Results 81 to 90 of about 5,542,325 (204)

Astronomical data compression experiment

open access: yes
Astronomical compression experiment. Lossless and lossy compression is performed on 16-bit astronomical data.
Maireles-Gonzalez, Oscar
core   +1 more source

Astronomical society of Australia. Proceedings.

open access: yes
Voortgezet als: Publications of the Astronomical society of ...
Astronomical society of Australia
core  

Turbulence characterisation for Astronomical Observatories [PDF]

open access: yes, 2012
Atmospheric turbulence has two effects in astronomy; (i) the broadening of the point spread function due to phase fluctuations limiting the resolution of imaging and (ii) producing intensity fluctuations known as scintillation.
SHEPHERD, HARRY,WILLIAM   +1 more
core  

Fringe Detection in the Lunar Orbit VLBI Experiment: The Initial Clock Search

open access: yesThe Astronomical Journal
We present the design and implementation of a fringe detection pipeline for the Lunar Orbit VLBI Experiment (LOVEX) on board China’s Queqiao-2 cislunar relay satellite. To address the challenge posed by limited space–ground time synchronization accuracy,
Lei Liu   +3 more
doaj   +1 more source

Intensity-sensitive quality assessment of extended sources in astronomical images [PDF]

open access: yes
Radio astronomy studies the Universe by observing the radio emissions of celestial bodies. Different methods can be used to recover the sky brightness distribution (SBD), which describes the distribution of celestial sources from recorded data, with the ...
Li, Xiaotong   +5 more
core   +1 more source

Multimodal multi-output ordinal regression for discovering gravitationally-lensed transients

open access: yesMachine Learning: Science and Technology
Gravitational lenses are caused by massive astronomical objects that distort space-time, bending light. They can distort transient astrophysical events, such as supernovae (SN), which are the subject of extensive study.
Nicolò Oreste Pinciroli Vago   +1 more
doaj   +1 more source

Recursive Anchoring Techniques in Astronomical Data Analysis

open access: yesJournal of Research in Science and Engineering
The conventional approach to astronomical research assumes that large - scale observational data is necessary to define cosmic structures. This paper proposes a recursive anchoring method where a fraction of the dataset, when correctly defined within a recursive framework, can reconstruct the same “center of existence” as a full dataset.
openaire   +1 more source

A Geodetic and Astrometric VLBI Experiment at 22/43/88/132 GHz

open access: yes
Publisher Copyright: © 2024. The Author(s). Published by the American Astronomical Society.Extending geodetic and astrometric Very Long Baseline Interferometry (VLBI) observations from traditional centimeter wavebands to millimeter wavebands offers ...
Choi, Byung Kyu   +16 more
core   +1 more source

Astronomical Data Analysis Software and Systems XXVI [PDF]

open access: yes, 2019
This volume contains papers presented at the twenty-sixth annual conference on Astronomical Data Analysis Software and Systems (ADASS XXVI). The ADASS conference is the premier conference for the exchange of information about astronomical software and is
PASIAN, Fabio   +2 more
core  

Exploring Pulsar Timing Precision: A Comparative Study of Polarization Calibration Methods for NANOGrav Data from the Green Bank Telescope

open access: yesThe Astrophysical Journal
Pulsar timing array experiments have recently uncovered evidence for a nanohertz gravitational wave background by precisely timing an ensemble of millisecond pulsars.
Lankeswar Dey   +34 more
doaj   +1 more source

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