446 citations · 1.8k across the 44 of their papers we have counts for
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The Physics of Wind-Fed Accretion
Christopher W. Mauche, Duane A. Liedahl, Shizuka Akiyama +1
We provide a brief review of the physical processes behind the radiative driving of the winds of OB stars and the Bondi-Hoyle-Lyttleton capture and accretion of a fraction of the s…
A Study of the Vertical Motion of Supernova Remnant Bubbles in the Interstellar Medium Drawn from the Results of Three-Dimensional MHD Simulations
E. A. Raley, R. L. Shelton, T. Plewa
In order to determine the circumstances under which isolated SNRs are capable of rising into and enriching the thick disk and galactic halo, simulations of supernova remnants are p…
Hydrodynamic and Spectral Simulations of HMXB Winds
Christopher W. Mauche, Duane A. Liedahl, Shizuka Akiyama +1
We describe preliminary results of a global model of the radiatively-driven photoionized wind and accretion flow of the high-mass X-ray binary Vela X-1. The full model combines FLA…
Detonating Failed Deflagration Model of Thermonuclear Supernovae II. Comparison to Observations
Daniel Kasen, Tomasz Plewa
We develop and demonstrate the methodology of testing multi-dimensional supernova models against observations by studying the properties of one example of the detonation from faile…
Crushing of interstellar gas clouds in supernova remnants II. X-ray emission
S. Orlando, F. Bocchino, G. Peres +3
AIMS. We study and discuss the time-dependent X-ray emission predicted by hydrodynamic modeling of the interaction of a SNR shock wave with an interstellar gas cloud. The scope inc…
A comparative study of disc-planet interaction
M. de Val-Borro, R. G. Edgar, P. Artymowicz +20
We perform numerical simulations of a disc-planet system using various grid-based and smoothed particle hydrodynamics (SPH) codes. The tests are run for a simple setup where Jupite…
Non-Spherical Core-Collapse Supernovae II. Late-Time Evolution of Globally Anisotropic Neutrino-Driven Explosions and Implications for SN 1987A
K. Kifonidis, T. Plewa, L. Scheck +2
Two-dimensional simulations of strongly anisotropic supernova explosions of a nonrotating 15 solar mass blue supergiant progenitor are presented, which follow the hydrodynamic evol…
Hybrid Characteristics: 3D radiative transfer for parallel adaptive mesh refinement hydrodynamics
Erik-Jan Rijkhorst, Tomasz Plewa, Anshu Dubey +1
We have developed a three-dimensional radiative transfer method designed specifically for use with parallel adaptive mesh refinement hydrodynamics codes. This new algorithm, which…
The Piecewise Parabolic Method for Multidimensional Relativistic Fluid Dynamics
A. Mignone, T. Plewa, G. Bodo
We present an extension of the Piecewise Parabolic Method to special relativistic fluid dynamics in multidimensions. The scheme is conservative, dimensionally unsplit, and suitable…
Spectral Signatures of Gravitationally Confined Thermonuclear Supernova Explosions
Daniel Kasen, Tomasz Plewa
We consider some of the spectral and polarimetric signatures of the gravitational confined detonation scenario for Type Ia supernova explosions. In this model, material produced by…
Validating the FLASH Code: Vortex-Dominated Flows
Greg Weirs, Vikram Dwarkadas, Tomek Plewa +2
As a component of the Flash Center's validation program, we compare FLASH simulation results with experimental results from Los Alamos National Laboratory. The flow of interest inv…
Global Anisotropies in Supernova Explosions and Pulsar Recoil
L. Scheck, T. Plewa, K. Kifonidis +2
We show by two-dimensional and first three-dimensional simulations of neutrino-driven supernova explosions that low (l=1,2) modes can dominate the flow pattern in the convective po…
Type Ia Supernovae: An Asymmetric Deflagration Model
A. C. Calder, T. Plewa, N. Vladimirova +2
We present the first high-resolution three-dimensional simulations of the deflagration phase of Type Ia supernovae that treat the entire massive white dwarf. We report the results…
Simulation of Vortex--Dominated Flows Using the FLASH Code
Vikram Dwarkadas, Tomek Plewa, Greg Weirs +2
We compare the results of two--dimensional simulations to experimental data obtained at Los Alamos National Laboratory in order to validate the FLASH code. FLASH is a multi--physic…
Pulsar Recoil by Large-Scale Anisotropies in Supernova Explosions
L. Scheck, T. Plewa, H. -T. Janka +2
Assuming that the neutrino luminosity from the neutron star core is sufficiently high to drive supernova explosions by the neutrino-heating mechanism, we show that low-mode (l = 1,…
Core Collapse and Then? The Route to Massive Star Explosions
H. -Th. Janka, R. Buras, K. Kifonidis +2
The rapidly growing base of observational data for supernova explosions of massive stars demands theoretical explanations. Central of these is a self-consistent model for the physi…
Sgr A* and Sgr A East: Intimate Life in the Galactic Center
Tomek Plewa, Michal Rozyczka
A hydrodynamic interaction between an old supernova remnant and a massive black hole is studied with the help of a high-resolution adaptive mesh refinement code. A series of multid…
AMRA: An Adaptive Mesh Refinement Hydrodynamic Code for Astrophysics
Tomek Plewa, Ewald Mueller
Implementation details and test cases of a newly developed hydrodynamic code, AMRA, are presented. The numerical scheme exploits the adaptive mesh refinement technique coupled to m…
Numerical hydrodynamics: SPH vs. AMR
Tomek Plewa
The advantages and disadvantages of two approaches to astrophysical hydrodynamics, Smoothed Particle Hydrodynamics and Adaptive Mesh Refinement, are briefly discussed together with…
The First Hours of a Core Collapse Supernova
K. Kifonidis, T. Plewa, H. -Th. Janka +1
New two-dimensional, high-resolution calculations of a core collapse supernova in a 15 Msol blue supergiant are presented, which cover the entire evolution from shock revival until…
High-resolution simulations and visualization of protoplanetary disks
P. Ciecielag, T. Plewa, M. Rozyczka
A problem of mass flow in the immediate vicinity of a planet embedded in a protoplanetary disk is studied numerically in two dimensions. Large differences in temporal and spatial s…
The First Five Minutes of a Core Collapse Supernova: Multidimensional Hydrodynamic Models
K. Kifonidis, T. Plewa, H. -Th. Janka +1
We present results of high-resolution two-dimensional simulations which follow the first five minutes of a core collapse supernova explosion in a 15 solar mass blue supergiant prog…
Reconstructing Cosmic Peculiar Velocities from the Mildly Nonlinear Density Field
Andrzej Kudlicki, Michal Chodorowski, Tomasz Plewa +1
We present a numerical study of the cosmic density vs. velocity divergence relation (DVDR) in the mildly non-linear regime. We approximate the dark matter as a non-relativistic pre…
The Consistent Multi-fluid Advection method
Tomasz Plewa, Ewald Mueller
Simple modifications for higher-order Godunov-type difference schemes are presented which allow for accurate advection of multi-fluid flows in hydrodynamic simulations. The constra…