- ID:
- ivo://CDS.VizieR/J/ApJ/518/656
- Title:
- ASCA Large Sky Survey
- Short Name:
- J/ApJ/518/656
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We carried out the first wide-area unbiased survey with the ASCA satellite in the 0.7-10keV band around a north Galactic-pole region covering a continuous area of 7deg^2^ (Large Sky Survey; LSS). To make the best use of ASCA's capabilities, we developed a new source-detection method in which the complicated detector responses are fully taken into account. Applying this method to the entire LSS data independently in the total (0.7-7keV), hard (2-10keV), and soft (0.7-2keV) bands, we detected 107 sources altogether, with sensitivity limits of 6x10^-14^ (0.7-7keV), 1x10^-13^ (2-10keV), and 2x10^-14^ergs/s/cm^2^ (0.7-2keV), respectively. A complete list of the detected sources is presented.
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- ID:
- ivo://CDS.VizieR/J/ApJS/133/1
- Title:
- GIS catalog project : source catalog
- Short Name:
- J/ApJS/133/1
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present the first X-ray source catalog of the ASCA Medium Sensitivity Survey (AMSS, or the GIS catalog project), constructed from data at Galactic latitudes |b|>10{deg} observed between 1993 May and 1996 December. The catalog utilizes 368 combined fields and contains 1343 sources with the detection significance above 5{sigma} either in the survey bands of 0.7-7keV, 2-10keV, or 0.7-2keV, including target sources. For each source, the ASCA source name, position, a 90% error radius, count rates in the three bands, detection significances, fluxes, and a hardness ratio are provided. With extensive simulations, we carefully evaluate the data quality of the catalog. Results from cross-correlation with other existing catalogs are briefly summarized.
- ID:
- ivo://CDS.VizieR/J/ApJS/161/185
- Title:
- GIS catalog project : source catalog II
- Short Name:
- J/ApJS/161/185
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- In succession to the first ASCA Medium Sensitivity Survey catalog (AMSS-I), we present the second X-ray source catalog (AMSS-II), constructed from the Gas Imaging Spectrometer (GIS) data covering Galactic latitudes |b|>10{deg} observed between 1997 January and 2000 May. The AMSS-II catalog uses 306 fields and contains a total of 1190 sources detected with significance of >5{sigma} in either the 0.7-7, 2-10, or 0.7-2keV band. The AMSS-I and AMSS-II catalogs list a total of 2533 sources from an area of 278{deg}^2^ and provides a unique database of X-ray sources in the flux range of 10^-13^-10^-11^ergs/cm^2^/s (0.7-10keV). We summarize statistical properties of a complete X-ray sample consisting of 1969 serendipitous selected from AMSS-I and AMSS-II.
