Results 21 to 30 of about 5,320,922 (369)

Global Vlasov simulation on magnetospheres of astronomical objects [PDF]

Journal of Physics: Conference Series, 2013
Space plasma is a collisionless, multi-scale, and highly nonlinear medium. There are various types of self-consistent computer simulations that treat space plasma according to various approximations. We develop numerical schemes for solving the Vlasov (collisionless Boltzmann) equation, which is the first-principle kinetic equation for collisionless ...
Takayuki Umeda, Yosuke Ito, Keiichiro Fukazawa   +2 more
openaire   +2 more sources

ScopeSim: a flexible general purpose astronomical instrument data simulation framework in Python [PDF]

Software and Cyberinfrastructure for Astronomy VI, 2020
15 pages, 4 figures, SPIE 2020 conference proceeding.
Leschinski, K., Buddelmeijer, H., Czoske, O., Verdugo, M., Verdoes-Kleijn, G., Zeilinger, W.   +5 more
openaire   +6 more sources

The crux of astronomical alignment in Neolithic Malta: Using 3D simulation to produce new data

Digital Applications in Archaeology and Cultural Heritage, 2022
Like many prehistoric monuments, the Neolithic Temples of Malta have been the subject of astronomical studies, aimed at identifying possible alignments with cosmological events. The orientations of several sites have been suggested as evidence of an interest in the movement of the sun, moon, and stars, and of the importance of certain days such as the ...
Robert P. Barratt
openaire   +4 more sources

End-to-end simulation framework for astronomical spectrographs: SOXS, CUBES, and ANDES [PDF]

Modeling, Systems Engineering, and Project Management for Astronomy XI
We present our numerical simulation approach for the End-to-End (E2E) model applied to various astronomical spectrographs, such as SOXS (ESO-NTT), CUBES (ESO-VLT), and ANDES (ESO-ELT), covering multiple wavelength regions. The E2E model aim at simulating the expected astronomical observations starting from the radiation of the scientific sources (or ...
Scaudo, A., Genoni, M., Causi, G. Li, Cabona, L., Landoni, M., Campana, S., Schipani, P., Claudi, R., Aliverti, M., Baruffolo, A., Ben-Ami, S., Biondi, F., Capasso, G., Cosentino, R., D'Alessio, F., D'Avanzo, P., Hershko, O., Kuncarayakti, H., Munari, M., Santhakumari, K. Radhakrishnan, Pignata, G., Rubin, A., Scuderi, S., Vitali, F., Young, D., Achrén, J., Araiza-Duran, J. A., Arcavi, I., Battaini, F., Brucalassi, A., Bruch, R., Cappellaro, E., Colapietro, M., Della Valle, M., De Pascale, M., Di Benedetto, R., D'Orsi, S., Gal-Yam, A., Hernandez, M., Kotilainen, J., Marty, L., Mattila, S., Rappaport, M., Ricci, D., Riva, M., Salasnich, B., Smartt, S., Sanchez, R. Zanmar, Stritzinger, M., Ventura, H., Cupani, G., Porru, M., Franchini, M., Cirami, R., Calderone, G., Covino, S., Smiljanic, R., Monteiro, M., Balestra, A., Sordo, R., Mason, E., Rousseu, S., Leão, I. de Castro, Zanutta, A., Martins, A. de Meideros, Sosnowska, D., Marquart, T., Boisse, I., Sousa, S., Hernandez, J., Piskunov, N., Puschnig, J., Senna, N., Martins, B., Di Marcantonio, P., Marconi, A.   +75 more
  +5 more sources

Seeing and turbulence profile simulations over complex terrain at the Thai National Observatory using a chemistry-coupled regional forecasting model

Monthly notices of the Royal Astronomical Society
This study utilized advanced numerical simulations with the Weather Research and Forecasting model coupled with Chemistry (WRF-Chem) to predict anticipated astronomical seeing conditions at the Thai National Observatory (TNO).
Macatangay, Ronald, Sonkaew, Thiranan, Sukaum, Boonchoo, Sookjai, Donrudee, Bran, Sherin Hassan, Rattanasoon, Somsawatt, Panya, Mana, Butterley, Timothy, Supasri, Titaporn   +8 more
core   +2 more sources

The FLAMINGO project: cosmological hydrodynamical simulations for large-scale structure and galaxy cluster surveys [PDF]

Monthly notices of the Royal Astronomical Society, 2023
We introduce the Virgo Consortium’s FLAMINGO suite of hydrodynamical simulations for cosmology and galaxy cluster physics. To ensure the simulations are sufficiently realistic for studies of large-scale structure, the subgrid prescriptions for stellar ...
J. Schaye, R. Kugel, M. Schaller, J. Helly, J. Braspenning, W. Elbers, I. McCarthy, Marcel P van Daalen, B. Vandenbroucke, C. Frenk, J. Kwan, J. Salcido, Y. Bahé, Josh Borrow, Evgenii Chaikin, O. Hahn, F. Huško, A. Jenkins, C. Lacey, F. Nobels   +19 more
semanticscholar   +1 more source

AbacusSummit: A Massive Set of High-Accuracy, High-Resolution N-Body Simulations [PDF]

Monthly notices of the Royal Astronomical Society, 2021
We present the public data release of the AbacusSummit cosmological N-body simulation suite, produced with the Abacus N-body code on the Summit supercomputer of the Oak Ridge Leadership Computing Facility.
Nina A Maksimova, L. Garrison, D. Eisenstein, B. Hadzhiyska, S. Bose, T. Satterthwaite   +5 more
semanticscholar   +1 more source

Structure formation in large-volume cosmological simulations of fuzzy dark matter: impact of the non-linear dynamics [PDF]

Monthly notices of the Royal Astronomical Society, 2021
An ultralight bosonic particle of mass around $10^{-22}\, \mathrm{eV}/c^2$ is of special interest as a dark matter candidate, as it both has particle physics motivations, and may give rise to notable differences in the structures on highly non-linear ...
S. May, V. Springel
semanticscholar   +1 more source

Starting Cosmological Simulations from the Big Bang. [PDF]

Physical Review Letters, 2023
The cosmic large-scale structure (LSS) provides a unique testing ground for connecting fundamental physics to astronomical observations. Modeling the LSS requires numerical N-body simulations or perturbative techniques that both come with distinct ...
Florian List, Oliver Hahn, Cornelius Rampf   +2 more
semanticscholar   +1 more source

Convolutional Deep Denoising Autoencoders for Radio Astronomical Images [PDF]

Monthly notices of the Royal Astronomical Society, 2021
We apply a Machine Learning technique known as Convolutional Denoising Autoencoder to denoise synthetic images of state-of-the-art radio telescopes, with the goal of detecting the faint, diffused radio sources predicted to characterise the radio cosmic
C. Gheller, F. Vazza
semanticscholar   +1 more source