Properties of the two-temperature corona model for active galactic nuclei and galactic black hole X-ray Binaries

被引：22

作者：

Janiuk, A ^{[1
]}

Czerny, B ^{[1
]}

机构：

[1] N Copernicus Astron Ctr, PL-00716 Warsaw, Poland

来源：

NEW ASTRONOMY | 2000年 / 5卷 / 01期

关键词：

accretion; accretion disks; black hole physics; galaxies : active; X-rays : galaxies; X-rays : stars;

D O I：

10.1016/S1384-1076(99)00051-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study in detail the properties of the accreting corona model for active galactic nuclei and galactic black hole X-ray Binaries. In this model the fraction of the energy liberated in the corona at a given radius is calculated from the global parameters of the model (mass of the central object, accretion rate and viscosity parameter) and it appears to be a strong function of the radius. The model predicts the relative decrease of the coronal hard X-ray emission with an increase of the accretion rate. The presented description of disc/corona interaction forms a basis for further studies of disc disruption mechanism. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：7 / 24

页数：18

共 68 条

[1] THERMAL COUPLING OF IONS AND ELECTRONS BY COLLECTIVE EFFECTS IN 2-TEMPERATURE ACCRETION FLOWS [J].