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Comparing galaxy formation in semi-analytic models and hydrodynamical simulations
Peter D. Mitchell, Cedric G. Lacey, Claudia D. P. Lagos +7
It is now possible for hydrodynamical simulations to reproduce a representative galaxy population. Accordingly, it is timely to assess critically some of the assumptions of traditi…
The Pan-STARRS1 Medium-deep Survey: Star Formation Quenching in Group and Cluster Environments
Hung-Yu Jian, Lihwai Lin, Kai-Yang Lin +16
We make use of a catalog of 1600 Pan-STARRS1 groups produced by the probability friends-of-friends algorithm to explore how the galaxy properties, i.e. the specific star formation…
Globular clusters vs dark matter haloes in strong lensing observations
Qiuhan He, Ran Li, Sungsoon Lim +4
Small distortions in the images of Einstein rings or giant arcs offer the exciting prospect of detecting dark matter haloes or subhaloes of mass below M, most of wh…
The core-cusp problem: a matter of perspective
Anna Genina, Alejandro Benitez-Llambay, Carlos S. Frenk +6
The existence of two kinematically and chemically distinct stellar subpopulations in the Sculptor and Fornax dwarf galaxies offers the opportunity to constrain the density profile…
Revisiting HOD model assumptions: the impact of AGN feedback and assembly bias
Nuala McCullagh, Peder Norberg, Shaun Cole +3
The standard Halo Occupation Distribution (HOD) models were originally developed based on results from semi-analytic and hydrodynamical galaxy formation models. Those models have s…
Predictions for deep galaxy surveys with JWST from CDM
William Cowley, Carlton Baugh, Shaun Cole +2
We present predictions for the outcome of deep galaxy surveys with the () obtained from a physical model of galaxy formation in CDM. We…