Sydney University Molonglo Sky Survey (SUMSS V2.0) (Mauch+ 2007)

Details Sydney University Molonglo Sky Survey (SUMSS V2.0) (Mauch+ 2007) Sydney University Molonglo Sky Survey (SUMSS V2.0) (Mauch+ 2007)

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007ycat.8081....0m&link_type=abstract

VizieR On-line Data Catalog: VIII/81. Originally published in: 2003MNRAS.342.1117M

Physics

1

Radio Sources, Surveys, Radio Continuum

Scientific paper

The Sydney University Molonglo Sky Survey (SUMSS) is carried out at 843MHz with the Molonglo Observatory Synthesis Telescope (MOST) in its upgraded wide-field capability. The survey consists of 4.3x4.3{deg} mosaic images with 45x45''cosec{delta} resolution, covering 8000 square degrees from -30 degrees declination southwards with |b|>10{deg}. The survey resolution and sensitivity (1-sigma noise limit 1mJy) are well-matched to the NRAO VLA Sky Survey (NVSS) so that together NVSS and SUMSS provide a complete survey of the radio sky.
The version 2.0 (08-Aug-2007) of the catalogue consists of 210412 radio sources made by fitting elliptical gaussians in 633 SUMSS mosaics to a limiting peak brightness of 6mJy/beam at declination <-50{deg}, and 10mJy/beam at declination >-50{deg}. Positional accuracies are 1-2'' for sources with Sp>=20mJy/beam, and are always better than 10''. The internal flux density scale is accurate to 3%. Image artefacts have been classified using a decision tree, which correctly identifies and rejects spurious sources in over 96% of cases.
See the SUMSS site at http://www.astrop.physics.usyd.edu.au/sumsscat/ for details about all versions of the SUMSS, and an access to the mosaic images.
(1 data file).

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