THE THEORETICAL POLARIZATION FROM AXISYMMETRICAL CIRCUMSTELLAR ENVELOPES WITH CONSTANT SCATTERING OPTICAL DEPTH

被引：1
|
作者：
FOX, GK
机构：
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1993年 / 264卷 / 03期
关键词：
POLARIZATION; RADIATIVE TRANSFER; SCATTERING; STARS-EMISSION-LINE; BE; STARS-WOLF-RAYET;
D O I：
10.1093/mnras/264.3.565
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The single-scattering of light through an axisymmetric, optically thin envelope with iso-scattering optical depth is considered. The maximum theoretical polarization of Wolf-Rayet and Be stars is then investigated using three geometrical model envelopes that are frequently encountered in the literature: a two-component wind, a wedge-shaped disc and an oblate spheroid. The degree of polarization from such envelopes is found to be P less-than-or-equal-to 0.6 per cent, consistent with observations of WR stars but not with those of Be stars, suggesting that the model is not consistent with the astrophysics of Be stars.
引用
收藏
页码：565 / 569
页数：5
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