DUST RADIATION IN ACTIVE GALACTIC NUCLEI .1. SPHERICAL DISTRIBUTION

被引：12

作者：

LOSKA, Z ^{[1
]}

SZCZERBA, R ^{[1
]}

CZERNY, B ^{[1
]}

机构：

[1] NICHOLAS COPERNICUS ASTRON CTR, PL-87100 TORUN, POLAND

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1993年 / 261卷 / 01期

关键词：

DUST; EXTINCTION; GALAXIES; ACTIVE; ISM; NUCLEI; INFRARED;

D O I：

10.1093/mnras/261.1.63

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We model the infrared-ultraviolet spectrum assuming that the intrinsic radiation due to an accretion disc and a spherical power-law component is reprocessed by an optically thin dust cloud surrounding the nucleus. We find that in order to explain the infrared data for bright AGN we have to assume that only graphite grains are present. This means that the dereddening of optical/ultraviolet spectra should not be done using an extinction curve for graphite/silicate standard interstellar composition. However, further studies are necessary to determine the location of the dust along our line of sight.

引用

页码：63 / 73

页数：11

共 55 条

[1] 8-13 MU-M SPECTROPHOTOMETRY OF GALAXIES .4. 6 MORE SEYFERTS AND 3C-345 [J].