Cyclo-synchrotron emission from magnetically dominated active regions above accretion discs

被引：37

作者：

DiMatteo, T ^{[1
]}

Celotti, A ^{[1
]}

Fabian, AC ^{[1
]}

机构：

[1] SISSA,I-34014 TRIESTE,ITALY

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1997年 / 291卷 / 04期

关键词：

accretion; accretion discs; magnetic fields; radiation mechanisms; thermal; binaries; general; galaxies; active;

D O I：

10.1093/mnras/291.4.805

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss the role of thermal cyclo-synchrotron emission in a magnetically dominated corona above an accretion disc in an active galaxy or a Galactic black hole candidate. The dissipation occurs in localized active regions around the central black hole. Cyclo-synchrotron radiation is found to be an important process. In the case of Galactic black hole candidates, its emission can dominate the inverse Compton scattering of the soft photon field produced in the disc by thermal electrons. We discuss observational predictions and the detectability of cyclo-synchrotron radiation both for these sources and for radio-quiet active galactic nuclei.

引用

页码：805 / 810

页数：6

共 57 条

[21] A MODEL FOR THE X-RAY AND ULTRAVIOLET EMISSION FROM SEYFERT-GALAXIES AND GALACTIC BLACK-HOLES [J].