Table 9

List of parameters provided in the public X-ray catalogues.

Column name/s Units Explanation X m o C
Bseq|CDseq Internal sequence number (unique)
Bcatname|CDcatname IAU catalogue name 3XLSSx Jhhmmss.s-ddmmss, x=B or CD
Xseq Numeric pointer to merged entry see Table 10
Xcatname Name pointer to merged entry see Table 10
Xlsspointer Xseq of corresponding source in 2XLSSd catalogue
XFieldName XMM pointing name
Xbadfield 0|1|2|3 Pointing quality from best (0) to worst (3)
expm1 s MOS1 camera exposure in the band
expm2 s MOS2 camera exposure in the band
exppn s pn camera exposure in the band
gapm1 ′′ MOS1 distance to nearest gap
gapm2 ′′ MOS2 distance to nearest gap
gappn ′′ pn distance to nearest gap
Bnearest|CDnearest ′′ Distance to nearest detected neighbour
Bc1c2|CDc1c2 0|1|2 1 for class C1, 2 for C2, 0 for undefined
Bp1|CDp1 0|1 Application of the P1 recipea
Bcorerad|CDcorerad ′′ Core radius EXT (for extended sources)
Bextlike|CDextlike Extension statistic EXT_STAT
Bdetlik_pnt|CDdetlik_pnt Detection statistic PNT_DET_STAT for point-like fit
Bdetlik_ext|CDdetlik_ext Detection statistic EXT_DET_STAT for extended fit
Boffaxis|CDoffaxis Off-axis angle
Brawra_pnt|CDrawra_pnt ° Source RA (not astrometrically corrected) for point-like fit
Brawdec_pnt|CDrawdec_pnt ° Source Dec (not astrometrically corrected) for point-like fit
Brawra_ext|CDrawra_ext ° Source RA (not astrometrically corrected) for extended fit
Brawdec_ext|CDrawdec_ext ° Source Dec (not astrometrically corrected) for extended fit
Bra_pnt|CDra_pnt ° Source RA (astrometrically corrected) for point-like fit
Bdec_pnt|CDdec_pnt ° Source Dec (astrometrically corrected) for point-like fit
Bra_ext|CDra_ext ° Source RA (astrometrically corrected) for extended fit
Bdec_ext|CDdec_ext ° Source Dec (astrometrically corrected) for extended fit
Bposerr|CDposerr ′′ Error on coordinates per Table 4 of Chiappetti et al. (2013)
Bratemos_pnt|CDratemos_pnt ct s−1 detector−1 MOS count rate CRMOS for point-like fit
Bratepn_pnt|CDratepn_pnt ct s−1 pn count rate CRPN for point-like fit
Bratemos_ext|CDratemos_ext ct s−1 detector−1 MOS count rate CRMOS for extended fit
Bratepn_ext|CDratepn_ext ct s−1 pn count rate CRPN for extended fit
countmos_pnt ct MOS number of counts for point-like fit
countpn_pnt ct pn number of counts for point-like fit
countmos_ext ct MOS number of counts for extended fit
countpn_ext ct pn number of counts for extended fit
bkgmos_pnt ct pixel−1 detector−1 MOS local background for point-like fit
bkgpn_pnt ct pixel−1 pn local background for point-like fit
bkgmos_ext ct pixel−1 detector−1 MOS local background for extended fit
bkgpn_ext ct pixel−1 pn local background for extended fit
Bflux|CDflux erg cm−2 s−1 Source flux (undefined i.e. −1 for extended)
Bfluxerr|CDfluxerr erg cm−2 s−1 Error on source flux
Bfluxflag|CDfluxflag 0|1|2 0 if MOS-pn difference < 20%, 1 btw. 20–50%, 2 >50%

Notes. All are available at the XXL Milan database as separate tables: 3XLSSB for the soft band and 3XLSSCD for the hard band. The column name has a prefix when there are two column names given (one with the prefix B and one with the prefix CD). Only the column applicable to the given band appears in the relevant table, but both may show up in the band-merged table 3XLSS. Column names without prefixes are relevant to the individual band only. The last four columns indicate respectively: (X) whether a parameter is computed by XAMIN, in which case the name given in Table 1 of XXL Paper XXIV is listed in the explanation column; (m) whether a parameter is also available in the band-merged table; (o) whether a parameter is present in the multiwavelength table together with those described in Table 11; and (C) whether a parameter is present in the catalogue stored at CDS. (a) Bp1 or CDp1 is set to 1 if the nominal application of the P1 recipe (see Sect. 2.1) is successful in the soft or hard band, respectively. There is a limited number of sources (9 in XXL-N and 9 in XXL-S) band-merged as EP, i.e. extended in the soft and pointlike in the hard band, for which the P1 recipe is successful in the hard band.

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