/ftp/cats/ix/43



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IX/43         1SXPS Swift X-ray telescope point source catalogue  (Evans+ 2014)
The following files can be converted to FITS (extension .fit or fit.gz)
	sources.dat xcor.dat
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Query from: http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=IX/43
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drwxr-xr-x 49 cats archive 4096 Mar 28 15:18 [Up] drwxr-xr-x 3 cats archive 4096 Sep 10 2014 [TAR file] -rw-r--r-- 1 cats archive 467 Feb 12 2014 .message -r--r--r-- 1 cats archive 30204 Feb 12 2014 ReadMe -rw-r--r-- 1 cats archive 3013 Feb 12 2014 +footg5.gif -rw-r--r-- 1 cats archive 42393 Feb 12 2014 +footg8.gif -r--r--r-- 1 cats archive 8980997 Aug 30 2013 paper.pdf -r--r--r-- 1 cats archive 43643253 Jan 9 2014 sources.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 9043297 Jan 9 2014 xcor.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe : IX/43 1SXPS Swift X-ray telescope point source catalogue (Evans+ 2014) ================================================================================ 1SXPS: A deep Swift X-ray telescope point source catalogue with light curves and spectra Evans P.A., Osborne J.P., Beardmore A.P., Page K.L., Willingale R., Mountford C.J., Pagani C., Burrows D.N., Kennea J.A., Perri M., Tagliaferri G., Gehrels N. <Astrophys. J., Suppl. Ser. 210, 8 (2014)> =2013yCat.9043....0E =2014ApJS..210....8E ================================================================================ ADC_Keywords: X-ray sources ; Surveys Mission_Name: Swift Keywords: Catalogs ; Surveys ; X-rays: observations ; Methods: data analysis Abstract: We present the 1SXPS (Swift-XRT Point Source) catalogue of 151,524 X-ray point-sources detected by the Swift-XRT in 8 years of operation. The catalogue covers 1905 square degrees distributed approximately uniformly on the sky. We analyze the data in two ways. First we consider all observations individually, for which we have a typical sensitivity of  3e-13 erg.cm^-2^s^-1` (0.3-10 keV). Then we co-add all data covering the same location on the sky: these images have a typical sensitivity of  9e-14 erg cm^-2^s^-1^ (0.3-10 keV). Our sky coverage is nearly 2.5 times that of 3XMM-DR4, although the catalog is a factor of  1.5 less sensitive. The median position error is 5.5" (90% confidence), including systematics. Our source detection method improves on that used in previous XRT catalogues and we report >68,000 new X-ray sources. The goals and observing strategy of the Swift satellite allow us to probe source variability on multiple timescales, and we find  30,000 variable objects in our catalog. For every source we give positions, fluxes, time series (in four energy bands and two hardness ratios), estimates of the spectral properties, spectra and spectral fits for the brightest sources, and variability probabilities in multiple energy bands and timescales. Description: The 1SXPS catalogue is a point-source catalogue built from all Swift-XRT Photon Counting mode data of at least 100-s in duration gathered prior to 2012 October 12 (Swift was launched in 2004 November). It contains positions, fluxes, spectral details, variability information and a flag indicating the reliability of the detection for 151,524 objects. Various values (e.g. the count rates) are given in 4 bands: Total = 0.3-10 keV Soft = 0.3-1 keV Medium = 1-2 keV Hard = 2-10 keV The source detection was performed in each of these bands independently, and the results combined to give this final catalogue.

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