Nuclear obscuration in Seyfert 2 galaxies with and without polarized broad emission lines

被引：0
|
作者：
Shu, X. W. [1 ]
Wang, J. -X. [1 ]
Jang, P. [1 ]
Fan, L. L. [1 ]
Wang, T. -G. [1 ]
机构：
[1] Univ Sci & Technol China, Ctr Astrophys, Anhua 230026, Peoples R China
来源：
CENTRAL ENGINE OF ACTIVE GALACTIC NUCLEI | 2007年 / 373卷
关键词：
D O I：
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We compiled a sample of 54 Seyfert 2 galaxies with both spectropolarimetric and X-ray observations to investigate the role of nuclear obscuration in the visibility of polarized broad emission lines (PBL). We find that at L-[O III] > 10(41) ergs s(-1), Seyfert 2 galaxies without PBL are more obscured in X-ray (at a confidence level of 99%). Our results explain the non-detections of PBL under the framework of the unified model, and put strong constraint on the geometry of the obscuring torus and the scattering region.
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页码：507 / 508
页数：2
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