DOI: 10.1002/2016GL071728
论文题名: Explaining occurrences of auroral kilometric radiation in Van Allen radiation belts
作者: Xiao F. ; Zhou Q. ; Su Z. ; He Z. ; Yang C. ; Liu S. ; He Y. ; Gao Z.
刊名: Geophysical Research Letters
ISSN: 0094-8335
EISSN: 1944-8066
出版年: 2016
卷: 43, 期: 23 起始页码: 11971
结束页码: 11978
语种: 英语
英文关键词: AKR emissions
; geomagnetic storms
; radiation belts
; ray tracing simulations
; satellite data
Scopus关键词: Geomagnetism
; Ionizing radiation
; Radiation
; Ray tracing
; Storms
; Auroral kilometric radiations
; Earth's radiation belts
; Geomagnetic storm
; High resolution observations
; Radiation belt electrons
; Ray tracing simulation
; Satellite data
; Van allen radiation belts
; Radiation belts
英文摘要: Auroral kilometric radiation (AKR) is a strong terrestrial radio emission and dominates at higher latitudes because of reflection in vicinities of the source cavity and plasmapause. Recently, Van Allen Probes have observed occurrences of AKR emission in the equatorial region of Earth's radiation belts but its origin still remains an open question. Equatorial AKR can produce efficient acceleration of radiation belt electrons and is a risk to space weather. Here we report high-resolution observations during two small storm periods 4–6 April and 18–20 May 2013 and show, using a 3-D ray tracing simulation, that AKR can propagate downward all the way into the equatorial plane in the radiation belts under appropriate conditions. The simulated results can successfully explain the observed AKR's spatial distribution and frequency range, and the current results have a wide application to all other magnetized astrophysical objects in the universe. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85006788289&doi=10.1002%2f2016GL071728&partnerID=40&md5=23746755e82a88cf79356fd9b4567019
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9298
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: School of Physics and Electronic Sciences, Changsha University of Science and Technology, Changsha, China
Recommended Citation:
Xiao F.,Zhou Q.,Su Z.,et al. Explaining occurrences of auroral kilometric radiation in Van Allen radiation belts[J]. Geophysical Research Letters,2016-01-01,43(23).