Cluster Magnetic Fields from Active Galactic Nuclei

被引：0
|
作者：
Sutter, P. M. [1 ]
Ricker, P. M. [2 ]
Yang, H. -Y [2 ,3 ]
机构：
[1] Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA
[2] Univ Illinois, Dept Astron, Urbana, IL 61801 USA
[3] Univ Illinois, Natl Ctr Supercomp Applicat, Urbana, IL 61801 USA
来源：
MONSTER'S FIERY BREATH: FEEDBACK IN GALAXIES, GROUPS, AND CLUSTERS | 2009年 / 1201卷
关键词：
galaxies: clusters; cooling flows; MHD; active galatic nuclei; methods: numerical;
D O I：
10.1063/1.3293073
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Active galactic nuclei (AGN) found at the centers of clusters of galaxies are a possible source for weak cluster-wide magnetic fields. To evaluate this scenario, we present 3D adaptive mesh refinement MUD simulations of a cool-core cluster that include injection of kinetic, thermal, and magnetic energy via an AGN-powered jet. Using the MHD solver in FLASH 2, we compare several sub-resolution approaches that link the estimated accretion rate as measured on the simulation mesh to the accretion rate onto the central black hole and the resulting feedback. We examine the effects of magnetized outflows on the accretion history of the black hole and discuss the ability of these models to magnetize the cluster medium.
引用
收藏
页码：346 / +
页数：2
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