3 papers
astro-ph.CO2020
How Biased Are Halo Properties in Cosmological Simulations?
Philip Mansfield, Camille Avestruz
Cosmological N-body simulations have been a major tool of theorists for decades, yet many of the numerical issues that these simulations face are still unexplored. This paper measu…
astro-ph.GA2019
The Sheet of Giants: Unusual Properties of the Milky Way's Immediate Neighbourhood
Maria K. Neuzil, Philip Mansfield, Andrey V. Kravtsov
We quantify the shape and overdensity of the galaxy distribution in the `Local Sheet' within a sphere of Mpc, and compare these properties with the expectations of the CDM…
astro-ph.CO2019
The Three Causes of Low-Mass Assembly Bias
Philip Mansfield, Andrey V. Kravtsov
We present a detailed analysis of the physical processes that cause halo assembly bias -- the dependence of halo clustering on proxies of halo formation time. We focus on the origi…