A generation mechanism for discrete very low frequency emissions observed at Varanasi

被引：0

作者：

Singh, AK ^{[1
]}

Singh, SB

Singh, RP

机构：

[1] VKS Univ, Maharaja Coll, Dept Phys, Arrah 802301, India

[2] Banaras Hindu Univ, Dept Phys, Varanasi 221005, Uttar Pradesh, India

来源：

PRAMANA-JOURNAL OF PHYSICS | 2005年 / 65卷 / 06期

关键词：

physics of magnetosphere; trapped particles; waves : propagation and excitation;

D O I：

10.1007/BF02705285

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new type of discrete VLF emissions recorded at the low-latitude ground station Varanasi (geomag. lat. 14 degrees 55' N, geomag. long. 154 degrees E; L = 1.07) during the strong magnetic activity on 29-30 April 1990 have been reported. A generation mechanism for various temporal and spectral features of discrete VLF emissions recorded at Varanasi is presented on the basis of cyclotron resonance interaction between whistler mode wave and energetic electrons ejected by substorm electric fields. An attempt is also made to determine parallel energy and wave growth relevant to the generation process of discrete VLF emissions. Finally, our results are discussed with other published works.

引用

页码：1109 / 1114

页数：6