Parsec-scale jets and tori in seyfert galaxies

被引：0
作者：
Roy, AL [1 ]
Wrobel, JM
Wilson, AS
Ulvestad, JS
Norris, RP
Mundell, CG
Krichbaum, TP
Falcke, H
Colbert, EJM
机构：
[1] MPIFR, Bonn, Germany
[2] Natl Radio Astron Observ, Socorro, NM 87801 USA
[3] Univ Maryland, College Pk, MD 20742 USA
[4] ATNF, Epping, NSW 1710, Australia
[5] Liverpool John Moores Univ, ARI, Birkenhead, Merseyside, England
[6] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA
来源：
GALAXIES AND THEIR CONSTITUENTS AT THE HIGHEST ANGULAR RESOLUTIONS | 2001年 / 205期
关键词：
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
What causes the dichotomy between very powerful and very weak radio emission from AGNs? Perhaps the engines are the same but the jets get disrupted by dense ISM in radio-quiet objects, or else the engines are intrinsically different with jet power scaling with, say, black hole spin. To distinguish, one can look for interaction between the jets and the NLR and measure the jet speed close to the core using VLBI, before environmental effects become important. We find that in radio-quiet AGN, the jets appear slower and have a greater tendency to bend, and that one-sidedness and flat-spectrum cores are probably due to obscuration.
引用
收藏
页码：70 / 71
页数：2
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