The Karl G. Jansky Very Large Array Sky Survey (VLASS). Science Case and Survey Design

被引:531
作者
Lacy, M. [1 ]
Baum, S. A. [2 ]
Chandler, C. J. [3 ]
Chatterjee, S. [4 ,5 ]
Clarke, T. E. [6 ]
Deustua, S. [7 ]
English, J. [2 ]
Farnes, J. [8 ]
Gaensler, B. M. [9 ]
Gugliucci, N. [10 ]
Hallinan, G. [11 ]
Kent, B. R. [1 ]
Kimball, A. [3 ]
Law, C. J. [11 ,12 ]
Lazio, T. J. W. [13 ]
Marvil, J. [3 ]
Mao, S. A. [14 ]
Medlin, D. [3 ]
Mooley, K. [11 ]
Murphy, E. J. [1 ]
Myers, S. [3 ]
Osten, R. [7 ]
Richards, G. T. [15 ]
Rosolowsky, E. [16 ]
Rudnick, L. [17 ]
Schinzel, F. [3 ]
Sivakoff, G. R. [16 ]
Sjouwerman, L. O. [3 ]
Taylor, R. [18 ,19 ]
White, R. L. [7 ]
Wrobel, J. [3 ]
Andernach, H. [20 ]
Beasley, A. J. [1 ]
Berger, E. [21 ]
Bhatnagar, S. [3 ]
Birkinshaw, M. [22 ]
Bower, G. C. [23 ]
Brandt, W. N. [24 ,25 ,26 ]
Brown, S. [27 ]
Burke-Spolaor, S. [28 ,29 ]
Butler, B. J. [3 ]
Comerford, J. [30 ]
Demorest, P. B. [3 ]
Fu, H. [27 ]
Giacintucci, S. [6 ]
Golap, K. [3 ]
Guth, T. [3 ]
Hales, C. A. [3 ,31 ]
Hiriart, R. [3 ]
Hodge, J. [32 ]
机构
[1] Natl Radio Astron Observ, 520 Edgemt Rd, Charlottesville, VA 22903 USA
[2] Univ Manitoba, Dept Phys & Astron, Winnipeg, MB R3T 2N2, Canada
[3] Natl Radio Astron Observ, 1003 Lopezville Rd, Socorro, NM 87801 USA
[4] Cornell Univ, Cornell Ctr Astrophys & Planetary Sci, Ithaca, NY 14853 USA
[5] Cornell Univ, Dept Astron, Ithaca, NY 14853 USA
[6] Naval Res Lab Remote Sensing Div, Code 7213,4555 Overlook Ave SW, Washington, DC 20375 USA
[7] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA
[8] Oxford E Res Ctr, Keble Rd, Oxford OX1 3QG, England
[9] Univ Toronto, Dunlap Inst Astron & Astrophys, 50 St George St, Toronto, ON M5S 3H4, Canada
[10] St Anselm Coll, Dept Phys, 100 St Anselm Dr, Manchester, NH 03102 USA
[11] CALTECH, 1200 East Calif Blvd, Pasadena, CA 91125 USA
[12] Univ Calif Berkeley, Dept Astron & Radio Astron Lab, Berkeley, CA 94720 USA
[13] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
[14] Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany
[15] Drexel Univ, Dept Phys, 3141 Chestnut St, Philadelphia, PA 19104 USA
[16] Univ Alberta, Dept Phys, CCIS 4-181, Edmonton, AB T6G 2E1, Canada
[17] Univ Minnesota, Sch Phys & Astron, Minnesota Inst Astrophys, 116 Church St SE, Minneapolis, MN 55455 USA
[18] Univ Cape Town, Dept Astron, Private Bag X3, ZA-7701 Rondebosch, South Africa
[19] Univ Western Cape, Dept Phys & Astron, Private Bag X17, ZA-7535 Bellville, South Africa
[20] Univ Guanajuato, Dept Astron, DCNE, Apdo Postal 144, Guanajuato 36000, Guanajuato, Mexico
[21] Harvard Astron Dept, 60 Garden St,MS 46, Cambridge, MS 02138 USA
[22] Univ Bristol, HH Wills Phys Lab, Tyndall Ave, Bristol BS8 1TL, Avon, England
[23] Acad Sinica, Inst Astron & Astrophys, 645 N Aohoku Pl, Hilo, HI 96720 USA
[24] Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA
[25] Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA
[26] Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA
[27] Univ Iowa, Dept Phys & Astron, 203 Van Allen Hall, Iowa City, IA 52242 USA
[28] West Virginia Univ, Dept Phys & Astron, White Hall, Morgantown, WV 26506 USA
[29] West Virginia Univ, Ctr Gravitat Waves & Cosmol, Morgantown, WV 26506 USA
[30] Univ Colorado, Dept Astrophys & Planetary Sci, Boulder, CO 80309 USA
[31] Newcastle Univ, Sch Math Stat & Phys, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
[32] Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands
[33] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel
[34] Univ Washington, Dept Astron, Box 351580, Seattle, WA 98195 USA
[35] Univ Oxford, Astrophys, Denys Wilkinson Bldg,Keble Rd, Oxford OX1 3RH, England
[36] Harvard & Smithsonian, Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA
[37] Univ Illinois, Dept Astron, Urbana, IL 61801 USA
[38] Univ Nacl Autonoma Mexico, Inst Radioastron & Astrofis, Morelia 5808, Michoacan, Mexico
[39] Univ Nacl Autonoma Mexico, Inst Astron, Ciudad De Mexico 04510, Mexico
[40] CSIC, ICE, Campus UAB, E-08193 Barcelona, Spain
[41] IEEC, Caner Gran Capita, E-08034 Barcelona, Spain
[42] ESO European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany
[43] CNR, Naval Res Lab, Washington, DC 20375 USA
[44] Univ Hamburg, Hamburger Sternwarte, Gojenbergsweg 112, D-21029 Hamburg, Germany
[45] Univ Illinois, Natl Ctr Supercomp Applicat, Urbana, IL 61801 USA
[46] INAF Inst Radioastron, Via Gobetti101, I-40129 Bologna, Italy
基金
美国国家科学基金会; 加拿大自然科学与工程研究理事会; 加拿大创新基金会; 美国国家航空航天局;
关键词
radio continuum: general; surveys; ACTIVE GALACTIC NUCLEI; FARADAY DEPTH STRUCTURE; RADIO-LOUD; STAR-FORMATION; BROAD-BAND; ROTATION MEASURE; MAGNETIC-FIELDS; INFRARED SURVEY; HOST GALAXIES; HIGH-REDSHIFT;
D O I
10.1088/1538-3873/ab63eb
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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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页数:30
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