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

页码：608 / 613

页数：6

共 35 条

[1] SPECTROPOLARIMETRY AND THE NATURE OF NGC-1068 [J].

ANTONUCCI, RRJ ;

MILLER, JS .

ASTROPHYSICAL JOURNAL, 1985, 297 (02) :621-632

[2] HOT DUST ON THE OUTSKIRTS OF THE BROAD-LINE REGION IN FAIRALL-9 [J].

CLAVEL, J ;

WAMSTEKER, W ;

GLASS, IS .

ASTROPHYSICAL JOURNAL, 1989, 337 (01) :236-250

[3] STEPS TOWARD DETERMINATION OF THE SIZE AND STRUCTURE OF THE BROAD-LINE REGION IN ACTIVE GALACTIC NUCLEI .1. AN 8 MONTH CAMPAIGN OF MONITORING NGC-5548 WITH IUE [J].

CLAVEL, J ;

REICHERT, GA ;

ALLOIN, D ;

CRENSHAW, DM ;

KRISS, G ;

KROLIK, JH ;

MALKAN, MA ;

NETZER, H ;

PETERSON, BM ;

WAMSTEKER, W ;

ALTAMORE, A ;

BARIBAUD, T ;

BARR, P ;

BECK, S ;

BINETTE, L ;

BROMAGE, GE ;

BROSCH, N ;

DIAZ, AI ;

FILIPPENKO, AV ;

FRICKE, K ;

GASKELL, CM ;

GIOMMI, P ;

GLASS, IS ;

GONDHALEKAR, P ;

HACKNEY, RL ;

HALPERN, JP ;

HUTTER, DJ ;

JORSATER, S ;

KINNEY, AL ;

KOLLATSCHNY, W ;

KORATKAR, A ;

KORISTA, KT ;

LAOR, A ;

LASOTA, JP ;

LEIBOWITZ, E ;

MAOZ, D ;

MARTIN, PG ;

MAZEH, T ;

MEURS, EJA ;

NAIR, AD ;

OBRIEN, P ;

PELAT, D ;

PEREZ, E ;

PEROLA, GC ;

PTAK, RL ;

RODRIGUEZPASCUAL, P ;

ROSENBLATT, EI ;

SADUN, AC ;

SANTOSLLEO, M ;

SHAW, RA .

ASTROPHYSICAL JOURNAL, 1991, 366 (01) :64-81

[4] THE NUCLEAR ACTIVITY OF INTERACTING GALAXIES [J].

DAHARI, O .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1985, 57 (04) :643-664

[5] A STATISTICAL STUDY OF PROPERTIES OF SEYFERT AND STARBURST GALAXIES [J].

DAHARI, O ;

DEROBERTIS, MM .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1988, 67 (03) :249-277

[6]

DEPOY DL, 1987, INFRARED ASTRONOMY A, P426

[7]

DURRET F, 1990, ASTRON ASTROPHYS, V238, P15

[8] BROAD-BAND PROPERTIES OF THE CFA SEYFERT-GALAXIES .2. INFRARED TO MILLIMETER PROPERTIES [J].

EDELSON, RA ;

MALKAN, MA ;

RIEKE, GH .

ASTROPHYSICAL JOURNAL, 1987, 321 (01) :233-250

[9]

FEDELMAN FR, 1982, APJ, V256, P427

[10]

GOODRICH RW, 1992, BAAS, V24, P1209

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