Results 41 to 50 of about 5,320,922 (369)

The overarching framework of core-collapse supernova explosions as revealed by 3D fornax simulations [PDF]

Monthly notices of the Royal Astronomical Society, 2019
We have conducted 19 state-of-the-art 3D core-collapse supernova simulations spanning a broad range of progenitor masses. This is the largest collection of sophisticated 3D supernova simulations ever performed.
A. Burrows, David Radice, David Radice, D. Vartanyan, H. Nagakura, M. A. Skinner, J. Dolence   +6 more
semanticscholar   +1 more source

Fast large-scale reionization simulations [PDF]

, 2009
We present an efficient method to generate large simulations of the epoch of reionization without the need for a full three-dimensional radiative transfer code. Large dark-matter-only simulations are post-processed to produce maps of the redshifted 21-cm
Benedetta Ciardi, Yatawatta, Sarod, Zaroubi, S., Mellema, Garrelt, Saleem Zaroubi, Thomas, R., Leon V. E. Koopmans, Bernardi, Gianni, Vibor Jelić, Labropoulos, Panagiotis, Mellema, Garrelt,, Schaye, J., de Bruyn, A. G., Panagiotis Labropoulos, Pawlik, A., A. G. de Bruyn, Sarod Yatawatta, Zaroubi, Saleem, Ciardi, Benedetta, Mellema, G., Garrelt Mellema, Harker, Geraint J. A., Jelic, Vibor, Schaye, Joop, Jelic, V., Michiel A. Brentjens, Geraint J. A. Harker, V. N. Pandey, Bernardi, G., Koopmans, L., Gianni Bernardi, Brentjens, M., Pandey, V., de Bruyn, A., Harker, G., Yatawatta, S., Thomas, Rajat M., Labropoulos, P., Koopmans, Leon V. E., Rajat M. Thomas, Pandey, V. N., Brentjens, Michiel A., Andreas H. Pawlik, Pawlik, Andreas H., Ciardi, B., Joop Schaye   +45 more
core   +1 more source

AIRY: a complete tool for the simulation and the reconstruction of astronomical images [PDF]

SPIE Proceedings, 2012
The Software Package AIRY (acronym for Astronomical Image Restoration in interferometrY) is a software tool designed to perform simulation and/or deconvolution of images of Fizeau interferometers as well as of any kind of optical telescopes. AIRY is written in IDL and is a Software Package of the CADS Problem Solving Environment (PSE): it is made of a ...
Andrea La Camera, Marcel Carbillet, Chiara Olivieri, Patrizia Boccacci, Mario Bertero   +4 more
openaire   +1 more source

Numerical simulations of sunspots [PDF]

, 2006
The origin, structure and evolution of sunspots are investigated using a numerical model. The compressible MHD equations are solved with physical parameter values that approximate the top layer of the solar convection zone.
Hurlburt, Neal, Botha, Gert, Rucklidge, Alistair   +2 more
core   +1 more source

Dark Energy Survey Y3 results: Blending shear and redshift biases in image simulations [PDF]

Monthly notices of the Royal Astronomical Society, 2020
As the statistical power of galaxy weak lensing reaches percent level precision, large, realistic and robust simulations are required to calibrate observational systematics, especially given the increased importance of object blending as survey depths ...
N. MacCrann, M. Becker, J. McCullough, A. Amon, D. Gruen, M. Jarvis, A. Choi, M. Troxel, E. Sheldon, B. Yanny, K. Herner, S. Dodelson, J. Zuntz, K. Eckert, R. Rollins, T. Varga, G. Bernstein, R. Gruendl, I. Harrison, W. Hartley, I. Sevilla-Noarbe, A. Pieres, S. Bridle, J. Myles, A. Alarcon, S. Everett, C. S'anchez, E. Huff, F. Tarsitano, M. Gatti, L. Secco, T. Abbott, M. Aguena, S. Allam, J. Annis, D. Bacon, E. Bertin, D. Brooks, D. Burke, A. Rosell, M. Kind, J. Carretero, M. Costanzi, M. Crocce, M. Pereira, J. Vicente, S. Desai, H. Diehl, J. Dietrich, P. Doel, T. Eifler, I. Ferrero, A. Fert'e, B. Flaugher, P. Fosalba, J. Frieman, J. García-Bellido, E. Gaztañaga, D. Gerdes, T. Giannantonio, J. Gschwend, G. Gutiérrez, S. Hinton, D. Hollowood, K. Honscheid, D. James, O. Lahav, M. Lima, M. Maia, M. March, J. Marshall, P. Martini, Peter Melchior, F. Menanteau, R. Miquel, J. Mohr, R. Morgan, J. Muir, R. Ogando, A. Palmese, F. Paz-Chinch'on, A. Plazas, M. Rodriguez-Monroy, A. Roodman, S. Samuroff, E. Sánchez, V. Scarpine, S. Serrano, M. Smith, M. Soares-Santos, E. Suchyta, M. Swanson, G. Tarlé, D. Thomas, C. To, R. Wilkinson   +95 more
semanticscholar   +1 more source

The dark matter assembly of the Local Group in constrained cosmological simulations of a Λ cold dark matter universe [PDF]

, 2011
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2011 RAS © 2011 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.
Anatoly Klypin, Forero-Romero, Jaime E., Robert Piontek, Jaime E. Forero-romero, Piontek, Robert, Hoffman, Yehuda, Klypin, Anatoly, Yehuda Hoffman, Gottlöber, Stefan, Gustavo Yepes, Stefan Gottlöber, Yepes Alonso, Gustavo, Steinmetz, Matthias, Matthias Steinmetz   +13 more
core   +1 more source

Three-dimensional simulations of neutrino-driven core-collapse supernovae from low-mass single and binary star progenitors [PDF]

Monthly notices of the Royal Astronomical Society, 2018
We present a suite of seven 3D supernova simulations of non-rotating low-mass progenitors using multi-group neutrino transport. Our simulations cover single star progenitors with zero-age main sequence masses between $9.6 M_\odot$ and $12.5 M_\odot$ and (
B. Müller, T. Tauris, A. Heger, P. Banerjee, Y. Qian, J. Powell, Conrad Chan, D. Gay, N. Langer   +8 more
semanticscholar   +1 more source

Performance analysis of the Karhunen–Loève Transform for artificial and astrophysical transmissions: denoizing and detection [PDF]

, 2020
In this work, we propose a new method of computing the Karhunen–Loève Transform (KLT) applied to complex voltage data for the detection and noise level reduction in astronomical signals.
Trudu, M., Antonietti, Nicolò, Hellbourg, G., Hellbourg, Gregory, Trois, Alessio, Melis, Andrea, Pilia, M., Pilia, Maura, Perrodin, Delphine, ANTONIETTI, NICOLO', Maccone, Claudio, Trudu, Matteo, Pari, Pierpaolo   +12 more
core   +1 more source

An Optimal Integral Controller for Adaptive Optics Systems

Sensors, 2023
Integral controllers are commonly employed in astronomical adaptive optics. This work presents a novel tuning procedure for integral controllers in adaptive optics systems which relies on information about the measured disturbances. This tuning procedure
Pedro Escárate, María Coronel, Rodrigo Carvajal, Juan C. Agüero   +3 more
doaj   +1 more source

The origins of the circumgalactic medium in the FIRE simulations [PDF]

Monthly notices of the Royal Astronomical Society, 2018
We use a particle tracking analysis to study the origins of the circumgalactic medium (CGM), separating it into (1) accretion from the intergalactic medium (IGM), (2) wind from the central galaxy, and (3) gas ejected from other galaxies.
Zachary Hafen, C. Faucher-Giguére, D. Anglés-Alcázar, J. Stern, D. Keres̆, C. Hummels, C. Esmerian, S. Garrison-Kimmel, K. El-Badry, A. Wetzel, T. K. Chan, P. Hopkins, N. Murray   +12 more
semanticscholar   +1 more source