430 citations · 7.5k across the 119 of their papers we have counts for
10 papers · 1 filter
GAMER-2: a GPU-accelerated adaptive mesh refinement code -- accuracy, performance, and scalability
Hsi-Yu Schive, John A. ZuHone, Nathan J. Goldbaum +3
We present GAMER-2, a GPU-accelerated adaptive mesh refinement (AMR) code for astrophysics. It provides a rich set of features, including adaptive time-stepping, several hydrodynam…
ALMA observations of molecular clouds in three group centered elliptical galaxies: NGC 5846, NGC 4636, and NGC 5044
Pasquale Temi, Alexandre Amblard, Myriam Gitti +4
We present new ALMA CO(2--1) observations of two well studied group-centered elliptical galaxies: NGC~4636 and NGC~5846. In addition, we include a revised analysis of Cycle 0 ALMA…
Digging for red nuggets: discovery of hot halos surrounding massive, compact, relic galaxies
N. Werner, K. Lakhchaura, R. E. A. Canning +2
We present the results of Chandra X-ray observations of the isolated, massive, compact, relic galaxies MRK 1216 and PGC 032873. Compact massive galaxies observed at z>2, also calle…
Shaken Snow Globes: Kinematic Tracers of the Multiphase Condensation Cascade in Massive Galaxies, Groups, and Clusters
M. Gaspari, M. McDonald, S. L. Hamer +16
We propose a novel method to constrain turbulence and bulk motions in massive galaxies, groups and clusters, exploring both simulations and observations. As emerged in the recent p…
Physical Origins of Gas Motions in Galaxy Cluster Cores: Interpreting Hitomi Observations of the Perseus Cluster
Erwin T. Lau, Massimo Gaspari, Daisuke Nagai +1
The Hitomi X-ray satellite has provided the first direct measurements of the plasma velocity dispersion in a galaxy cluster. It finds a relatively "quiescent" gas with a line-of-si…
Kinetic and radiative power from optically thin accretion flows
A. Sadowski, M. Gaspari
We perform a set of general relativistic, radiative, magneto-hydrodynamical simulations (GR-RMHD) to study the transition from radiatively inefficient to efficient state of accreti…
Unifying the micro and macro properties of AGN feeding and feedback
M. Gaspari, A. Sadowski
We unify the feeding and feedback of supermassive black holes with the global properties of galaxies, groups, and clusters, by linking for the first time the physical mechanical ef…
The Remarkable Similarity of Massive Galaxy Clusters From z~0 to z~1.9
M. McDonald, S. W. Allen, M. Bayliss +12
We present the results of a Chandra X-ray survey of the 8 most massive galaxy clusters at z>1.2 in the South Pole Telescope 2500 deg^2 survey. We combine this sample with previousl…
Preferential Heating and Acceleration of Heavy Ions in Impulsive Solar Flares
R. Kumar, D. Eichler, M. Gaspari +1
We simulate decaying turbulence in a homogeneous pair plasma using three dimensional electromagnetic particle-in-cell (PIC) method. A uniform background magnetic field permeates th…
The history of chemical enrichment in the intracluster medium from cosmological simulations
V. Biffi, S. Planelles, S. Borgani +8
The distribution of metals in the intracluster medium (ICM) of galaxy clusters provides valuable information on their formation and evolution, on the connection with the cosmic sta…