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Star Formation, Metallicity and Dust Properties Derived from the SAPM Galaxy Survey Spectra
S. Charlot, G. Kauffmann, M. Longhetti +4
We have derived star formation rates (SFRs), gas-phase oxygen abundances and effective dust absorption optical depths for a sample of galaxies drawn from the Stromlo-APM redshift s…
Cluster detection from surface-brightness fluctuations in SDSS data
Matthias Bartelmann, Simon D. M. White
Galaxy clusters can be detected as surface brightness enhancements in smoothed optical surveys. This method does not require individual galaxies to be identifiable, and enables clu…
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…