THE POLARIZATION OF THERMAL-RADIATION FROM SUPERMASSIVE ACCRETION DISKS

被引：22

作者：

COLEMAN, HH

SHIELDS, GA

机构：

[1] Department of Astronomy, University of Texas, Austin, TX

[2] Department of Astronomy, University of Texas, Austin

来源：

ASTROPHYSICAL JOURNAL | 1990年 / 363卷 / 02期

关键词：

Galaxies: nuclei; Polarization; Quasars; Radiation mechanisms;

D O I：

10.1086/169354

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Thermal radiation from an accretion disk is a promising explanation for the optical-ultraviolet "bump" noted in the spectra of active galactic nuclei (AGN). However, the expected polarization of radiation from a standard thin disk conflicts with observation. We have computed the polarization of light emitted by a thin disk with a rough surface and by a thick disk (radiation torus). We find improved agreement with observations, particularly in the case of a thick disk.

引用

页码：415 / 421

页数：7

共 20 条

[1] THICK ACCRETION DISKS WITH SUPER-EDDINGTON LUMINOSITIES
ABRAMOWICZ, MA
CALVANI, M
NOBILI, L
[J]. ASTROPHYSICAL JOURNAL, 1980, 242 (02) : 772 - 788
[2] ANTONUCCI R, 1988, SUPERMASSIVE BLACK H, P26
[3] Begelman M. C., 1985, ASTROPHYSICS ACTIVE, P411
[4] Chandrasekhar S., 1950, RAD TRANSFER
[5] POLARIZATION OF THERMAL-RADIATION FROM ACCRETION DISKS IN DWARF NOVAE
CHENG, FH
SHIELDS, GA
LIN, DNC
PRINGLE, JE
[J]. ASTROPHYSICAL JOURNAL, 1988, 328 (01) : 223 - 231
[6] CZERNY B, 1987, AP J, V321, P3005
[7] Gnedin Yu. N., 1978, Soviet Astronomy, V22, P325
[8] BLACK-HOLES IN BINARY-SYSTEMS - INSTABILITY OF DISK ACCRETION
LIGHTMAN, AP
EARDLEY, DM
[J]. ASTROPHYSICAL JOURNAL, 1974, 187 (01) : L1 - L3
[9] THICK ACCRETION DISKS AROUND BLACK-HOLES AND THE UV/SOFT X-RAY EXCESS IN QUASARS
MADAU, P
[J]. ASTROPHYSICAL JOURNAL, 1988, 327 (01) : 116 - 127
[10] THE ULTRAVIOLET EXCESS OF SEYFERT-1 GALAXIES AND QUASARS
MALKAN, MA
SARGENT, WLW
[J]. ASTROPHYSICAL JOURNAL, 1982, 254 (01) : 22 - 37

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