Itasca Simulated Clusters project

A collaborative project to study the evolution of shocks and turbulence in the gas of cluster of galaxies, using highly resolved simulations with ENZO.


We used the cosmological grid code ENZO (v.2.1)   with tailored mesh refinement to increase the resolution everywhere within the cluster volume.
  • Each simulation start from a volume of 643 Mpc3 simulated with 400cells.
  • The innermost 6.43 Mpcis further refined 2times, down to a fixed resolution of 20kpc.
  • for the moment, we only used non-radiative runs


We ran on the ITASCA cluster hosted by the University of Minnesota.
To produce our sample, we used approximately ~260 000 core hours (~13 000 hours per cluster).


  • The catalog presently consists of 20 clusters with a mass range centred at ~1014  Msol.
  • For most objects, we saved ~200 timesteps at full resolution, to access their dynamical evolution in detail.

ID            M200                R200          Dyn. Status    Available Data ​​​IT90_0     0.77e14 Msol    0.88 Mpc       relaxed             z=0
​​​IT90_1     2.45e14 Msol    1.29 Mpc       perturbed 
​​​IT90_2     1.10e14 Msol    0.99 Mpc       relxed             
​​​IT90_3     0.72e14 Msol    0.86 Mpc       perturbed          z=0
​​​IT90_4     0.54e14 Msol    0.78 Mpc       relaxed 
​​​IT92_0     3.32e14 Msol    1.42 Mpc       perturbed ​​​
IT92_1     1.00e14 Msol    0.96 Mpc       relaxed 
IT92_3     1.17e14 Msol    1.01 Mpc        relaxed    


We share some of the interesting data of our ISC sample via the EU-supported B2share repository. 

Results and miscellanea

We give here a quick access to our results, in the form of scientific visualisation (cool ones!), papers and talks 


We have plenty of 3D movies showing the complex evolution of the gas in clusters, produced using   volume ray casting .
Explore Now



F. Vazza (University of Hamburg, Germany)
T. Jones (University of Minnesota, US)
D. Porter (University of Minnesota, US)
D. Wittor (University of Hamburg, US)
​M. Angelinelli (University of Bologna, Italy)
M. Brüggen (University of Hamburg, US)
G. Brunetti (IRA-INAF, Italy)
D. Ryu (UNIST, Korea)
C. Gheller (CSCS-ETHZ, Switzerland)