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High-performance computing simulations of self-gravity in astronomical agglomerates
SIMULATION, 2021This article describes the advances in the design, implementation, and evaluation of efficient algorithms for self-gravity simulations in astronomical agglomerates. Three algorithms are presented and evaluated: the occupied cells method, and two variations of the Barnes–Hut method using an octal and a binary tree.
Néstor Rocchetti +2 more
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Data modeling for analytical astronomical simulation VV and A
SPIE Proceedings, 2006This paper presents a novel analytical method for comparing simulation data with measured flight data to with the goal of proving Equivalence and Consistency between the model and the real data. Our method overcomes the problems of disparity in the inputs to the simulation and varying number of parameters between the simulation and the measured flight ...
James W. Handley +3 more
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MAISIE: a multipurpose astronomical instrument simulator environment
SPIE Proceedings, 2016Astronomical instruments often need simulators to preview their data products and test their data reduction pipelines. Instrument simulators have tended to be purpose-built with a single instrument in mind, and at- tempting to reuse one of these simulators for a different purpose is often a slow and difficult task.
Alan O'Brien +3 more
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Numerical simulation of astronomical observations with ISO-LWS
Il Nuovo Cimento C, 1993The purpose of this work is the numerical simulation of the ISO-LWS spectrometer output with a computer code aiming at obtaining data similar as far as possible to those to be gained during the mission. With such data the processing and analysis programmes will be tested in order to assess the instrument capabilities and limits.
E. Tommasi, P. Saraceno, R. Orfei
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CAOS: a numerical simulation tool for astronomical adaptive optics (and beyond)
SPIE Proceedings, 2004We present recent developments of the CAOS "system", an IDL-based Problem Solving Environment (PSE) whose original aim was to define and simulate as realistically as possible the behavior of a generic adaptive optics (AO) system, from the atmospheric propagation of light, to the sensing of the wave-front aberratoins and the correction through a ...
M. CARBILLET +12 more
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Large-Scale Multithreading Self-Gravity Simulations for Astronomical Agglomerates
2019 Winter Simulation Conference (WSC), 2019This article presents parallel multithreading self-gravity simulations for astronomical agglomerates, applying High Performance Computing techniques to allow the efficient simulation of systems with a large number of particles. Considering the time scales needed to properly simulate the processes involved in the problem, two parallel mesh-based ...
Sergio Nesmachnow +2 more
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AETC: a powerful web tool to simulate astronomical images
SPIE Proceedings, 2016We present the capabilities of the Advanced Exposure Time Calculator (AETC), a tool, publicly available via web interface (http://aetc.oapd.inaf.it/), aimed to simulate astronomical images obtained with any (given) telescope and instrument combination. The tool includes the possibility of providing an accurate modelling of PSF variations in the FoV, a ...
USLENGHI, MICHELA +2 more
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Simulation of Large-Scale Astronomical CCD Surveys
1989We present the first stage of a project to develop a computer model of a CCD camera system dedicated to galaxy surveys. We plan to improve old and develop new algorithms for reduction and analysis of digital astronomical images. We intend to apply our model to testing theories and observations of the large-scale distribution of galaxies, and data ...
Emilio E. Falco, Michael J. Kurtz
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Changes in the Unchangeable: Simulation of Transient Astronomical Phenomena with Stellarium
Proceedings of the International Astronomical Union, 2018AbstractThe open-source desktop planetarium Stellarium has become very popular in astronomical education and outreach. Our recent changes aim for its applicability in historical and archaeoastronomical simulation contexts. Apart from visualizing the seemingly perpetual regular motions of the celestial bodies, it can be used to visualize and demonstrate
Georg Zotti, Alexander Wolf
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