Dust obscuration of the narrow line region of active galactic nuclei

被引：4

作者：

Sargsyan, L. ^{[1
]}

Gevorgyan, M. ^{[2
]}

Abrahamyan, H. V. ^{[2
]}

Kostandyan, G. ^{[2
]}

Paronyan, G. ^{[2
]}

Samsonyan, A. ^{[2
]}

Sargsyan, D. ^{[2
]}

Sinamyan, P. ^{[2
]}

机构：

[1] Cornell Univ, Ithaca, NY 14853 USA

[2] VA Ambartsumyan Byurakan Astrophys Observ, Byurakan, Armenia

来源：

ASTROPHYSICS | 2012年 / 55卷 / 04期

关键词：

galaxies:; dust:; absorption;

D O I：

10.1007/s10511-012-9252-7

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

To estimate the dust absorption of the Narrow Line Region (NLR) of AGN, we have compared the infrared [NeIII] 15.55 mu m line and optical [OIII] 5007 line fluxes of 59 galaxies having SDSS and IRS low and high resolution spectra. Dividing our objects into objects with infrared spectra showing silicate feature at 9.7 mu m in absorption, in emission, and without this feature in their spectra, we determined that similar to 87 % of the emission from the NLR for objects with silicate absorption is absorbed by the dusty torus surrounding the AGN.

引用

页码：460 / 470

页数：11

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