430 citations · 3.4k across the 66 of their papers we have counts for
7 papers · 2 filters
Mass Accretion and its Effects on the Self-Similarity of Gas Profiles in the Outskirts of Galaxy Clusters
Erwin T. Lau, Daisuke Nagai, Camille Avestruz +2
Galaxy clusters exhibit remarkable self-similar behavior which allows us to establish simple scaling relationships between observable quantities and cluster masses, making galaxy c…
Non-Equilibrium Electrons in the Outskirts of Galaxy Clusters
Camille Avestruz, Daisuke Nagai, Erwin T. Lau +1
The analysis of X-ray and Sunyaev-Zeldovich measurements of the intracluster medium (ICM) assumes that electrons are in thermal equilibrium with ions in the plasma. However, electr…
Temperature Structure of the Intra-Cluster Medium from SPH and AMR simulations
Elena Rasia, Erwin T. Lau, Stefano Borgani +8
Analyses of cosmological hydrodynamic simulations of galaxy clusters suggest that X-ray masses can be underestimated by 10% to 30%. The largest bias originates by both violation of…
The relation between gas density and velocity power spectra in galaxy clusters: high-resolution hydrodynamic simulations and the role of conduction
M. Gaspari, E. Churazov, D. Nagai +2
Exploring the ICM power spectrum can help us to probe the physics of galaxy clusters. Using high-resolution 3D plasma simulations, we study the statistics of the velocity field and…
Hydrodynamic Simulation of Non-thermal Pressure Profiles of Galaxy Clusters
Kaylea Nelson, Erwin T. Lau, Daisuke Nagai
Cosmological constraints from X-ray and microwave observations of galaxy clusters are subjected to systematic uncertainties. Non-thermal pressure support due to internal gas motion…
Testing X-ray Measurements of Galaxy Cluster Outskirts with Cosmological Simulations
Camille Avestruz, Erwin T. Lau, Daisuke Nagai +1
The study of galaxy cluster outskirts has emerged as one of the new frontiers in extragalactic astrophysics and cosmology with the advent of new observations in X-ray and microwave…
Analytical model for non-thermal pressure in galaxy clusters
Xun Shi, Eiichiro Komatsu
Non-thermal pressure in the intracluster gas has been found ubiquitously in numerical simulations, and observed indirectly. In this paper we develop an analytical model for intracl…