From: eric@flesch.org (Eric Flesch)
Newsgroups: sci.astro,alt.astronomy
Subject: 112,044 Quasar Candidates for those with idle spectroscopes
Date: Mon, 07 Oct 2002 17:11:10 GMT
NNTP-Posting-Host: 210.48.22.5


Get 112,044 quasar candidates from the Free Lunch radio/xray/optical
catalogue on ftp://quasars.org .  It is 11.2Mb zipped, and displays
425,932 optical objects (visible on APM or USNO) which are associated
to xray/radio detections, or are known quasars.  Associations
presented are: 

ROSAT HRI:  13,902 optical associations out of 103,098 xray detections
ROSAT RASS: 24,585 / 124,730 xray 
ROSAT PSPC: 28,048 / 102,005 xray
WGA (PSPC): 18,897 / 88,434 xray 
FIRST:  160,249 / 743,059 radio, including 9229 double radio lobes.
NVSS:  244,509 / 1,814,748 radio, incl 2242 lobes.
SUMSS:  16,320 / 99,554 radio, incl 16 lobes.

These associations yield 112,044 good quasar candidates, with
calculated percentage of being a QSO displayed for each object.  Also
27,394 catalogued quasars are displayed (regardless of radio or xray
detection), which are visible on APM or USNO, as well as all
radio/xray-associated galaxies, blazars, and stars.  There is also a
more comprehensive Master catalogue on the same site, which gives
additional information about each optical object.  There are also
small sample files for you to eyeball. 

QUASARS.ORG.  There is no second place.  ftp://quasars.org

Eric Flesch
Wellington, New Zealand