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Next Generation Very Large Array Memo No. 5 Science Working Groups Project Overview

Carilli, C. L. and McKinnon, M. and Ott, J. and Beasley, A. and Isella, A. and Murphy, E. and Leroy, A. and Casey, C. and Moullet, A. and Lacy, M. and Hodge, J. and Bower, G. and Demorest, P. and Hull, C. and Hughes, M. and Di Francesco, J. and Narayanan, D. and Kent, B. and Clark, B. and Butler, B. (2015) Next Generation Very Large Array Memo No. 5 Science Working Groups Project Overview. . (Submitted)

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We summarize the design, capabilities, and some of the priority science goals of a next generation Very Large Array (ngVLA). The ngVLA is an interferometric array with 10x larger effective collecting area and 10x higher spatial resolution than the current VLA and the Atacama Large Millimeter Array (ALMA), optimized for operation in the wavelength range 0.3cm to 3cm. The ngVLA opens a new window on the Universe through ultra-sensitive imaging of thermal line and continuum emission down to milliarcecond resolution, as well as unprecedented broad band continuum polarimetric imaging of non-thermal processes. The continuum resolution will reach 9mas at 1cm, with a brightness temperature sensitivity of 6K in 1 hour. For spectral lines, the array at 1" resolution will reach 0.3K surface brightness sensitivity at 1cm and 10 km s^(-1) spectral resolution in 1 hour. These capabilities are the only means with which to answer a broad range of critical scientific questions in modern astronomy, including direct imaging of planet formation in the terrestrial-zone, studies of dust-obscured star formation and the cosmic baryon cycle down to pc-scales out to the Virgo cluster, making a cosmic census of the molecular gas which fuels star formation back to first light and cosmic reionization, and novel techniques for exploring temporal phenomena from milliseconds to years. The ngVLA is optimized for observations at wavelengths between the superb performance of ALMA at submm wavelengths, and the future SKA1 at few centimeter and longer wavelengths. This memo introduces the project. The science capabilities are outlined in a parallel series of white papers. We emphasize that this initial set of science goals are simply a starting point for the project. We invite comment on these programs, as well as new ideas, through our public forum link on the ngVLA web page:

Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription Paper
Carilli, C. L.0000-0001-6647-3861
Ott, J.0000-0001-8224-1956
Isella, A.0000-0001-8061-2207
Murphy, E.0000-0001-7089-7325
Leroy, A.0000-0002-2545-1700
Casey, C.0000-0002-0930-6466
Moullet, A.0000-0002-9820-1032
Lacy, M.0000-0002-3032-1783
Hodge, J.0000-0001-6586-8845
Narayanan, D.0000-0002-7064-4309
Additional Information:The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc.
Funding AgencyGrant Number
Record Number:CaltechAUTHORS:20151117-133034328
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:62177
Deposited By: Tony Diaz
Deposited On:17 Nov 2015 23:32
Last Modified:09 Mar 2020 13:19

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