88 citations · 718 across the 43 of their papers we have counts for
45 papers
A Nonlinear General Implicit Runge-Kutta Integrator for Multifluid Charged Dust and Gas
Mengxuan Chen, Hui Li, Chong-Chong He +3
Charged dust in magnetized gas is subject to aerodynamic drag and the Lorentz force, both of which can be difficult to model numerically in a fluid simulation where their character…
Magnetising the quokka code with fast, second-order accurate, error-correcting schemes for magnetohydrodynamics on GPUs
Neco Kriel, Elizabeth Cole-Kodikara, Benjamin Wibking +4
We implement a second-order accurate constrained transport (CT) magnetohydrodynamics (MHD) module with first-order flux correction in the open-source, adaptive mesh refinement (AMR…
AMReX-Astrophysics Microphysics: A set of microphysics routines for astrophysical simulation codes based on the AMReX library
Astro Microphysics Team, Khanak Bhargava, Abigail Bishop +15
The AMReX-Astrophysics Microphysics library provides a common set of microphysics routines (reaction networks and associated physics, equations of state, and various transport coef…
XMAGNET -- Stir before serving: a Lagrangian perspective on mixing-driven condensation in the intracluster medium
M. Fournier, P. Grete, M. Brüggen +4
We aim to characterize the thermodynamic and dynamical conditions leading to condensation in cluster cores, and to assess the role of magnetic fields. We implement a Monte-Carlo tr…
Magnetohydrodynamic Precipitation
G. M. Voit, B. D. Wibking, D. Yaldiz
Circumgalactic gas around massive galaxies generally has a volume-filling component -- an atmosphere -- with a temperature determined by the potential-well depth of the galaxy's ha…
QED V: Variations in metal loading of galactic winds with element nucleosynthetic origin
Aditi Vijayan, Mark R. Krumholz, Benjamin D. Wibking
Type Ia supernovae, type II supernovae, and asymptotic giant branch (AGB) stars are important sites of stellar nucleosynthesis, but they differ greatly in their rates, their locati…
A novel algorithm for GPU-accelerated particle-mesh interactions implemented in the QUOKKA code
Chong-Chong He, Benjamin D. Wibking, Aditi Vijayan +2
We present a novel, GPU-optimized algorithm for particle-mesh interactions in grid-based hydrodynamics simulations, designed for massively parallel architectures. This approach ove…
XMAGNET : Kinetic, Thermal and Magnetic AGN Feedback in Massive Galaxies at Halo Masses M
Deovrat Prasad, Philipp Grete, Brian O'Shea +5
The interplay between radiative cooling of the circumgalactic medium (CGM) and feedback heating governs the evolution of the universe's most massive galaxies. This paper presents s…
Precipitation plausible: magnetized thermal instability in the intracluster medium
Benjamin D. Wibking, G. Mark Voit, Brian W. O'Shea
Observations of galaxy-cluster cores reveal that AGN feedback is strongly associated with both a short central cooling time () and accumulation…
QUOKKA-based understanding of outflows (QED) -- III. Outflow loading and phase structure as a function of galactic environment
Aditi Vijayan, Mark R. Krumholz, Benjamin D. Wibking
We present results from a suite of 3D high-resolution hydrodynamic simulations of supernova-driven outflows from galactic disc regions with a range of gas surface density, metallic…
XMAGNET: Velocity structure functions of active galactic nucleus-driven turbulence in the multiphase intracluster medium
M. Fournier, P. Grete, M. Brüggen +5
Significant theoretical and observational efforts are underway to investigate the properties of turbulence in the hot plasma that pervades galaxy clusters. Spectroscopy has been us…
The XMAGNET exascale MHD simulations of SMBH feedback in galaxy groups and clusters: Overview and preliminary cluster results
Philipp Grete, Brian W. O'Shea, Forrest W. Glines +5
We present initial results from extremely well-resolved 3D magnetohydrodynamical simulations of idealized galaxy clusters, conducted using the AthenaPK code on the Frontier exascal…
Magnetic fields limit the mass of Population III stars even before the onset of protostellar radiation feedback
Piyush Sharda, Shyam H. Menon, Roman Gerasimov +5
The masses of Population III stars are largely unconstrained since no simulations exist that take all relevant primordial star formation physics into account. We perform the first…
Precipitation possible: turbulence-driven thermal instability with constrained entropy profiles
Benjamin D. Wibking, G. Mark Voit, Brian W. O'Shea
Precipitation of cold gas due to thermal instability in both galaxy clusters and the circumgalactic medium may regulate AGN feedback. We investigate thermal instability in idealize…
A New Superbubble Finding Algorithm: Description and Testing
Brock Wallin, Benjamin D. Wibking, G. Mark Voit
We present a new algorithm for identifying superbubbles in HI column density maps of both observed and simulated galaxies that has only a single adjustable parameter. The algorithm…
Analysis of the full Spitzer microlensing sample I: Dark remnant candidates and Gaia predictions
Krzysztof A. Rybicki, Yossi Shvartzvald, Jennifer C. Yee +70
In the pursuit of understanding the population of stellar remnants within the Milky Way, we analyze the sample of microlensing events observed by the Spitzer Space Teles…
A novel numerical method for mixed-frame multigroup radiation-hydrodynamics with GPU acceleration implemented in the QUOKKA code
Chong-Chong He, Benjamin D. Wibking, Mark R. Krumholz
Mixed-frame formulations of radiation-hydrodynamics (RHD), where the radiation quantities are computed in an inertial frame but matter quantities are in a comoving frame, are advan…
On the limitations of H alpha luminosity as a star formation tracer in spatially resolved observations
Zipeng Hu, Benjamin D. Wibking, Mark R. Krumholz +1
This study examines the limitations of H luminosity as a tracer of star formation rates (SFR) in spatially resolved observations. We carry out high-resolution simulations of a M…
An Asymptotically-Correct Implicit-Explicit Time Integration Scheme for Finite Volume Radiation-Hydrodynamics
Chong-Chong He, Benjamin D. Wibking, Mark R. Krumholz
Numerical radiation-hydrodynamics (RHD) for non-relativistic flows is a challenging problem because it encompasses processes acting over a very broad range of timescales, and where…
OGLE-2015-BLG-0845L: A low-mass M dwarf from the microlensing parallax and xallarap effects
Zhecheng Hu, Wei Zhu, Andrew Gould +51
We present the analysis of the microlensing event OGLE-2015-BLG-0845, which was affected by both the microlensing parallax and xallarap effects. The former was detected via the sim…
Quokka-based Understanding of Outflows (QED) I. Metal loading, phase structure, and convergence testing for Solar neighbourhood conditions
Aditi Vijayan, Mark R. Krumholz, Benjamin D. Wibking
Multiphase galactic outflows, generated by supernova feedback, are likely to be more metal-rich than the interstellar media from which they are driven due to incomplete mixing betw…
The sub-critical illusion: synthetic Zeeman effect observations from galactic zoom-in simulations
Zipeng Hu, Benjamin D. Wibking, Mark R. Krumholz
Mass-to-flux ratios measured via the Zeeman effect suggest the existence of a transition from a magnetically sub-critical state in HI clouds to a super-critical state in molecular…
A radiation hydrodynamics scheme on adaptive meshes using the Variable Eddington Tensor (VET) closure
Shyam H. Menon, Christoph Federrath, Mark R. Krumholz +3
We present a new algorithm to solve the equations of radiation hydrodynamics (RHD) in a frequency-integrated, two-moment formulation. Novel features of the algorithm include i) the…
VETTAM: A scheme for radiation hydrodynamics with adaptive mesh refinement using the variable Eddington tensor method
Shyam H. Menon, Christoph Federrath, Mark R. Krumholz +3
We present Variable Eddington Tensor-closed Transport on Adaptive Meshes (\texttt{VETTAM}), a new algorithm to solve the equations of radiation hydrodynamics (RHD) with support for…