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© 2020. The Astronomical Society of the Pacific.The Very Large Array Sky Survey (VLASS) is a synoptic, all-sky radio sky survey with a unique combination of high angular resolution (≈2.″5), sensitivity (a 1σ goal of 70 μJy/beam in the coadded data), full linear Stokes polarimetry, time domain coverage, and wide bandwidth (2–4 GHz). The first observations began in 2017 September, and observing for the survey will finish in 2024. VLASS will use approximately 5500 hr of time on the Karl G. Jansky Very Large Array (VLA) to cover the whole sky visible to the VLA (decl. > −40°), a total of 33 885 deg2. The data will be taken in three epochs to allow the discovery of variable and transient radio sources. The survey is designed to engage radio astronomy experts, multi-wavelength astronomers, and citizen scientists alike. By utilizing an “on the fly” interferometry mode, the observing overheads are much reduced compared to a conventional pointed survey. In this paper, we present the science case and observational strategy for the survey, and also results from early survey observations.
Author(s): Lacy M, Baum SA, Chandler CJ, Chatterjee S, Clarke TE, Deustua S, English J, Farnes J, Gaensler BM, Gugliucci N, Hallinan G, Kent BR, Kimball A, Law CJ, Lazio TJW, Marvil J, Mao SA, Medlin D, Mooley K, Murphy EJ, Myers S, Osten R, Richards GT, Rosolowsky E, Rudnick L, Schinzel F, Sivakoff GR, Sjouwerman LO, Taylor R, White RL, Wrobel J, Andernach H, Beasley AJ, Berger E, Bhatnager S, Birkinshaw M, Bower GC, Brandt WN, Brown S, Burke-Spolaor S, Butler BJ, Comerford J, Demorest PB, Fu H, Giacintucci S, Golap K, Guth T, Hales CA, Hiriart R, Hodge J, Horesh A, Ivezic Z, Jarvis MJ, Kamble A, Kassim N, Liu X, Loinard L, Lyons DK, Masters J, Mezcua M, Moellenbrock GA, Mroczkowski T, Nyland K, O'dea CP, O'sullivan SP, Peters WM, Radford K, Rao U, Robnett J, Salcido J, Shen Y, Sobotka A, Witz S, Vaccari M, van Weeren RJ, Vargas A, Williams PKG, Yoon I
Publication type: Article
Publication status: Published
Journal: Publications of the Astronomical Society of the Pacific
Year: 2020
Volume: 132
Issue: 1009
Print publication date: 01/03/2020
Online publication date: 28/01/2020
Acceptance date: 19/12/2019
ISSN (print): 0004-6280
ISSN (electronic): 1538-3873
Publisher: Institute of Physics Publishing
URL: https://doi.org/10.1088/1538-3873/ab63eb
DOI: 10.1088/1538-3873/ab63eb
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