Spectropolarimetry of compton-thin Seyfert 2 galaxies

被引：42

作者：

Lumsden, SL ^{[1
]}

Alexander, DM

Hough, JH

机构：

[1] Univ Leeds, Dept Phys & Astron, Leeds LS2 9JT, W Yorkshire, England

[2] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England

[3] Univ Hertfordshire, Dept Phys Sci, Hatfield AL10 9AB, Herts, England

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2004年 / 348卷 / 04期

关键词：

polarization; scattering; galaxies : active; galaxies : Seyfert; X-rays : galaxies;

D O I：

10.1111/j.1365-2966.2004.07469.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present new spectropolarimetry of a sample of nearby Compton-thin Seyfert 2 galaxies (i.e. those with N-H < 10(23) cm(-2)). We show that the detection rate of scattered broad Hα in this sample is considerably higher than in Seyfert 2 galaxies as a whole. Our results also show that in this low obscuration set it is possible to find scattered broad Hα even when the global properties of the galaxy are largely dominated by the host galaxy and not the active galactic nucleus. These results argue against the existence of a population of 'pure' Seyfert 2 galaxies.

引用

页码：1451 / 1458

页数：8

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