Spectral variations and long-period intensity variations of auroral kilometric radiation from INTERBALL-2 satellite measurements

被引：0

作者：

M. M. Mogilevsky

I. L. Moiseenko

J. Hanasz

机构：

[1] Russian Academy of Sciences,Space Research Institute

[2] Polish Academy of Sciences,Space Research Center

来源：

Astronomy Letters | 2005年 / 31卷

关键词：

radio emission; cyclotron maser; magnetosphere; ionosphere;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A statistical analysis of the auroral kilometric radiation (AKR) measurements in the POLRAD experiment on the INTERBALL-2 satellite has revealed a dependences of the size and location of the AKR generation region on geomagnetic activity: the generation region rises upward and expands with increasing magnetic disturbances. Based on our two-year measurements, we found seasonal AKR intensity variations: the AKR maximum and minimum are observed in winter and summer, respectively. The seasonal variations and the dependence of the spectrum on geomagnetic activity are assumed to have a common physical nature—the background-plasma density variations in the region of the AKR source attributable to plasma flows from the ionosphere into the magnetosphere.

引用

页码：422 / 426

页数：4

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