Anomalous radio-loudness of Cygnus A and other powerful radio galaxies

被引：92

作者：

Barthel, PD

Arnaud, KA

机构：

[1] NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771

[2] UNIV MARYLAND,DEPT ASTRON,COLLEGE PK,MD 20742

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1996年 / 283卷 / 02期

关键词：

galaxies; active; intergalactic medium; infrared; radio continuum;

D O I：

10.1093/mnras/283.2.L45

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The nearby, extremely powerful radio galaxy Cygnus A stands out as having an atypically low far-infrared/radio luminosity ratio. It is demonstrated that in objects displaying such a low ratio the radio-loudness is anomalously high, which fact is connected to these objects inhabiting dense X-ray haloes. The enhanced radio emission is most likely due to strong radiation losses in the dense environment, It must be concluded that radio luminosity is not a good measure of AGN power.

引用

收藏

页码：L45 / L49

页数：5

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