2003MNRAS.342.1117M


Query : 2003MNRAS.342.1117M

2003MNRAS.342.1117M - Mon. Not. R. Astron. Soc., 342, 1117-1130 (2003/July-2)

SUMSS: a wide-field radio imaging survey of the southern sky - II. The source catalogue.

MAUCH T., MURPHY T., BUTTERY H.J., CURRAN J., HUNSTEAD R.W., PIESTRZYNSKI B., ROBERTSON J.G. and SADLER E.M.

Abstract (from CDS):

This paper is the second in a series describing the Sydney University Molonglo Sky Survey (SUMSS) being carried out at 843 MHz with the Molonglo Observatory Synthesis Telescope (MOST). The survey will consist of ∼590 4.3°x 4.3° mosaic images with 45x45 cosec|δ| arcsec2 resolution, and a source catalogue. In this paper we describe the initial release (version 1.0) of the source catalogue consisting of 107 765 radio sources made by fitting elliptical Gaussians in 271 SUMSS 4.3°x 4.3° mosaics to a limiting peak brightness of 6 mJy/beam at δ≤-50° and 10 mJy/beam at δ > -50°. The catalogue covers approximately 3500 deg2 of the southern sky with δ≤-30°, about 43 per cent of the total survey area. Positions in the catalogue are accurate to within 1-2 arcsec for sources with peak brightness A843≥ 20 mJy/beam and are always better than 10 arcsec. The internal flux density scale is accurate to within 3 per cent. Image artefacts have been classified using a decision tree, which correctly identifies and rejects spurious sources in over 96 per cent of cases. Analysis of the catalogue shows that it is highly uniform and is complete to 8 mJy at δ≤-50° and 18 mJy at δ > -50°. In this release of the catalogue about 7000 sources are found in the overlap region with the National Radio Astronomy Observatories Very Large Array Sky Survey at 1.4 GHz. We calculate a median spectral index of α=-0.83 between 1.4 GHz and 843 MHz. This version of the catalogue will be released via the World Wide Web with future updates as new mosaics are released.

Abstract Copyright: 2003 RAS

Journal keyword(s): methods: data analysis - catalogues - surveys - astrometry - galaxies: statistics - radio continuum: general

VizieR on-line data: <CDS Catalogue: VIII/70>

Nomenclature: Catalogue: SUMSS JHHMMSS-DDMMSS N=107729.

Simbad objects: 14

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Number of rows : 14
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 ICRF J025246.1-710435 G 02 52 46.15578 -71 04 35.2742   19.0 19.0     ~ 88 1
2 PKS 0409-75 rG 04 08 48.4924 -75 07 19.327   21.40 21.7     ~ 74 1
3 MRC 0420-625 G 04 20 56.06 -62 23 39.7           ~ 22 1
4 MRC 0536-692 Rad 05 36 20.7 -69 12 15           ~ 1 0
5 LHA 120-N 159 HII 05 39 46.650 -69 45 39.94           ~ 258 2
6 QSO J0743-6726 QSO 07 43 31.61163970 -67 26 25.5464081   16.71 16.37     ~ 139 1
7 MRC 1737-602 Rad 17 42 02.9 -60 15 54           ~ 1 0
8 MRC 1754-577 Rad 17 59 05.2 -57 42 20           ~ 1 0
9 PKS 1814-51 Rad 18 18 06.94 -51 58 09.6           ~ 20 1
10 ICRF J181935.0-634548 Sy2 18 19 35.00241 -63 45 48.1926   16.80 14.40 13.4   ~ 139 1
11 MRC 1817-632 Rad 18 22 16.0 -63 10 41           ~ 1 0
12 PKS 1827-36 rG 18 30 58.901 -36 02 30.33           ~ 65 1
13 2MASX J22243777-6947419 G 22 24 37.771 -69 47 41.99           ~ 2 0
14 PKS 2323-40 Rad 23 26 34.13 -40 27 15.0     19.5     ~ 31 1

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2021.11.28-21:10:49

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