Evolution and feedback of AGN jets of different cosmic ray composition
نویسندگان
چکیده
Jet feedback from active galactic nuclei (AGN) is one of the most promising mechanisms for suppressing cooling flows in cool-core clusters. However, composition AGN jets and bubbles remains uncertain; they could be thermally dominated, or dominated by cosmic-ray proton (CRp), electron (CRe), magnetic energy. In this work, we investigate evolution effects CRp CRe conducting 3D magnetohydrodynamic simulations jet-inflated intracluster medium using FLASH code. We present their energies, dynamics heating, model expected cavity-power versus radio-luminosity relation ($P_{\rm cav}-L_R$). find that inflated follow a very similar dynamical to even though within suffer significantly stronger synchrotron inverse-Compton cooling. This because, as lose energy, quickly become $\sim 30$ Myr. Their total energy stops decreasing with CR evolves similarly bubbles. The ability heat also comparable; cold gas formed via local thermal instabilities well suppressed both cases. different evolutionary trajectories on $P_{\rm cav}-L_R$ plane, but values are broadly consistent observed ranges FRI sources. discuss observational techniques have potential constraining
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2023
ISSN: ['0035-8711', '1365-8711', '1365-2966']
DOI: https://doi.org/10.1093/mnras/stad185