The Parkes-MIT-NRAO Surveys. V. Maps for the Tropical Survey Covering -29 degrees < delta < -9 degrees
Abstract
The Parkes-MIT-NRAO (PMN) 4.85 GHz continuum survey of the southern sky was undertaken in 1990 June and November and covered -88^deg^ < δ < -9^deg^. This survey used the Parkes 64 m Telescope of the Australia Telescope National Facility and the NRAO seven-beam receiver. This paper describes the maps for the Tropical Survey zone covering the declination band -29^deg^ < δ < -9^deg^, which were produced using the Astronomical Image Processing System (AIPS). The maps have a FWHM resolution of ~5'. The rms uncertainty in position for strong sources is ~10" in right ascension and 8" in declination. This uncertainty increases to ~30" in both right ascension and declination for sources near the flux limits. The rms map brightness fluctuations caused by noise and confusion increase from 9 mJy beam^-1^ at δ~-9^deg^ to 11 mJy beam^-1^ at δ~-29^deg^.
- Publication:
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The Astronomical Journal
- Pub Date:
- June 1994
- DOI:
- Bibcode:
- 1994AJ....107.2115T
- Keywords:
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- Astronomical Maps;
- Sky Surveys (Astronomy);
- Southern Sky;
- Error Analysis;
- Flux Density;
- Point Sources;
- Position (Location);
- Astronomy;
- SURVEYS