Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...18310406w&link_type=abstract
American Astronomical Society, 183rd AAS Meeting, #104.06; Bulletin of the American Astronomical Society, Vol. 25, p.1445
Astronomy and Astrophysics
Astronomy
1
Scientific paper
As a preview of the scientific impact we expect for the full 10,000 square degree FIRST project, we present an analysis of a region of the survey in the vicinity of the North Galactic Pole (NGP). The data have been edited, self-calibrated, mapped, and combined using the automated script described in the companion paper by Becker et al. The resulting images have a uniform noise of 0.15 mJy rms over a 2.5deg times1 .5deg (Delta delta times Delta alpha ) region centered on the NGP. A comparison of sources in overlapping areas of the fields indicate that the absolute positions are accurate to better than 0.3\arcsec. The positional accuracy as a function of flux density for point sources will be discussed, as will the flux density accuracies. The extracted source catalog includes ~ 300 sources brighter than 1 mJy. The radio properties of these sources will be discussed, and the radio catalog will be compared to existing optical and infrared catalogs covering this well-studied area of the sky. The work is supported by the University of California CalSpace program and by IGPP, Lawrence Livermore National Laboratory.
Becker Robert H.
Helfand David J.
White Richard L.
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