Simulating Astro-E2 Observations of Galaxy Clusters: the Case of Turbulent Cores Affected by Tsunamis
arXiv:astro-ph/0412353 · doi:10.1086/428042
Abstract
This is the first attempt to construct detailed X-ray spectra of clusters of galaxies from the results of high-resolution hydrodynamic simulations and simulate X-ray observations in order to study velocity fields of the intracluster medium (ICM). The hydrodynamic simulations are based on the recently proposed tsunami model, in which cluster cores are affected by bulk motions of the ICM and turbulence is produced. We note that most other solutions of the cooling flow problem also involve the generation of turbulence in cluster cores. From the mock X-ray observations with Astro-E2 XRS, we find that turbulent motion of the ICM in cluster cores could be detected with the satellite. The Doppler shifts of the metal lines could be used to discriminate among turbulence models. The gas velocities measured through the mock observations are consistent with the line-emission weighted values inferred directly from hydrodynamic simulations.
arXiv comment13 pages, 2 figures, ApJL in press. Movies are available at http://th.nao.ac.jp/tsunami/index.htm
References in corpus (19)
- A deep Chandra observation of the Perseus cluster: shocks and ripples
- X-ray Imaging Spectroscopy of Abell 1835
- Off-Axis Cluster Mergers: Effects of a Strongly Peaked Dark Matter Profile
- X-ray Spectroscopy of the Cluster of Galaxies Abell 1795 with XMM-Newton
- Cooling Flows as a Calorimeter of AGN Mechanical Power
- Semi-analytic predictions for statistical properties of X-ray clusters of galaxies in cold dark matter universes
- Chandra Observation of the Radio Source / X-ray Gas Interaction in the Cooling Flow Cluster Abell 2052
- Hot Bubbles from Active Galactic Nuclei as a Heat Source in Cooling Flow Clusters
- XMM-Newton observations of the cluster of galaxies Sersic 159-03
- Fragmentation of a Molecular Cloud Core versus Fragmentation of the Massive Protoplanetary Disk in the Main Accretion Phase
- Turbulence in Clusters of Galaxies and X-Ray Line Profiles
- X-Ray Probing of the Central Regions of Clusters of Galaxies
- Two-Temperature Intracluster Medium in Merging Clusters of Galaxies
- Simple models of cooling flows
- Strong Turbulence in the Cool Cores of Galaxy Clusters: Can Tsunamis Solve the Cooling Flow Problem?
- Turbulent Mixing in Clusters of Galaxies
- Cosmological SPH simulations with four million particles: statistical properties of X-ray clusters in a low-density universe
- Tsunamis in Galaxy Clusters: Heating of Cool Cores by Acoustic Waves
- Cooling of X-ray Emitting Gas by Heat Conduction in the Center of Cooling Flow Clusters
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- Suzaku Observation of the Ophiuchus Galaxy Cluster: One of the Hottest Cool Core Clusters
- Stable Heating of Cluster Cooling Flows by Cosmic-Ray Streaming
- On Heating of Cluster Cooling Flows by Sound Waves
- Simulating Astro-H Observations of Sloshing Gas Motions in the Cores of Galaxy Clusters
- Constraining hydrostatic mass bias of galaxy clusters with high-resolution X-ray spectroscopy
- Chandra Observations of A2670 and A2107: A Comet Galaxy and cDs with Large Peculiar Velocities
- Detecting Intracluster Gas Motion in Galaxy Clusters: Mock Astro-E2 Observations
- Non-steady heating of cool cores of galaxy clusters by ubiquitous turbulence and AGN
- A Simple Measurement of Turbulence in Cores of Galaxy Clusters
- Astrophysics in 2005
- The Difficulty of the Heating of Cluster Cooling Flows by Sound Waves and Weak Shocks