Results 11 to 20 of about 5,472,881 (330)
Applied Sciences, 2023 The present study is aimed at the development of a novel empirical base for application to ground-based astronomical telescopes. A Weather Research and Forecasting (WRF) model is used for description of atmospheric flow structure with a high spatial ...
A. Shikhovtsev +11 more
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Analytical simulations of the effect of satellite constellations on optical and near-infrared observations [PDF]
Astronomy & Astrophysics, 2021 Context. The number of satellites in low-Earth orbit is increasing rapidly and many tens of thousands of satellites are expected to be launched in the coming years.
C. Bassa +2 more
semanticscholar +1 more source
The Athena++ Adaptive Mesh Refinement Framework: Multigrid Solvers for Self-gravity
The Astrophysical Journal Supplement Series, 2023 We describe the implementation of multigrid solvers in the Athena++ adaptive mesh refinement (AMR) framework and their application to the solution of the Poisson equation for self-gravity.
Kengo Tomida, James M. Stone
doaj +1 more source
simba: Cosmological simulations with black hole growth and feedback [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We introduce the Simba simulations, the next generation of the Mufasa cosmological galaxy formation simulations run with Gizmo's meshless finite mass hydrodynamics.
R. Dav'e +5 more
semanticscholar +1 more source
Accelerating Polyhedral Discrete Element Method with CUDA
The Astronomical Journal, 2023 This paper presents an efficient CUDA-based implementation of a nonspherical discrete element method where irregular particles are described by using polyhedrons. Two strategies are employed to exploit the parallelism of the numerical method.
Tongge Wen, Xiangyuan Zeng
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Bridging astronomical, astrometric and geodetic scheduling for VGOS
Journal of Geodesy, 2023 Very Long Baseline Interferometry (VLBI) experiments are organized within the geodetic, astrometric and astronomical communities for different applications, requiring different observation strategies adopted in scheduling.
M. Schartner +4 more
semanticscholar +1 more source
Three-dimensional core-collapse supernova simulations of massive and rotating progenitors [PDF]
Monthly notices of the Royal Astronomical Society, 2020 We present 3D simulations of the core-collapse of massive rotating and non-rotating progenitors performed with the general relativistic neutrino hydrodynamics code coconut-fmt.
J. Powell, B. Müller
semanticscholar +1 more source
Report on the ASTERICS projects CORELib and ROAst [PDF]
EPJ Web of Conferences, 2019 Two projects included in the OBELICS work package of the ASTERICS cluster will be described: CORELib and ROAst. CORELib is a collection of simulated showers induced by primary cosmic rays and a common framework to produce and manage such large production.
Bozza Cristiano +3 more
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FIRE-2 simulations: physics versus numerics in galaxy formation [PDF]
Monthly notices of the Royal Astronomical Society, 2017 The Feedback In Realistic Environments (FIRE) project explores feedback in cosmological galaxy formation simulations. Previous FIRE simulations used an identical source code (“FIRE-1”) for consistency.
P. Hopkins +27 more
semanticscholar +1 more source
Proceedings of the National Academy of Sciences of the United States of America, 2022 Siginificance The glacial cycles of the last 3 My demonstrate the fundamental control of astronomical variations on Earth’s climate system. Sedimentary records of orbital climate cycles from much further in Earth’s past provide insights into its behavior
J. Landwehrs +7 more
semanticscholar +1 more source