Hydrostatic mass bias for galaxy groups and clusters in the FLAMINGO simulations
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DOI: 10.1093/mnras/stae2798
Abstract: The masses of galaxy clusters are commonly measured from X-ray observations under the assumption of hydrostatic equilibrium (HSE). This technique is known to underestimate the true mass systematically. The fiducial FLAMINGO cosmological hydrodynamical simulation predicts… read more here.
Keywords: mass; mass bias; bias; hydrostatic mass ... See more keywords
Satellite quenching and morphological transformation of galaxies in groups and clusters
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DOI: 10.1093/mnras/stae747
Abstract: We investigate the role that dense environments have on the quenching of star formation and the transformation of morphology for a sample of galaxies selected from the Sloan Digital Sky Survey. We make a distinction… read more here.
Keywords: morphological transformation; star; star formation; groups clusters ... See more keywords
Implications of feedback solutions to the S8 tension for the baryon fractions of galaxy groups and clusters
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DOI: 10.1093/mnras/staf1055
Abstract: Recent large-scale structure (LSS) surveys have revealed a persistent tension in the value of $S_8=\sigma _8\sqrt{(\Omega _{\mathrm{m}}/0.3)}$ compared to predictions from the standard cosmological model. Although some studies indicate that baryonic effects are too small… read more here.
Keywords: baryon fractions; baryonic effects; baryon; galaxy groups ... See more keywords