288 citations · 2.9k across the 60 of their papers we have counts for
9 papers · 1 filter
Multidimensional Modeling of Type I X-ray Bursts. I. Two-Dimensional Convection Prior to the Outburst of a Pure Helium Accretor
C. M. Malone, A. Nonaka, A. S. Almgren +2
We present multidimensional simulations of the early convective phase preceding ignition in a Type I X-ray burst using the low Mach number hydrodynamics code, MAESTRO. A low Mach n…
Induced Rotation in 3D Simulations of Core Collapse Supernovae: Implications for Pulsar Spins
E. Rantsiou, A. Burrows, J. Nordhaus +1
It has been suggested that the observed rotation periods of radio pulsars might be induced by a non-axisymmetric spiral-mode instability in the turbulent region behind the stalled…
3D simulations of Rayleigh-Taylor mixing in core-collapse SNe with CASTRO
C. C. Joggerst, A. Almgren, S. E. Woosley
We present multidimensional simulations of the post-explosion hydrodynamics in three different 15 solar mass supernova models with zero, 10^{-4} solar metallicity, and solar metall…
MAESTRO, CASTRO, and SEDONA -- Petascale Codes for Astrophysical Applications
A. Almgren, J. Bell, D. Kasen +6
Performing high-resolution, high-fidelity, three-dimensional simulations of Type Ia supernovae (SNe Ia) requires not only algorithms that accurately represent the correct physics,…
Dimension as a Key to the Neutrino Mechanism of Core-Collapse Supernova Explosions
J. Nordhaus, A. Burrows, A. Almgren +1
We explore the dependence on spatial dimension of the viability of the neutrino heating mechanism of core-collapse supernova explosions. We find that the tendency to explode is a m…
Two Dimensional Simulations of Pair-Instability Supernovae
Ke-Jung Chen, Alexander Heger, Ann S. Almgren
We present preliminary results from two dimensional numerical studies of pair instability supernova (PSN). We study nuclear burning, hydrodynamic instabilities and explosion of ver…