2007AJ....134.1245C


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.17CEST22:09:16

2007AJ....134.1245C - Astron. J., 134, 1245-1262 (2007/September-0)

The VLA low-frequency sky survey.

COHEN A.S., LANE W.M., COTTON W.D., KASSIM N.E., LAZIO T.J.W., PERLEY R.A., CONDON J.J. and ERICKSON W.C.

Abstract (from CDS):

The VLA Low-frequency Sky Survey (VLSS) has imaged 95% of the 3π sr of sky north of δ=-30° at a frequency of 74 MHz (4 m wavelength). The resolution is 80" (FWHM) throughout, and the typical rms noise level is <σ>~0.1 Jy/beam. The typical point-source detection limit is 0.7 Jy/beam, and so far nearly 70,000 sources have been cataloged. This survey used the 74 MHz system added to the VLA in 1998. It required new imaging algorithms to remove the large ionospheric distortions at this very low frequency throughout the entire ∼11.9° field of view. This paper describes the observation and data reduction methods used for the VLSS and presents the survey images and source catalog. All of the calibrated images and the source catalog are available from the VLSS Web site for use by the astronomical community.

Abstract Copyright:

Journal keyword(s): Atmospheric Effects - Catalogs - Radio Continuum: General - Surveys

VizieR on-line data: <CDS Catalogue: VIII/79>

Nomenclature: Catalog: VLSS JHHMM.m+DDMM N=68300, VLSS JHHMM.m+DDMMA N=8.

Simbad objects: 29

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Number of rows : 29

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 3C 63 BLL 02 20 54.3164759040 -01 56 50.432576748           ~ 140 0
2 NAME Per B AGN 04 37 04.37510272 +29 40 13.8184969   21.7       ~ 480 2
3 VLSS J0917.9+5853 Rad 09 17 59.45 +58 53 26.3           ~ 1 0
4 VLSS J0917.9+0034 Rad 09 17 59.51 +00 34 48.3           ~ 1 0
5 NVSS J091801+300127 Rad 09 18 01.2 +30 01 28           ~ 2 1
6 VLSS J0918.0-0303 Rad 09 18 01.38 -03 03 53.1           ~ 1 0
7 VLSS J0918.0-1303 Rad 09 18 02.53 -13 03 13.8           ~ 1 0
8 PMN J0918-2402 Rad 09 18 03.80 -24 02 32.0           ~ 2 1
9 NVSS J091804+431204 Rad 09 18 04.43 +43 12 04.5           ~ 2 1
10 NAME Hya A LIN 09 18 05.651 -12 05 43.99   14.38 14.8     ~ 930 1
11 NVSS J091806+653720 Rad 09 18 06.60 +65 37 20.7           ~ 2 1
12 NVSS J091807+322529 Rad 09 18 07.1 +32 25 29           ~ 2 1
13 4C 12.34 Rad 09 18 09.8 +12 27 37   19.5       ~ 6 2
14 VLSS J0918.1-0841 Rad 09 18 10.84 -08 41 34.9           ~ 1 0
15 PMN J0918-3010 Rad 09 18 11.7 -30 10 22           ~ 2 1
16 NVSS J091811+295016 Rad 09 18 12.0 +29 50 17           ~ 2 1
17 VLSS J0918.2-0053 Rad 09 18 14.01 -00 53 46.6           ~ 1 0
18 NVSS J091814+811139 Rad 09 18 14.0 +81 11 39           ~ 3 1
19 PKS J0918-3048 Rad 09 18 15.70 -30 48 54.0           ~ 4 1
20 GB6 B0914+6504 Rad 09 18 15.73 +64 51 38.6           ~ 2 1
21 NVSS J091817+684413 Rad 09 18 17.87 +68 44 13.9           ~ 2 1
22 VLSS J0918.3-0005 Rad 09 18 23.32 -00 05 10.1           ~ 1 0
23 PMN J0918-2709 Rad 09 18 24.10 -27 09 08.0           ~ 3 1
24 VLSS J0918.4-3133 Rad 09 18 24.17 -31 33 32.7           ~ 1 0
25 MCG+12-09-037 G 09 18 26.90 +71 43 46.8   15.1       ~ 5 1
26 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6406 3
27 NAME Galactic Center gam 17 45 39.60213 -29 00 22.0000           ~ 12183 0
28 NAME Cyg A Sy2 19 59 28.35645829 +40 44 02.0966496   16.22 15.10     ~ 2168 2
29 NAME Cas A SNR 23 23 24.000 +58 48 54.00     14.30     ~ 2496 1

    Equat.    Gal    SGal    Ecl

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2021.05.17-22:09:16

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