activity
20052016
most citedThermal Instability & the Feedback Regulation of Hot Halos in Clusters, Groups, and Galaxies

353 citations · 2k across the 27 of their papers we have counts for

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Showing astro-ph.COShow all

7 papers · 1 filter

astro-ph.CO2012★ 19 cited

What Sets Temperature Gradients in Galaxy Clusters? Implications for non-thermal pressure support and mass-observable scaling relations

Michael McCourt, Eliot Quataert, Ian J. Parrish

We present a spherically symmetric model for the origin and evolution of the temperature profiles in the hot plasma filling galaxy groups and clusters. We find that the gas in clus…

astro-ph.CO2012★ 57 cited

The Effects of Anisotropic Viscosity on Turbulence and Heat Transport in the Intracluster Medium

Ian J. Parrish, Michael McCourt, Eliot Quataert +1

In the intracluster medium (ICM) of galaxy clusters, heat and momentum are transported almost entirely along (but not across) magnetic field lines. We perform the first fully self-…

astro-ph.CO2011★ 46 cited

Turbulent Pressure Support in the Outer Parts of Galaxy Clusters

Ian J. Parrish, Michael McCourt, Eliot Quataert +1

We use three-dimensional MHD simulations with anisotropic thermal conduction to study turbulence due to the magnetothermal instability (MTI) in the intracluster medium (ICM) of gal…

astro-ph.CO2011★ 353 cited

Thermal Instability & the Feedback Regulation of Hot Halos in Clusters, Groups, and Galaxies

Prateek Sharma, Michael McCourt, Eliot Quataert +1

Observations of clusters and groups imply that such halos are roughly in global thermal equilibrium, with heating balancing cooling when averaged over sufficiently long time- and l…

astro-ph.CO2010★ 55 cited

Cosmological MHD simulations of cluster formation with anisotropic thermal conduction

M. Ruszkowski, D. Lee, M. Bruggen +2

(abridged) The ICM has been suggested to be buoyantly unstable in the presence of magnetic field and anisotropic thermal conduction. We perform first cosmological simulations of ga…

astro-ph.CO2010★ 63 cited

Can conduction induce convection? The non-linear saturation of buoyancy instabilities in dilute plasmas

Michael McCourt, Ian J. Parrish, Prateek Sharma +1

We study the effects of anisotropic thermal conduction on low-collisionality, astrophysical plasmas using two and three-dimensional magnetohydrodynamic simulations. For weak magnet…