*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
VIII/59 ==OBSOLETE version of Catalogue==
18-Apr-2003: See VIII/71
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=VIII/59
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
drwxr-xr-x 112 cats archive 4096 Nov 7 15:27 [Up]
drwxr-xr-x 2 cats archive 221 Jan 13 2023 [TAR file]
-rw-r--r-- 1 cats archive 369 Dec 19 2022 .message
-rw-r--r-- 1 cats archive 60 Apr 18 2003 =obsolete=
-r--r--r-- 1 cats archive 11941 Dec 24 1999 ReadMe
-r--r--r-- 1 cats archive 20741525 Dec 24 1999 first.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe :VIII/59 the FIRST Survey, version 1999Jul (White+ 1999)
================================================================================
The FIRST Survey Catalog of 1.4GHz radio sources
White R.L., Becker R.H., Helfand D.J., Gregg M.D.
<Astrophys. J. 475, 479 (1998)>
=1997ApJ...475..479W
================================================================================
ADC_Keywords: Radio sources ; Surveys
Description:
The FIRST survey to produce Faint Images of the Radio Sky at Twenty
centimeters began in 1993. It uses the VLA (Very Large Array, a
facility of the National Radio Observatory (NRAO)) at a frequency of
1.4GHz, and it is slated to 10,000 deg^2^ to a sensitivity of about
1mJy with an angular resolution of about 5". The co-added images are
available on the Internet (see the FIRST home page at
http://sundog.stsci.edu/ for details). The source catalogue is derived
from the images.
This version of the FIRST Survey is derived from the 1993 through 1998
observations, and contains 549,707 sources covering the north and
south Galactic caps. The catalog covers about a total of 6060 square
degrees of sky (5450 square degrees in the north and 610 square
degrees in the south).
No new data were taken for the south Galactic cap from the preceding
version (catalog VIII/51), but the southern images south of about -2
degrees were reprocessed with an improved pipeline script that
substantially reduces the sidelobe levels in a small fraction of the
fields. Consequently, many of the southern sources have slight changes
in their positions, flux densities, and other properties; a small
number of sources from the previous catalog are missing from this
catalog.