Explaining occurrences of auroral kilometric radiation in Van Allen radiation belts
Explaining occurrences of auroral kilometric radiation in Van Allen radiation belts
复制标题
解释范艾伦辐射带中极光千米辐射的发生
DOI:
10.1002/2016gl071728
复制
发表时间:
2016-12
影响因子:
5.2
通讯作者:
Gao Zhonglei
中科院分区:
文献类型:
--
作者:
Xiao Fuliang;Zhou Qinghua;Su Zhenpeng;He Zhaoguo;Yang Chang;Liu Si;He Yihua;Gao Zhonglei
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.
登录
查看更多内容
影响因子:
--
作者:
P. Pritchett;R. Strangeway;R. Ergun;C. Carlson
通讯作者:
P. Pritchett;R. Strangeway;R. Ergun;C. Carlson
影响因子:
--
作者:
Fuliang Xiao;Qinghua Zhou;Zhaoguo He;Lijun Tang
通讯作者:
Lijun Tang
影响因子:
--
作者:
J. Hanasz;M. Panchenko;H. Feraudy;R. Schreiber;M. Mogilevsky
通讯作者:
J. Hanasz;M. Panchenko;H. Feraudy;R. Schreiber;M. Mogilevsky
影响因子:
--
作者:
W. Calvert;K. Hashimoto
通讯作者:
W. Calvert;K. Hashimoto
影响因子:
--
作者:
D. Gurnett
通讯作者:
D. Gurnett