Cluster magnetic fields from active galactic nuclei Export

@article{citeulike:6090789, abstract = {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 MHD 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.}, archivePrefix = {arXiv}, author = {Sutter, P. M. and Ricker, P. M. and Yang, H. Y.}, citeulike-article-id = {6090789}, citeulike-linkout-0 = {http://arxiv.org/abs/0911.1029}, citeulike-linkout-1 = {http://arxiv.org/pdf/0911.1029}, day = {5}, eprint = {0911.1029}, keywords = {agn, clusters, code, fields, magnetic, simulations}, month = {Nov}, posted-at = {2009-11-09 22:05:41}, priority = {3}, title = {Cluster magnetic fields from active galactic nuclei}, url = {http://arxiv.org/abs/0911.1029}, year = {2009} }

TY - JOUR ID - citeulike:6090789 L3 - citeulike-article-id:6090789 N2 - 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 MHD 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. TI - Cluster magnetic fields from active galactic nuclei KW - agn KW - clusters KW - code KW - fields KW - magnetic KW - simulations AU - Sutter, PM AU - Ricker, PM AU - Yang, HY PY - 2009/Nov/05/ UR - http://arxiv.org/abs/0911.1029 ER -