Results 1 to 10 of about 5,423 (262)
THE VARIABLE SKY OF DEEP SYNOPTIC SURVEYS [PDF]
Astrophysical Journal, 2014 Published in ApJ, 22 pages, 26 figures, 3 tables; subsequent correction of an important error in interpretation of the Besancon models reduces stellar variable numbers significantly, as seen in figures 6 ...
Thomas Matheson +2 more
exaly +3 more sources
Target Selection and Validation of DESI Quasars
The Astrophysical Journal, 2023 The Dark Energy Spectroscopic Instrument (DESI) survey will measure large-scale structures using quasars as direct tracers of dark matter in the redshift range 0.9 < z < 2.1 and using Ly α forests in quasar spectra at z > 2.1.
Edmond Chaussidon +56 more
doaj +1 more source
The LOFAR LBA Sky Survey [PDF]
Astronomy & Astrophysics, 2021 Context. The LOw Frequency ARray (LOFAR) is the only radio telescope that is presently capable of high-sensitivity, high-resolution (i.e. < 1 mJy beam−1 and < 15″) observations at ultra-low frequencies (< 100 MHz). To utilise these capabilities, the LOFAR Surveys Key Science Project is undertaking a large survey to cover the entire northern ...
de Gasperin, Francesco +40 more
+23 more sources
Proceedings of The many facets of extragalactic radio surveys: towards new scientific challenges — PoS(EXTRA-RADSUR2015), 2016 Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. EJM acknowledges support of the Ministry of Foreign Affairs and International Cooperation, Directorate General for the Country Promotion (Bilateral Grant Agreement ZA14GR02 - Mapping the Universe on the Pathway to ...
Murphy, Eric J. +1 more
openaire +2 more sources
A Southern Photometric Quasar Catalog from the Dark Energy Survey Data Release 2
The Astrophysical Journal Supplement Series, 2022 We present a catalog of 1.4 million photometrically selected quasar candidates in the southern hemisphere over the ∼5000 deg ^2 Dark Energy Survey (DES) wide survey area. We combine optical photometry from the DES second data release (DR2) with available
Qian Yang, Yue Shen
doaj +1 more source
The VLA Low‐frequency Sky Survey [PDF]
Astronomische Nachrichten, 2006 AbstractWe present an overview of the ongoing VLA Low‐frequency Sky Survey (VLSS, formerly known as 4MASS). The VLSS will map an area of 9.1 sr covering the entire sky above a declination of –30 degrees (or 75% of the full sky), at a frequency of 74 MHz (4 meter wavelength) with an unprecedented combination of sensitivity and resolution at this low ...
Cohen, A. S. +7 more
openaire +3 more sources
Multiscale Stamps for Real-time Classification of Alert Streams
The Astrophysical Journal Letters, 2023 In recent years, automatic classifiers of image cutouts (also called “stamps”) have been shown to be key for fast supernova discovery. The Vera C.
Ignacio Reyes-Jainaga +17 more
doaj +1 more source
, 2013 An invited chapter, to appear in Astronomical Techniques, Software, and Data (ed. H. Bond), Vol.2 of Planets, Stars, and Stellar Systems (ser. ed. T. Oswalt), Springer Verlag, in press (2012). 62 pages, incl.
Djorgovski, S. George +4 more
openaire +3 more sources
Supernovae Detection with Fully Convolutional One-Stage Framework
Sensors, 2021 A series of sky surveys were launched in search of supernovae and generated a tremendous amount of data, which pushed astronomy into a new era of big data.
Kai Yin +4 more
doaj +1 more source
Modeling and Simulation of Sky Survey
Applied Sciences, 2021 Sky surveys with wide and deep field are the key direction of international astronomy research for the next decades. It is worthwhile to study how to design a sky survey algorithm to obtain the maximum scientific output in a limited period of observation.
Kun Hu +4 more
doaj +1 more source