Results 11 to 20 of about 120,169 (292)
Simulations of astronomical imaging phased arrays [PDF]
Journal of the Optical Society of America A, 2007 We describe a theoretical procedure for analyzing astronomical phased arrays with overlapping beams, and apply the procedure to simulate a simple example.
Hobson, Michael P. +2 more
core +3 more sources
The Design and Simulation of an Astronomical Clock [PDF]
Applied Sciences, 2021 This paper describes and explains the synthesis of an astronomical clock mechanism which displays the mean position of the Sun, the Moon, the lunar node and zodiac circle as well as the Moon phases and their motion during the year as seen from the Earth. The clock face represents the stereographic projection of the celestial equator, celestial tropics,
Branislav Popkonstantinović +6 more
openaire +4 more sources
Astronomical Image Simulation for Telescope and Survey Development [PDF]
Publications of the Astronomical Society of the Pacific, 2010 10 pages, 5 figures, 3 tables, PASP accepted. Now includes reference to shapelets image simulation code 'Skylens' by Meneghetti et al. (2008)
Dobke, Benjamin M. +6 more
openaire +4 more sources
Computer Simulations of Astronomical Phenomena [PDF]
International Astronomical Union Colloquium, 1990 The basic idea of this project is to introduce a senior student to an astronomical phenomenon that he analyses carefully and simulates on the graphic screen of a personal computer. In a second step, this simulation serves as a demonstration for junior students.Three examples are presented here: the retrograde motion of the planets, the Earth’s rotation,
A. Noels, R. Papy
openaire +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
Interactive Visualization and Simulation of Astronomical Nebulae [PDF]
Computing in Science & Engineering, 2012 Interactive visualization and simulation of astrophysical phenomena help astronomers and enable digital planetariums and television documentaries to take their spectators on a journey into deep space to explore the astronomical wonders of our universe in 3D.
Wenger, Stephan +5 more
openaire +2 more sources
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
doaj +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
doaj +1 more source
Effect of the Environment on the Fundamental Plane of Elliptical Galaxies [PDF]
, 2000 We present an analysis of interacting E/S0 galaxies location on the Fundamental Plane. Using the NEMO package, we performed N-body simulations of close encounters and mergers between two spherical galaxies.
Evstigneeva, E. A. +2 more
core +3 more sources
A simulated annealing algorithm to quantify patterns in astronomical data [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 ABSTRACT We develop an optimization algorithm, using simulated annealing for the quantification of patterns in astronomical data based on techniques developed for robotic vision applications. The methodology falls in the category of cost minimization algorithms and it is based on user-determined interaction – among the pattern elements –
Chira, Maria, Plionis, Manolis
openaire +2 more sources