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Galaxy Clusters in Hubble Volume Simulations: Cosmological Constraints from Sky Survey Populations
A. E. Evrard, T. J. MacFarland, H. M. P. Couchman +8
We use giga-particle N-body simulations to study galaxy cluster populations in Hubble Volumes of LCDM (Omega_m=0.3, Omega_Lambda=0.7) and tCDM (Omega_m=1) world models. Mapping pas…
Star Formation, Supernovae Feedback and the Angular Momentum Problem in Numerical CDM Cosmogony: Half Way There?
R. J. Thacker, H. M. P. Couchman
We present a smoothed particle hydrodynamic (SPH) simulation that reproduces a galaxy that is a moderate facsimile of those observed. The primary failing point of previous simulati…
The effect of radiative cooling on scaling laws of X-ray groups and clusters
O. Muanwong, P. A. Thomas, S. T. Kay +2
We have performed cosmological simulations in a CDM cosmology with and without radiative cooling, in order to study the effect of cooling on the cluster scaling relations. Our s…
How big were the first cosmological objects?
Roger M. Hutchings, F. Santoro, P. A. Thomas +1
We calculate the cooling times at constant density for halos with virial temperatures from 100 K to 10^5 K that originate from a 3-sigma fluctuation of a CDM power spectrum in thre…