LINEAR-POLARIZATION MAPS OF BIPOLAR AND COMETARY NEBULAE - A POLARIZED SOURCE INTERPRETATION

被引：20

作者：

GLEDHILL, TM

机构：

[1] Physics Department, University of Durham, South Road, Durham

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1991年 / 252卷 / 01期

关键词：

D O I：

10.1093/mnras/252.1.138

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A simple model of a polarized source is used to produce intensity isophotes and linear polarization maps simulating the scattering of fight in bipolar nebulae. The results indicate that features such as polarization null points and bands of parallel vectors can be explained in terms of a polarized source without recourse to aligned grains. The particular case of the reflection nebula NGC 2261 is considered in detail and it is shown how the model can account for the observed variability in the polarization of this object.

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页码：138 / 150

页数：13

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