284 citations · 802 across the 25 of their papers we have counts for
26 papers
Simulation to a Newborn Supernova Remnant from a Low-mass Iron Core Star
Sudarshan Neopane, Michael A. Sandoval, W. Raphael Hix +3
Supernova remnant observations show a high degree of asymmetry, mixing, and inhomogeneity. These asymmetries are seeded during the early seconds of the explosion and are further en…
Approximating General Relativity in Core-Collapse Supernova Simulations
Steven A. Fromm, Vassilios Mewes, O. E. Bronson Messer +3
We present formulations of effective potentials suitable for approximating general relativistic effects in Newtonian simulations of core-collapse supernovae. Assuming a spherically…
thornado+Flash-X: A Hybrid DG-IMEX and Finite-Volume Framework for Neutrino-Radiation Hydrodynamics in Core-Collapse Supernovae
Eirik Endeve, Vassilios Mewes, J. Austin Harris +15
We present neutrino-transport algorithms implemented in the toolkit for high-order neutrino-radiation hydrodynamics (thornado) and their coupling to self-gravitating hydrodynamics…
Tracer particles for core-collapse supernova nucleosynthesis: The advantages of moving backward
Andre Sieverding, Preston G. Waldrop, J. Austin Harris +4
After decades, the theoretical study of core-collapse supernova explosions is moving from parameterized, spherically symmetric models to increasingly realistic multi-dimensional si…
Comparison of the Core-Collapse Evolution of Two Nearly Equal Mass Progenitors
Stephen W. Bruenn, Andre Sieverding, Eric J. Lentz +6
We compare the core-collapse evolution of a pair of 15.8 stars with significantly different internal structures, a consequence of bimodal variability exhibited by massive…
Flash-X, a multiphysics simulation software instrument
Anshu Dubey, Klaus Weide, Jared O'Neal +28
Flash-X is a highly composable multiphysics software system that can be used to simulate physical phenomena in several scientific domains. It derives some of its solvers from FLASH…
Core Collapse Supernova Gravitational Wave Emission for Progenitors of 9.6, 15, and 25 Solar Masses
Anthony Mezzacappa, Pedro Marronetti, Ryan E. Landfield +8
We present gravitational wave emission predictions based on three core collapse supernova simulations corresponding to three different progenitor masses. The masses span a large ra…
The Impact of Resolution on Double-Detonation Models for Type Ia Supernovae
Fernando Rivas, J. Austin Harris, W. Raphael Hix +1
Thermonuclear supernovae are the result of the violent unbinding of a white dwarf, but the precise nature of the explosion mechanism(s) is a matter of active debate. To this end, s…
Three Dimensional Core-Collapse Supernova Simulations with 160 Isotopic Species Evolved to Shock Breakout
Michael A. Sandoval, W. Raphael Hix, O. E. Bronson Messer +2
We present three-dimensional simulations of core-collapse supernovae using the FLASH code that follow the progression of the explosion to the stellar surface, starting from neutrin…
A DG-IMEX method for two-moment neutrino transport: Nonlinear solvers for neutrino-matter coupling
M. Paul Laiu, Eirik Endeve, Ran Chu +2
Neutrino-matter interactions play an important role in core-collapse supernova (CCSN) explosions as they contribute to both lepton number and/or four-momentum exchange between neut…
Gravitational-wave signal of a core-collapse supernova explosion of a 15 Solar mass star
Anthony Mezzacappa, Pedro Marronetti, Ryan E. Landfield +8
We report on the gravitational wave signal computed in the context of a three-dimensional simulation of a core collapse supernova explosion of a 15 Solar mass star. The simulation…
On the character of turbulence in self-consistent models of core-collapse supernovae
Jordi Casanova, Eirik Endeve, Eric J. Lentz +4
Neutrino-driven convection plays a crucial role in the development of core-collapse supernova (CCSN) explosions. However, the complex mechanism that triggers the shock revival and…
Catching Element Formation In The Act
Chris L. Fryer, Frank Timmes, Aimee L. Hungerford +216
Gamma-ray astronomy explores the most energetic photons in nature to address some of the most pressing puzzles in contemporary astrophysics. It encompasses a wide range of objects…
Chimera: A massively parallel code for core-collapse supernova simulation
Stephen W. Bruenn, John M. Blondin, W. Raphael Hix +9
We provide a detailed description of the Chimera code, a code developed to model core collapse supernovae in multiple spatial dimensions. The core collapse supernova explosion mech…
Gravitational wave signals from multi-dimensional core-collapse supernova explosion simulations
K. N. Yakunin, E. Endeve, A. Mezzacappa +9
In this work we report briefly on the gravitational wave (GW) signal computed in the context of a self-consistent, 3D simulation of a core-collapse supernova (CCSN) explosion of a…
The Gravitational Wave Signal of a Core Collapse Supernova Explosion of a 15M Star
Konstantin N. Yakunin, Anthony Mezzacappa, Pedro Marronetti +7
In this Letter, we report on the gravitational wave signal computed in the context of an , three-dimensional simulation of a core collapse supernova explosion, beginni…
Implications for Post-Processing Nucleosynthesis of Core-Collapse Supernova Models with Lagrangian Particles
J. Austin Harris, W. Raphael Hix, Merek A. Chertkow +3
We investigate core-collapse supernova (CCSN) nucleosynthesis with self-consistent, axisymmetric (2D) simulations performed using the radiation-hydrodynamics code Chimera. Computat…
The Multi-Dimensional Character of Core-Collapse Supernovae
W. R. Hix, E. J. Lentz, S. W. Bruenn +7
Core-collapse supernovae, the culmination of massive stellar evolution, are spectacular astronomical events and the principle actors in the story of our elemental origins. Our unde…
Multimessengers from 3D Core-Collapse Supernovae
Konstantin N. Yakunin, Pedro Marronetti, Anthony Mezzacappa +5
We present gravitational wave and neutrino signatures obtained in our first principle 3D core-collapse supernova simulation of 15M non-rotating progenitor with Chimera code. Observ…
A Neutrino-Driven Core Collapse Supernova Explosion of a 15 M Star
Anthony Mezzacappa, Eric J. Lentz, Stephen W. Bruenn +8
We present results from an ab initio three-dimensional, multi-physics core collapse supernova simulation for the case of a 15 M progenitor. Our simulation includes multi-frequency…
Three-dimensional core-collapse supernova simulated using a 15 progenitor
Eric J. Lentz, Stephen W. Bruenn, W. Raphael Hix +7
We have performed ab initio neutrino radiation hydrodynamics simulations in three and two spatial dimensions (3D and 2D) of core-collapse supernovae from the same 15 prog…
Gravitational Wave Signatures of Ab Initio Two-Dimensional Core Collapse Supernova Explosion Models for 12-25 Solar Masses Stars
Konstantin N. Yakunin, Anthony Mezzacappa, Pedro Marronetti +9
We present the gravitational waveforms computed in ab initio two-dimensional core collapse supernova models evolved with the Chimera code for progenitor masses between 12 and 25 so…
Recent Progress on Ascertaining the Core Collapse Supernova Explosion Mechanism
Anthony Mezzacappa, Stephen W. Bruenn, Eric J. Lentz +8
We have been working within the fundamental paradigm that core collapse supernovae (CCSNe) may be neutrino driven, since the first suggestion of this by Colgate and White nearly fi…
Advancing Nucleosynthesis in Self-consistent, Multidimensional Models of Core-Collapse Supernovae
J. Austin Harris, W. Raphael Hix, Merek A. Chertkow +7
We investigate core-collapse supernova (CCSN) nucleosynthesis in polar axisymmetric simulations using the multidimensional radiation hydrodynamics code CHIMERA. Computational costs…