15–19 Aug 2022
Niels Bohr Institute
Europe/Copenhagen timezone

Stratified and multiphase turbulence in the intracluster medium

Speaker

Prateek Sharma (IISc Bangalore)

Description

The intracluster medium (ICM) is stratified so Kolmogorov’s picture of isotropic/homogeneous turbulence needs to be modified. Similarly, cool cores show multiphase gas with cold/dense clouds embedded in the diffuse hot ICM. I shall present results from idealized stratified turbulence simulations and idealized multiphase periodic box simulations with heating and cooling. I shall present common diagnostics such as structure functions, power spectra, and the scaling between rms density, pressure and turbulent Mach number. The pressure fluctuations, in contrast to density fluctuations, are a much better indicator of the turbulence Mach number. I shall make comparisons with cosmological simulations and discuss observational implications. (This work is mostly based on the PhD thesis of Rajsekhar Mohapatra)

Primary authors

Prof. Christoph Federrath (Australian National University) Prateek Sharma (IISc Bangalore) Mr Rajsekhar Mohapatra (Australian National University)

Presentation materials