The angular distribution of auroral kilometric radiation observed by the GEOTAIL spacecraft

被引：27

作者：

Kasaba, Y

Matsumoto, H

Hashimoto, K

Anderson, RR

机构：

[1] KYOTO UNIV,CTR RADIO ATMOSPHER SCI,UJI,KYOTO 611,JAPAN

[2] UNIV IOWA,DEPT PHYS & ASTRON,IOWA CITY,IA 52242

来源：

GEOPHYSICAL RESEARCH LETTERS | 1997年 / 24卷 / 20期

关键词：

D O I：

10.1029/97GL02599

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We examine the angular distribution of auroral kilometric radiation (AKR) based on a 38-month data set of GEOTAIL plasma wave observations. We show that the AKR illumination pattern becomes narrower with increasing frequency above 300 kHz. The difference is more evident in the duskside zone and when geomagnetic conditions become more disturbed. We also show that AKR is more active on the winter hemisphere especially for the higher frequency range.

引用

页码：2483 / 2486

页数：4

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