Simulation-based priors that depend on cluster morphology allow mock X-ray/SZ cluster samples to recover the input Hubble constant with 4% (100 clusters) and 1.5% (1000 clusters) precision plus a systematic floor of 0.6–0.8 km/s/Mpc.
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Stacking analysis of eROSITA observations detects statistically significant X-ray signal from hot gas out to 2 r_200m with a transition at the halo boundary, showing higher gas spread than in IllustrisTNG simulations.
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The Three Hundred Project: Validating $H_0$ inference from mock X-ray and millimetre analyses of galaxy clusters
Simulation-based priors that depend on cluster morphology allow mock X-ray/SZ cluster samples to recover the input Hubble constant with 4% (100 clusters) and 1.5% (1000 clusters) precision plus a systematic floor of 0.6–0.8 km/s/Mpc.
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The SRG/eROSITA All-Sky Survey. Detection of shock-heated gas beyond the halo boundary into the accretion region
Stacking analysis of eROSITA observations detects statistically significant X-ray signal from hot gas out to 2 r_200m with a transition at the halo boundary, showing higher gas spread than in IllustrisTNG simulations.