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20072018
most citedThermal Instability & the Feedback Regulation of Hot Halos in Clusters, Groups, and Galaxies

353 citations · 2k across the 23 of their papers we have counts for

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Showing astro-ph.COShow all

6 papers · 1 filter

astro-ph.CO2013★ 38 cited

Thermal Conduction and Multiphase Gas in Cluster Cores

Baban Wagh, Prateek Sharma, Michael McCourt

We examine the role of thermal conduction and magnetic fields in cores of galaxy clusters through global simulations of the intracluster medium (ICM). In particular, we study the i…

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★ 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…