Location and size of the global source region of whistler mode chorus

被引：8

作者：

Hayosh, M. ^{[1
]}

Santolik, O. ^{[1
,2
]}

Parrot, M. ^{[3
]}

机构：

[1] Acad Sci Czech Republic, Inst Atmospher Phys, Prague 14131, Czech Republic

[2] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic

[3] CNRS, LPC2E, F-45071 Orleans, France

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS | 2010年 / 115卷

关键词：

STORM-TIME CHORUS; PROPAGATION ANALYSIS; POLARIZATION STATES; STAFF EXPERIMENT; CLUSTER; WAVES; EMISSIONS; MAGNETOSPHERE; ACCELERATION; ELECTRONS;

D O I：

10.1029/2009JA014950

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We use multicomponent measurements of the four Cluster spacecraft and a backward ray tracing simulation to estimate the location and size of the global source of whistler mode chorus emissions in the magnetic equatorial plane. For the first time, analysis is made in a broad range of latitudes in both hemispheres along a single Cluster orbit. Our results show that for different time intervals, the sizes of the observed portions of the global chorus source region in the equatorial plane varied between 0.4 and 1.5 Earth radii. They were found at radial distances between 4.5 and 8.2 Earth radii during 2 h of measurements. Therefore, the superposed minimum width of the global source region of whistler mode chorus in the magnetic equatorial plane is approximately 4 Earth radii.

引用

页数：8

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