NEW INFRARED OBSERVATIONS OF SEYFERT 2 GALAXIES AND UNIFICATION THEORIES

被引：48
作者：
RUIZ, M
RIEKE, GH
SCHMIDT, GD
机构：
[1] Steward Observatory, University of Arizona, Tucson
来源：
ASTROPHYSICAL JOURNAL | 1994年 / 423卷 / 02期
关键词：
GALAXIES; ACTIVE; SEYFERT; INFRARED; POLARIZATION;
D O I：
10.1086/173838
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present infrared spectroscopy of He I 1.083 mum and Pabeta for a sample of nine Seyfert 2 galaxies. These galaxies were selected for strong emission at approximately 3 mum and spectral energy distributions similar to type 1 Seyferts. We find broad emission lines components (FWHM approximately 1500 km s-1) in six galaxies of our sample and evidence for strong dust obscuration. Spectropolarimetry of Mrk 334 reveals that scattering screens are not a universal component of the broad-line region in Seyfert galaxies. The overall results show that the portion of Seyfert 1 galaxies is underestimated significantly in optically based studies and support current unified models for active galactic nuclei.
引用
收藏
页码：608 / 613
页数：6
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