ESTIMATION OF MAGNETIC FIELD IN THE SOLAR CORONAL STREAMERS THROUGH LOW FREQUENCY RADIO OBSERVATIONS

被引：33

作者：

Ramesh, R. ^{[1
]}

Kathiravan, C. ^{[1
]}

Sastry, Ch. V. ^{[1
]}

机构：

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

来源：

ASTROPHYSICAL JOURNAL | 2010年 / 711卷 / 02期

关键词：

Sun: activity; Sun: corona; Sun: magnetic topology; Sun: radio radiation; EMISSION; MHZ; RADIOHELIOGRAPH; INTERPLANETARY; POLARIZATION; STRENGTH; MODEL;

D O I：

10.1088/0004-637X/711/2/1029

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The observations of circularly polarized thermal radio emission from solar coronal streamers at two low frequencies, viz., 77 and 109 MHz, are used to estimate the magnetic field strength (B) at their corresponding radial distances r approximate to 1.7 and 1.5 solar radii given by the electron density model of Newkirk. The estimated values of B at the above two distances are approximate to 5 +/- 1 G and 6 +/- 2 G, respectively.

引用

页码：1029 / 1032

页数：4

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