Circular polarization induced by scintillation in a magnetized medium

被引：11
|
作者：
Macquart, JP [1 ]
Melrose, DB [1 ]
机构：
[1] Univ Sydney, Sch Phys, Res Ctr Theoret Astrophys, Sydney, NSW 2006, Australia
来源：
PHYSICAL REVIEW E | 2000年 / 62卷 / 03期
关键词：
D O I：
10.1103/PhysRevE.62.4177
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
A theory is presented for the development of circular polarization as radio waves propagate through the turbulent, birefringent interstellar medium. The fourth order moments of the wave field are calculated, and it is shown that unpolarized incident radiation develops a nonzero variance in circular polarization. A magnetized turbulent medium causes the Stokes parameters to scintillate in a nonidentical manner. A specific model for this effect is developed for the case of density fluctuations ina uniform magnetic field.
引用
收藏
页码：4177 / 4188
页数：12
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