Journal
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
Volume 132, Issue 1009, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1538-3873/ab63eb
Keywords
radio continuum: general; surveys
Categories
Funding
- Canada Foundation for Innovation [35999]
- National Aeronautics and Space Administration
- NSF [1458952, AAG 1815242, 1430284, 1611606, AST-1211595, 1714205]
- National Science Foundation [ACI1548562]
- University of Guanajuato, Mexico [CIIC 218/2019]
- NRAO NINE program
- Office of Diversity and Inclusion
- NSERC [RGPIN-06569-2016]
- Deutsche Forschungsgemeinschaft (DFG) [BR2026/23]
- DGAPA, UNAM [IN112417]
- CONACyT, Mexico
- Province of Ontario
- Province of British Columbia
- Province of Alberta
- Province of Manitoba
- Province of Quebec
- STFC [ST/M000907/1, ST/R000700/1] Funding Source: UKRI
- Direct For Mathematical & Physical Scien [1611606] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Astronomical Sciences [1714205] Funding Source: National Science Foundation
- Division Of Astronomical Sciences [1611606] Funding Source: National Science Foundation
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The Very Large Array Sky Survey (VLASS) is a synoptic, all-sky radio sky survey with a unique combination of high angular resolution (25), sensitivity (a 1 sigma goal of 70 mu Jy/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 degrees), a total of 33 885 deg(2). 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.
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