Results 21 to 30 of about 3,209 (262)

Integrated optics applied to astronomical aperture synthesis III: simulation of components optimized for astronomical interferometry [PDF]

open access: yesInternational Conference on Space Optics — ICSO 1997, 2018
This paper, “Integrated optics applied to astronomical aperture synthesis III: simulation of components optimized for astronomical interferometry," was presented as part of International Conference on Space Optics—ICSO 1997, held in Toulouse, France.
Pierre Benech   +5 more
openaire   +1 more source

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

open access: yesSPIE 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   +4 more
openaire   +1 more source

A real-time simulation facility for astronomical adaptive optics [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2014
Accepted for publication in ...
openaire   +3 more sources

Global Vlasov simulation on magnetospheres of astronomical objects

open access: yesJournal 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   +2 more
openaire   +1 more source

Multi-Color Temperature and Magnitude Simulation for Astronomical Spectral Velocity Measurement

open access: yesIEEE Access, 2023
The simulation of terrestrial stellar radiation information suffers from distortions due to limited precision of stellar spectrum and magnitude simulations. Hence, the effective verification and evaluation of experimental conditions for new techniques such as astronomical spectral velocity measurement and navigation are hindered.
Qiang Liu   +10 more
openaire   +2 more sources

An Optimal Integral Controller for Adaptive Optics Systems

open access: yesSensors, 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   +3 more
doaj   +1 more source

Photometric Accuracy of Deconvolved Simulated Astronomical Images

open access: yesThe Astrophysical Journal, 2005
A study of the photometric accuracy of deconvolved astronomical images was undertaken by processing two simulated images with several well-known algorithms. The simulations consisted of an image of a simple star field and an image of an active galactic nucleus (AGN).
Stephen R. McNeil, J. Ward Moody
openaire   +1 more source

Spectral Templates Optimal for Selecting Galaxies at z > 8 with the JWST

open access: yesThe Astrophysical Journal, 2023
The selection of high-redshift galaxies often involves spectral energy distribution (SED) fitting to photometric data, an expectation for contamination levels, and measurement of sample completeness—all vetted through comparison to spectroscopic redshift
Rebecca L. Larson   +11 more
doaj   +1 more source

Simulation of astronomical aspects of Middle Neolithic circular ditch systems [PDF]

open access: yesArchéoSciences, 2009
Introduction The oldest Middle European monuments (approx. 4850/4750 – 4550/4500 BC) were presented in the Lower Austrian County Exhibition at Heldenberg in 2005 (Daim & Neubauer, 2005). The Middle Neolithic circular ditch systems, or Kreisgrabenanlagen (KGA), are known all over Middle Europe. These wooden monuments form a first pan-European phenomenon,
Georg Zotti   +3 more
openaire   +3 more sources

VLBI Network SIMulator: An Integrated Simulation Tool for Radio Astronomers

open access: yes, 2018
In this paper we introduce a software package, the Very Long Baseline Interferometry Network SIMulator (VNSIM), which provides an integrated platform assisting radio astronomers to design the Very Long Baseline Interferometry (VLBI) experiments and evaluate the network performance with a user-friendly interface. Though VNSIM is motivated to be designed
Zhao, Zhen, An, Tao, Lao, Baoqiang
openaire   +2 more sources

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