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3rd ICM Theory and Computation Workshop

11–14 Aug 2014
Niels Bohr Institute
Europe/Copenhagen timezone

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Session

Tuesday afternoon

12 Aug 2014, 13:45
Auditorium A (Niels Bohr Institute)

Auditorium A

Niels Bohr Institute

Blegdamsvej 17 Copenhagen

Conveners

Tuesday afternoon

  • Alexander Schekochihin (University of Oxford)

Presentation materials

There are no materials yet.

  1. 28. Magnetohydrodynamics in a Weakly Collisional Intracluster Medium
    Prof. James Stone (Princeton University)
    12/08/2014, 13:45
    Program
    The intracluster medium (ICM) of galaxy clusters is a weakly collisional plasma in which the transport of heat and momentum occurs primarily along magnetic-field lines. Anisotropic heat conduction allows convective instabilities to be driven by temperature gradients of either sign: the magnetothermal instability (MTI) in the outskirts of clusters and the heat-flux buoyancy-driven instability...
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  2. 27. Magnetic fields and the Helium content in the intracluster medium
    Mr Thomas Berlok (NBIA)
    12/08/2014, 14:10
    Program
    Understanding whether Helium can sediment to the core of galaxy clusters is important for a number of problems in cosmology and astrophysics. For example, our ignorance in the distribution of Helium leads to systematic uncertainties in estimating the density and masses of galaxy clusters. All current models addressing this question are one-dimensional, and ignore the fact that the intracluster...
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  3. 6. Fluid flow experiments in galaxy clusters: Using cluster galaxies and minor mergers as probes for transport coefficients of the ICM
    Dr Elke Roediger (Hamburger Sternwarte)
    12/08/2014, 15:05
    Program
    The ICM transport properties (viscosity, thermal conductivity) and magnetic field structure are still ill-constrained. We use the ICM flows around gas-stripped elliptical cluster galaxies and in merging clusters as direct probes of these ICM properties. Galaxies moving through the ICM experience a head wind that strips off their gaseous atmospheres. The structure of the galaxy-ICM interface...
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  4. 2. Evolution (or not) of Cool Cores
    Mark Voit (Michigan State University)
    12/08/2014, 15:30
    Program
    Observational surveys seeking to measure evolution in the incidence and properties of cool cores in galaxy clusters have obtained seemingly contradictory results. Some claim to detect evolution. Others find no evolution. Reconciling these observations requires a closer look at how cool cores are defined and the physics that governs their characteristics.
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