2.2k citations · 19k across the 152 of their papers we have counts for
7 papers · 1 filter
The Rockstar Phase-Space Temporal Halo Finder and the Velocity Offsets of Cluster Cores
Peter S. Behroozi, Risa H. Wechsler, Hao-Yi Wu
We present a new algorithm for identifying dark matter halos, substructure, and tidal features. The approach is based on adaptive hierarchical refinement of friends-of-friends grou…
Gravitationally Consistent Halo Catalogs and Merger Trees for Precision Cosmology
Peter S. Behroozi, Risa H. Wechsler, Hao-Yi Wu +3
We present a new algorithm for generating merger trees and halo catalogs which explicitly ensures consistency of halo properties (mass, position, and velocity) across timesteps. Ou…
Galaxies in X-ray Groups I: Robust Membership Assignment and the Impact of Group Environments on Quenching
Matthew R. George, Alexie Leauthaud, Kevin Bundy +19
Understanding the mechanisms that lead dense environments to host galaxies with redder colors, more spheroidal morphologies, and lower star formation rates than field populations r…
The integrated stellar content of dark matter halos
Alexie Leauthaud, Matthew R. George, Peter S. Behroozi +6
Measurements of the total amount of stars locked up in galaxies as a function of host halo mass contain key clues about the efficiency of processes that regulate star formation. We…
Haloes gone MAD: The Halo-Finder Comparison Project
Alexander Knebe, Steffen R. Knollmann, Stuart I. Muldrew +34
[abridged] We present a detailed comparison of fundamental dark matter halo properties retrieved by a substantial number of different halo finders. These codes span a wide range of…
New constraints on the evolution of the stellar-to-dark matter connection: a combined analysis of galaxy-galaxy lensing, clustering, and stellar mass functions from z=0.2 to z=1
Alexie Leauthaud, Jeremy Tinker, Kevin Bundy +20
Using data from the COSMOS survey, we perform the first joint analysis of galaxy-galaxy weak lensing, galaxy spatial clustering, and galaxy number densities. Carefully accounting f…