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Fig. 11.

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Comparison of spherically averaged radial profiles of the CR pressure (Pcr; lower panel) and the ratio of nonthermal-to-thermal pressures (upper panel) between TNG-CR and other cosmological simulations: FIRE-2 and Auriga. Gray and black curves correspond to halos from FIRE-2, coral to multiple CR physics variations of Auriga halo 6 (Au6), and red (stellar mass matched) and orange (halo-mass matched) to those from TNG-CR. While the Pcr profiles are in broad agreement between TNG-CR and FIRE-2, the type of pressure support in these halos is significantly different: in TNG-CR, halos are dominated by nonthermal (thermal) support in the inner (outer) regions, largely independent of halo mass. In contrast, low (high) mass halos in FIRE-2 are almost always dominated by thermal (nonthermal) support. Results of Au6 depend on the CR physics, but profiles of pressure ratios are typically more qualitatively similar to TNG-CR than to FIRE-2.

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