Hitomi observations of Perseus support heating by mixing
arXiv:1608.07818 · doi:10.1093/mnrasl/slw231
Abstract
We compare the velocity dispersion of the intracluster medium (ICM) of the Perseus cluster of galaxies as observed by the Hitomi X-ray telescope to our three-dimensional hydrodynamical simulations of jet-inflated bubbles in cluster cooling flows, and conclude that the observations support the mixing-heating mechanism of the ICM. In the mixing-heating mechanism the ICM is heated by mixing of hot bubble gas with the ICM. This mixing is caused by vortices that are formed during the inflation process of the bubble. Sound waves and turbulence are also excited by the vortices, but they contribute less than 20 per cents to the heating of the ICM. Shocks that are excited by the jets contribute even less.
MNRAS, in press
References in corpus (13)
- PLUTO: a Numerical Code for Computational Astrophysics
- The Quiescent Intracluster Medium in the Core of the Perseus Cluster
- Turbulent Heating in Galaxy Clusters Brightest in X-rays
- Feedback Heating by Cosmic Rays in Clusters of Galaxies
- How AGN Jets Heat the Intracluster Medium -- Insights from Hydrodynamic Simulations
- A Very Deep Chandra Observation of the Galaxy Group NGC 5813: AGN Shocks, Feedback, and Outburst History
- The relation between gas density and velocity power spectra in galaxy clusters: high-resolution hydrodynamic simulations and the role of conduction
- Do sound waves transport the AGN energy in the Perseus Cluster?
- Turbulence and cooling in galaxy cluster cores
- Shaping the X-ray spectrum of galaxy clusters with AGN feedback and turbulence
- Evolution of X-ray cavities
- Sound Waves Excitation by Jet-Inflated Bubbles in Clusters of Galaxies
- Heating Cold Clumps by Jet-inflated Bubbles in Cooling Flow Clusters
Cited by in corpus (8)
- Recent Progress in Modeling the Macro- and Micro-Physics of Radio Jet Feedback in Galaxy Clusters
- Enhanced Polarized Emission from the One-Parsec-Scale Hotspot of 3C 84 as a Result of the Interaction with Clumpy Ambient Medium
- A Study of High-redshift AGN Feedback in SZ Cluster Samples
- Connecting turbulent velocities and magnetic fields in galaxy cluster simulations with active galactic nuclei jets
- XRISM Observation of the Ophiuchus Galaxy Cluster: Quiescent Velocity Structure in the Dynamically Disturbed Core
- On the Energy Coupling Efficiency of AGN Outbursts in Galaxy Clusters
- Implications of the mild gas motion found with Hitomi in the core of the Perseus cluster
- A jet-driven dynamo (JEDD) from jets-inflated bubbles in cooling flows