LOW-FREQUENCY OBSERVATIONS OF DRIFTING, NON-THERMAL CONTINUUM RADIO EMISSION ASSOCIATED WITH THE SOLAR CORONAL MASS EJECTIONS

被引：19

作者：

Ramesh, R. ^{[1
]}

Kishore, P. ^{[1
]}

Mulay, Sargam M. ^{[2
]}

Barve, Indrajit V. ^{[1
]}

Kathiravan, C. ^{[1
]}

Wang, T. J. ^{[3
,4
]}

机构：

[1] Indian Inst Astrophys, Bangalore 560034, Karnataka, India

[2] Interuniv Ctr Astron & Astrophys, Pune 411007, Maharashtra, India

[3] Catholic Univ Amer, Dept Phys, Greenbelt, MD 20771 USA

[4] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

来源：

ASTROPHYSICAL JOURNAL | 2013年 / 778卷 / 01期

关键词：

Sun: activity; Sun: corona; Sun: coronal mass ejections (CMEs); Sun: flares; Sun: magnetic fields; Sun: radio radiation; MAGNETIC-FIELD; GAURIBIDANUR RADIOHELIOGRAPH; VLA OBSERVATIONS; PLASMA EMISSION; SOURCE REGION; QUIET SUN; BURSTS; IV; WAVELENGTHS; ECLIPSE;

D O I：

10.1088/0004-637X/778/1/30

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Low-frequency (80 MHz) imaging and spectral (approximate to 85-20 MHz) observations of moving type IV radio bursts associated with coronal mass ejections (CMEs) from the Sun on three different days are reported. The estimated drift speed of the bursts is in the range approximate to 150-500 km s(-1). We find that all three bursts are most likely due to second harmonic plasma emission from the enhanced electron density in the associated white-light CMEs. The derived maximum magnetic field strength of the latter is B approximate to 4 G at a radial distance of r approximate to 1.6 R-circle dot

引用

页数：8

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