The spatial distribution of circularly polarized 1612 MHz OH maser emission from VX Sgr

被引：11
|
作者：
Zell, PJ
Fix, JD
机构：
[1] Department of Physics and Astronomy, University of Iowa, Iowa City
来源：
ASTRONOMICAL JOURNAL | 1996年 / 112卷 / 01期
关键词：
D O I：
10.1086/118007
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have used the VLA to observe the 1612 MHz OH emission from the M supergiant VX Sgr in both right and left circular polarization. The maps of polarized emission from VX Sgr provide the first evidence of spatial segregation between oppositely polarized emitting regions within the circumstellar shell of a cool star and suggest that the circumstellar magnetic field of VX Sgr is globally organized. We present a simple model that can account for the spatial segregation of the polarization maps of VX Sgr. (C) 1996 American Astronomical Society.
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页码：252 / 257
页数：6
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