ADC/CDS Standard Document for Catalog:
/catalogs/9/9012/

IMPORTANT NOTICE:

Superseded              The WGACAT version of ROSAT sources   (White+ 1995)
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The WGACAT version of the ROSAT PSPC Catalogue, Rev. 1
     White N.E., Giommi P., Angelini L.
    <HEASARC, Code 660, LHEA/GSFC, Greenbelt (1995)>
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ADC_Keywords: X-ray sources
Mission_Name: ROSAT

Description:
    WGACAT is  a catalogue of point sources  generated at HEASARC from all
    the ROSAT PSPC  (Position  Sensitive  Proportional  Counter)  pointing
    observations from Feb  1991  to  March  1994.  These  were  the  files
    available  in the public archive at HEASARC as of September 1994. This
    catalog is an  independent  research  effort  aimed  at  releasing  as
    quickly as possible a list of sources detected by ROSAT in its pointed
    phase to:
    (1) identify the detected sources,
    (2) ensure their timely observation by currently active X-ray missions
        e.g. ASCA,
    (3) to  search for objects which show exceptional time variability and
        spectral properties and
    (4) to provide an independent check of the detection technique used in
        the official ROSAT project (SAS) processing.
    WGACAT   stands for   N.E. White (HEASARC/GSFC). P. Giommi (ESA),  and
    L. Angelini (HEASARC/GSFC)


See also:
   Superseded by catalog 9031 in August 2000:

   9031 The WGACAT version of ROSAT sources   (White+ 2000)
   at URL ftp://adc.astro.umd.edu/pub/adc/archives/catalogs/9/9031


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