other query modes : |
Identifier query |
Coordinate query |
Criteria query |
Reference query |
Basic query |
Script submission |
TAP |
Output options |
Object types |
Help |
2010MNRAS.402.2403M - Mon. Not. R. Astron. Soc., 402, 2403-2423 (2010/March-2)
The Australia Telescope 20 GHz Survey: the source catalogue.
MURPHY T., SADLER E.M., EKERS R.D., MASSARDI M., HANCOCK P.J., MAHONY E., RICCI R., BURKE-SPOLAOR S., CALABRETTA M., CHHETRI R., DE ZOTTI G., EDWARDS P.G., EKERS J.A., JACKSON C.A., KESTEVEN M.J., LINDLEY E., NEWTON-McGEE K., PHILLIPS C., ROBERTS P., SAULT R.J., STAVELEY-SMITH L., SUBRAHMANYAN R., WALKER M.A. and WILSON W.E.
Abstract (from CDS):
The completeness of the AT20G source catalogue is 91 per cent above 100 mJy/beam and 79 per cent above 50 mJy/beam in regions south of declination -15°. North of -15°, some observations of sources between 14 and 20 h in right ascension were lost due to bad weather and could not be repeated, so the catalogue completeness is lower in this region. Each detected source was visually inspected as part of our quality control process, and so the reliability of the final catalogue is essentially 100 per cent.
We detect a small but significant population of non-thermal sources that are either undetected or have only weak detections in low-frequency catalogues. We introduce the term Ultra-Inverted Spectrum to describe these radio sources, which have a spectral index α(5, 20) > +0.7 and which constitute roughly 1.2 per cent of the AT20G sample.
The 20 GHz flux densities measured for the strongest AT20G sources are in excellent agreement with the Wilkinson Microwave Anisotropy Probe (WMAP) 5-year source catalogue of Wright et al., and we find that the WMAP source catalogue is close to complete for sources stronger than 1.5 Jy at 23 GHz.
Abstract Copyright: © 2010 The Authors. Journal compilation © 2010 RAS
Journal keyword(s): methods: data analysis - catalogues - surveys - galaxies: active - cosmic microwave background - radio continuum: general
VizieR on-line data: <Available at CDS (J/MNRAS/402/2403): at20gcat.dat>
Nomenclature: at20gcat: AT20G JHHMMSS+DDMMSS N=5890.
Simbad objects: 0
To bookmark this query, right click on this link: simbad:2010MNRAS.402.2403M and select 'bookmark this link' or equivalent in the popup menu