On the redshift evolution of the spin parameter in cosmological simulations
Tomas Riera, Alexander Knebe, Chris Power, Robert Adriel Mostoghiu Paun, Adam Ussing
arXiv:2604.22738v1 Announce Type: new
Abstract: Although the spin parameter of dark matter halos is well known to follow a log-normal distribution at fixed epoch, its quantitative redshift evolution – encompassing both the mean and the dispersion – remains only partially explored. Prior studies either lack the mass resolution required to establish reliable evolutionary trends or do not provide analytical relations that enable forward modelling. Using a suite of LCDM N-body simulations with controlled resolution across the redshift range 0 arXiv:2604.22738v1 Announce Type: new
Abstract: Although the spin parameter of dark matter halos is well known to follow a log-normal distribution at fixed epoch, its quantitative redshift evolution – encompassing both the mean and the dispersion – remains only partially explored. Prior studies either lack the mass resolution required to establish reliable evolutionary trends or do not provide analytical relations that enable forward modelling. Using a suite of LCDM N-body simulations with controlled resolution across the redshift range 0

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