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Galaxy evolution in groups and clusters: satellite star formation histories and quenching time-scales in a hierarchical Universe
Satellite galaxies in groups and clusters are more likely to have low star formation rates (SFR) and lie on the red-sequence than central (field) galaxies. Using galaxy group/cluster catalogs from…
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Galaxy evolution in groups and clusters: star formation rates, red sequence fractions and the persistent bimodality
Using galaxy group/cluster catalogues created from the Sloan Digital Sky Survey Data Release 7, we examine in detail the specific star formation rate (SSFR) distribution of satellite galaxies and its…
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MERGERS AND BULGE FORMATION IN ΛCDM: WHICH MERGERS MATTER?
We use a suite of semi-empirical models to predict the galaxy–galaxy merger rate and relative contributions to bulge growth as a function of mass (both halo and stellar), redshift, and mass ratio.…
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FIRE-2 simulations: physics versus numerics in galaxy formation
The Feedback In Realistic Environments (FIRE) project explores feedback in cosmological galaxy formation simulations. Previous FIRE simulations used an identical source code (“FIRE-1”) for…
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MERGERS IN ΛCDM: UNCERTAINTIES IN THEORETICAL PREDICTIONS AND INTERPRETATIONS OF THE MERGER RATE
Different theoretical methodologies lead to order-of-magnitude variations in predicted galaxy–galaxy merger rates. We examine how this arises and quantify the dominant uncertainties. Modeling of dark…
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On the orbits of infalling satellite haloes
The orbital properties of infalling satellite haloes set the initial conditions which control the subsequent evolution of subhaloes and the galaxies that they host, with implications for mass…
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The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: the low-redshift sample
We report on the small scale (0:5 < r < 40h 1 Mpc) clustering of 78895 massive (M 10 11:3 M ) galaxies at 0:2 < z < 0:4 from the first two years of data from the Baryon Oscillation Spectroscopic…
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Not so lumpy after all: modelling the depletion of dark matter subhaloes by Milky Way-like galaxies
Among the most important goals in cosmology is detecting and quantifying small (M_(halo)≃10^(6−9) M⊙) dark matter (DM) subhaloes. Current probes around the Milky Way (MW) are most sensitive to such…
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Black holes on FIRE: stellar feedback limits early feeding of galactic nuclei
We introduce massive black holes (BHs) in the Feedback In Realistic Environments (FIRE) project and perform high-resolution cosmological hydrodynamic simulations of quasar-mass haloes [Mhalo(z = 2) ≈…
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WHAT DOES CLUSTERING TELL US ABOUT THE BUILDUP OF THE RED SEQUENCE?
We analyze the clustering of red and blue galaxies from four samples spanning a redshift range of 0.4 < z < 2.0 to test the various scenarios by which galaxies evolve onto the red sequence. The data…
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