Results 71 to 80 of about 3,014 (195)

Caught in the Act: Detections of Recoiling Supermassive Black Holes from Simulations

The Astrophysical Journal
We study the detectability of supermassive black holes (SMBHs) with masses of M _•  ≳ 10 ^9 M _⊙ displaced by gravitational wave recoil kicks ( v _kick  = 0–2000 km s ^−1 ) in simulations of merging massive ( M _⋆  > 10 ^11 M _⊙ ) early-type galaxies ...
Alexander Rawlings, Peter H. Johansson, Thorsten Naab, Antti Rantala, Jens Thomas, Bianca Neureiter   +5 more
doaj   +1 more source

A Fast, Second-order Accurate Poisson Solver in Spherical Polar Coordinates

The Astrophysical Journal Supplement Series
We present an efficient and accurate algorithm for solving the Poisson equation in spherical polar coordinates with a logarithmic radial grid and open boundary conditions.
Jeonghyeon Ahn, Woong-Tae Kim, Yonghwi Kim   +2 more
doaj   +1 more source

Polarization Dynamics of X-Ray Synchrotron Emission from a Multi-zone Blazar Jet

The Astrophysical Journal
The polarization of X-ray synchrotron emission in blazars directly probes the magnetic field geometry and particle acceleration processes in relativistic jets.
B. de Jonge, H. Zhang, M. Errando, A. Gokus, P. L. Rabinowitz   +4 more
doaj   +1 more source

Using radio astronomical receivers for molecular spectroscopic characterization in astrochemical laboratory simulations: A proof of concept [PDF]

, 2017
Isabel Tanarro, Belén Alemán, P. de Vicente, J. D. Gallego, J. R. Pardo, Gonzalo Santoro, Koen Lauwaet, F. Tercero, A. Díaz-Pulido, E. Moreno, M. Agúndez, J. R. Goicoechea, Jesús Manuel Sobrado, J. A. López, L. Martı́nez, José Luis Doménech   +15 more
openalex   +3 more sources

Numerical simulations of the effects of astronomical forcing on nutrient supply and oxygen levels during the Devonian

, 2023
Loïc Sablon, Yves Goddéris, Anne‐Christine Da Silva, Michel Crucifix   +3 more
openalex   +1 more source

3D Convective Urca Process in a Simmering White Dwarf

The Astrophysical Journal
A proposed setting for thermonuclear (Type Ia) supernovae is a white dwarf that has gained mass from a companion to the point of carbon ignition in the core.
Brendan Boyd, Alan Calder, Dean Townsley, Michael Zingale   +3 more
doaj   +1 more source

Cholla-MHD: An Exascale-capable Magnetohydrodynamic Extension to the Cholla Astrophysical Simulation Code

The Astrophysical Journal
We present an extension of the massively parallel, GPU native, astrophysical hydrodynamics code Cholla to magnetohydrodynamics (MHD). Cholla solves the ideal MHD equations in their Eulerian form on a static Cartesian mesh utilizing the Van
Robert V. Caddy, Evan E. Schneider
doaj   +1 more source

Implementing Astronomical Potential and Wavelet Analysis to Improve Regional Tide Modeling

Computation
This study aimed to accurately simulate the main tidal characteristics in a regional domain featuring four open boundaries, with a primary focus on baroclinic tides.
Jihene Abdennadher, Moncef Boukthir
doaj   +1 more source

Sensitivity of Simulations of Double-detonation Type Ia Supernovae to Integration Methodology

The Astrophysical Journal
We study the coupling of hydrodynamics and reactions in simulations of the double-detonation model for Type Ia supernovae. When assessing the convergence of simulations, the focus is usually on spatial resolution; however, the method of coupling the ...
Michael Zingale, Zhi Chen, Melissa Rasmussen, Abigail Polin, Max Katz, Alexander Smith Clark, Eric T. Johnson   +6 more
doaj   +1 more source

The McXtrace AstroX toolbox: a general ray tracing software package for end to end simulation of x-ray optics for astronomical instrumentation [PDF]

, 2018
Erik Knudsen, Desirée Della Monica Ferreira, N. J. Westergaard, Sonny Massahi, Finn E. Christensen, Ivo Ferreira, Brian Shortt, Daniele Spiga   +7 more
openalex   +1 more source