Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...189.0902g&link_type=abstract
American Astronomical Society, 189th AAS Meeting, #09.02; Bulletin of the American Astronomical Society, Vol. 28, p.1284
Astronomy and Astrophysics
Astronomy
Scientific paper
We have constructed an X-ray source catalog using data acquired with the Solid-state Imaging Spectrometer (SIS) on-board the ASCA Observatory. A sensitive search is made for bright and faint point-like sources in the broad (0.5 -- 12 keV), soft, and hard spectral bands (< / > 2.0 keV)}. This catalog is populated by both target and serendipitous sources in the SIS field-of-view. We used data available from the ASCA public archive which contains, as of 24 Oct 1996, a total of 1010 SIS individual pointings with greater than 1000 secs of screened imaging data, for a total of 58.5 Msecs of nominal exposure time. The SIS data were acquired in a combinations of 1/2/4 CCD data modes. Because of the complex ASCA mirror response function, the sensitivity of detection, and therefore, the source number estimates, are highly dependent on the specific field and the data collection mode. Along with the preliminary catalog, we present a sample of SIS fields and the sources found therein, and discuss the type and number of serendipitous sources we are finding.
Gotthelf Eric Van
White Nicholas E.
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