Results 51 to 60 of about 107,385 (182)
Intensity-sensitive Quality Assessment of Extended Sources in Astronomical Images
The Astrophysical Journal Supplement SeriesRadio 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 ...
Xiaotong Li +2 more
doaj +1 more source
SkuareView: Client-Server Framework for Accessing Extremely Large Radio Astronomy Image Data
, 2012 The new wide-field radio telescopes, such as: ASKAP, MWA, and SKA; will produce spectral-imaging data-cubes (SIDC) of unprecedented volume. This requires new approaches to managing and servicing the data to the end-user.
Cannon, Andrew D. +4 more
core +1 more source
Automated Detection of Galactic Rings from Sloan Digital Sky Survey Images
The Astrophysical JournalMorphological features in galaxies—like spiral arms, bars, rings, and tidal tails, etc.—carry information about their structure, origin, and evolution.
Linn Abraham +6 more
doaj +1 more source
Data Compression in the Petascale Astronomy Era: a GERLUMPH case study
, 2015 As the volume of data grows, astronomers are increasingly faced with choices on what data to keep -- and what to throw away. Recent work evaluating the JPEG2000 (ISO/IEC 15444) standards as a future data format standard in astronomy has shown promising ...
Fluke, Christopher J. +2 more
core +1 more source
The Dark Energy Survey Data Management System
, 2008 The Dark Energy Survey collaboration will study cosmic acceleration with a 5000 deg2 griZY survey in the southern sky over 525 nights from 2011-2016. The DES data management (DESDM) system will be used to process and archive these data and the resulting ...
Barkhouse, Wayne +19 more
core +1 more source
Dagstuhl Reports, 2019 This report documents the program and the outcomes of Dagstuhl Seminar 18442, "Visualization and Processing of Anisotropy in Imaging, Geometry, and Astronomy", which was attended by 30 international researchers, both junior and senior. Directional preferences or anisotropies are encountered across many different disciplines and spatial scales.
Fuster, Andrea +3 more
openaire +4 more sources
Astronomical Image Acquisition Using an Improved Track and Accumulate Method
IEEE Access, 2017 “Track and Accumulate” (T&A) is an alternative astronomical image capture method where exposures are combined during imaging by aligning on a reference star.
Seng Cheong Loke
doaj +1 more source
Grids and the Virtual Observatory [PDF]
, 2003 We consider several projects from astronomy that benefit from the Grid paradigm and associated technology, many of which involve either massive datasets or the federation of multiple datasets.
Williams, Roy
core
Shape: A 3D Modeling Tool for Astrophysics
, 2010 We present a flexible interactive 3D morpho-kinematical modeling application for astrophysics. Compared to other systems, our application reduces the restrictions on the physical assumptions, data type and amount that is required for a reconstruction of ...
Koning, Nicholas +4 more
core +2 more sources
A Centroiding Algorithm for Point-source Trails
The Astronomical JournalAstrometric measurements are significantly challenged by the relative motion between the point source and the telescope, primarily due to the difficulty in accurately determining the position of the point source at the mid-exposure moment.
Linpeng Wu +5 more
doaj +1 more source