3 papers
astro-ph.CO2026
Cluster Infall for Mass Calibration in the Stage-IV Era
Connor Sweeney, Eduardo Rozo
The outskirts of galaxy clusters present a promising avenue for constraining cluster masses in a way that is robust to the impact of baryonic physics. We assess the accuracy to whi…
astro-ph.CO2026
The Density Profile of Dynamical Halos
Tristen Shields, Edgar M. Salazar, Eduardo Rozo +3
Among the most fundamental properties of a dark matter halo is its density profile. Motivated by the recent proposal by GarcÃa et al. [R. GarcÃa et. al., MNRAS 521, 2464 (2023)]…
astro-ph.CO2026
Distinguishing Orbiting and Infalling Dark Matter Particles with Machine Learning
Ze'ev Vladimir, Calvin Osinga, Benedikt Diemer +2
Dark matter halos are typically defined as spheres that enclose some overdensity, but these sharp, somewhat arbitrary boundaries introduce non-physical artifacts such as backsplash…