the longitudinal distribution of electrons;the heliographic transmission of electrons;observation of multi-satellite

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王娅冰,金远伟,顾斌,张雅男.富³He SEP事件中电子经向分布及其日面传播研究[J].南京信息工程大学学报(自然科学版),2016,8(2):175-180
WANG Yabing, JIN Yuanwei, GU Bin, ZHANG Yanan. Characteristics of longitudinal distribution and heliographic transport of electrons in the ³He rich SEP events[J]. Journal of Nanjing University of Information Science & Technology, 2016,8(2):175-180

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收稿日期:2014-11-14
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在线发布日期: 2016-04-20
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