The toroidal obscuration of active galactic nuclei

被引：102

作者：

Elitzur, Moshe ^{[1
]}

机构：

[1] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA

来源：

NEW ASTRONOMY REVIEWS | 2008年 / 52卷 / 06期

关键词：

dust; extinction; galaxies : active; galaxies : seyfert; infrared : general; quasars : general; radiative transfer;

D O I：

10.1016/j.newar.2008.06.010

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Observations give Strong support for the unification scheme of active galactic nuclei. The scheme is premised on toroidal obscuration of the central engine by dusty clouds that are individually very optically thick. These lectures Summarize the torus properties, describe the handling and implications of its clumpy nature and present speculations about its dynamic origin. (c) 2008 Elsevier B.V. All rights reserved.

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页码：274 / 288

页数：15

相关论文

共 108 条

[1] Spectral energy distributions of Seyfert nuclei [J].

Alonso-Herrero, A ;

Quillen, AC ;

Rieke, GH ;

Ivanov, VD ;

Efstathiou, A .

ASTRONOMICAL JOURNAL, 2003, 126 (01) :81-100

[2]

Aretxaga I, 1999, ASTROPHYS J, V519, pL123, DOI 10.1086/312114

[3] Polarized broad-line emission from low-luminosity active galactic nuclei [J].

Barth, AJ ;

Filippenko, AV ;

Moran, EC .

ASTROPHYSICAL JOURNAL, 1999, 525 (02) :673-684

[4] A three-dimensional diagnostic diagram for Seyfert 2 galaxies: Probing X-ray absorption and Compton thickness [J].

Bassani, L ;

Dadina, M ;

Maiolino, R ;

Salvati, M ;

Risaliti, G ;

Della Ceca, R ;

Matt, G ;

Zamorani, G .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1999, 121 (02) :473-482

[5] HYDROMAGNETIC FLOWS FROM ACCRETION DISKS AND THE PRODUCTION OF RADIO JETS [J].

BLANDFORD, RD ;

PAYNE, DG .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1982, 199 (03) :883-903

[6] Dynamics of broad emission-line region in NGC 5548: Hydromagnetic wind model versus observations [J].

Bottorff, M ;

Korista, KT ;

Shlosman, I ;

Blandford, RD .

ASTROPHYSICAL JOURNAL, 1997, 479 (01) :200-221

[7] Dynamics of warm absorbing gas in Seyfert galaxies: NGC 5548 [J].

Bottorff, MC ;

Korista, KT ;

Schlosman, I .

ASTROPHYSICAL JOURNAL, 2000, 537 (01) :134-151

[8] The XMM-Newton and BeppoSAX view of the Ultra Luminous Infrared Galaxy MKN 231 [J].

Braito, V ;

Della Ceca, R ;

Piconcelli, E ;

Severgnini, P ;

Bassani, L ;

Cappi, M ;

Franceschini, A ;

Iwasawa, K ;

Malaguti, G ;

Marziani, P ;

Palumbo, GGC ;

Persic, M ;

Risaliti, G ;

Salvati, M .

ASTRONOMY & ASTROPHYSICS, 2004, 420 (01) :79-88

[9] Spitzer IRS spectra of a large sample of Seyfert galaxies:: A variety of infrared spectral energy distributions in the local active galactic nucleus population [J].

Buchanan, Catherine L. ;

Gallimore, Jack F. ;

O'Dea, Christopher P. ;

Baum, Stefi A. ;

Axon, David J. ;

Robinson, Andrew ;

Elitzur, Moshe ;

Elvis, Martin .

ASTRONOMICAL JOURNAL, 2006, 132 (01) :401-419

[10]

Chiaberge M, 1999, ASTRON ASTROPHYS, V349, P77

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