Equilibrium Models of Galaxy Clusters with Cooling, Heating and Conduction
arXiv:astro-ph/0303459 · doi:10.1086/376734
Abstract
It is generally argued that most clusters of galaxies host cooling flows in which radiative cooling in the centre causes a slow inflow. However, recent observations by Chandra and XMM conflict with the predicted cooling flow rates. Amongst other mechanisms, heating by a central active galactic nucleus and thermal conduction have been invoked in order to account for the small mass deposition rates. Here, we present a family of hydrostatic models for the intra-cluster medium where radiative losses are exactly balanced by thermal conduction and heating by a central source. We describe the features of this simple model and fit its parameters to the density and temperature profiles of Hydra A.
arXiv comment16 pages, submitted to ApJ
References in corpus (22)
- A Universal Density Profile from Hierarchical Clustering
- Evolution of Buoyant Bubbles in M87
- Chandra Observation of Abell 2142: Survival of Dense Subcluster Cores in a Merger
- Thermal Conduction in Clusters of Galaxies
- A moving cold front in the intergalactic medium of A3667
- M87 at 90cm: A Different Picture
- Cooling Flows as a Calorimeter of AGN Mechanical Power
- A High Resolution Study of the Hydra A Cluster with Chandra: Comparison of the Core Mass Distribution with Theoretical Predictions and Evidence for Feedback in the Cooling Flow
- Hot Bubbles from Active Galactic Nuclei as a Heat Source in Cooling Flow Clusters
- Models of Galaxy Clusters with Thermal Conduction
- Heating, conduction and minimum temperatures in cooling flows
- Regulation of the X-ray luminosity of clusters of galaxies by cooling and supernova feedback
- Bubbles, feedback and the intra-cluster medium: three-dimensional hydrodynamic simulations
- On the soft X-ray spectrum of cooling flows
- Chandra estimate of the magnetic field strength near the cold front in A3667
- Conduction and cooling flows
- Simulation of radio plasma in clusters of galaxies
- A survey for large image-separation lensed quasars
- Simulations of Buoyant Bubbles in Galaxy Clusters
- Transport phenomena in stochastic magnetic mirrors
- Mass-Temperature Relation of Galaxy Clusters: A Theoretical Study
- Are X-ray Clusters Cooled by Heat Conduction to the Surrounding Intergalactic Medium?
Cited by in corpus (16)
- On the prevalence of radio-loud AGN in brightest cluster galaxies: implications for AGN heating of cooling flows
- A thermally stable heating mechanism for the intracluster medium: turbulence, magnetic fields and plasma instabilities
- Thermal conduction in cosmological SPH simulations
- AGN heating and dissipative processes in galaxy clusters
- Turbulent pressure support and hydrostatic mass-bias in the intracluster medium
- Turbulent Mixing in Clusters of Galaxies
- Entropy "floor" and effervescent heating of intracluster gas
- The stability of buoyant bubbles in the atmospheres of galaxy clusters
- The interplay between radio galaxies and cluster environment
- The Effect of Thermal Conduction on the Virgo Cluster
- Heating Rate Profiles in Galaxy Clusters
- Buoyant Bubbles in a Cooling Intracluster Medium I. Hydrodynamic Bubbles
- Observable consequences of kinetic and thermal AGN feedback in elliptical galaxies and galaxy clusters
- Rapidly varying accretion and AGN feedback
- Magneto-Thermal Instability In Galaxy Clusters II: Three-Dimensional Simulations
- Tests of AGN Feedback Kernels in Simulated Galaxy Clusters