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J/A+A/434/483/table2 An XMM-Newton survey of M 31 (Pietsch+, 2005)
X-ray source catalogue of the XMM-Newton EPIC M 31 observations (856 rows)
  recno=315
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ColumnValue  Explain   (UCD)
_RAJ200000 42 42.5100 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000+40 51 55.100 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195000 39 58.4233 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950+40 35 29.523 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon121.1523394 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat-21.9762782 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
315recno 315  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

[PFH2005]315  Source Number (meta.id;meta.main)
M31IDs1  Code of the detection field in which the source was entered in the catalogue (obs.field)
RAJ200000 42 42.51 "h:m:s" (i) Right Ascension J2000 (pos.eq.ra;meta.main)
DEJ2000+40 51 55.1 "d:m:s" (i) Declination J2000 (pos.eq.dec;meta.main)
PosErr 0.17 arcsec Positional error (Note 1)   (stat.error;pos)
LH 9.4e+03  Source detection likelihood (combined EPIC) (stat.likelihood;instr.saturation)
CRate 3.1e-01 ct/s Combined EPIC count rate (Note 2)   (phot.count;em.X-ray)
e_CRate 5e-03 ct/s Error in CRate (stat.error)
CFlux 6.7e-13 mW/m2 Combined EPIC flux in erg/cm2/s (Note 2)   (phot.flux;em.X-ray)
e_CFlux 1e-14 mW/m2 Error in CFlux (stat.error)
CHR1 0.31   Combined EPIC hardness ratio 1 (Note 3)   (phot.flux;arith.ratio)
e_CHR1 0.02   Error in CHR1 (stat.error)
CHR2 0.07   Combined EPIC hardness ratio 2 (Note 3)   (phot.flux;arith.ratio)
e_CHR2 0.02   Error in CHR2 (stat.error)
CHR3-0.28   Combined EPIC hardness ratio 3 (Note 3)   (phot.flux;arith.ratio)
e_CHR3 0.02   Error in CHR3 (stat.error)
CHR4-0.33   Combined EPIC hardness ratio 4 (Note 3)   (phot.flux;arith.ratio)
e_CHR4 0.04   Error in CHR4 (stat.error)
VALTFF  EPIC instruments contributing to source detection (Note 4)   (meta.id;instr)
PNExpo 14.3 ks Exposure of EPIC pn instrument (instr;obs.exposure)
PNLH 9.4e+03   EPIC pn source detection likelihood (stat.likelihood)
PNRate 3.1e-01 ct/s EPIC pn count rate (Note 2)   (phot.count;em.X-ray)
e_PNRate 5e-03 ct/s Error in PNRate (stat.error)
PNFlux 6.7e-13 mW/m2 EPIC pn flux in erg/cm2/s (Note 2)   (phot.flux;em.X-ray)
e_PNFlux 1e-14 mW/m2 Error in PNFlux (stat.error)
PNHR1 0.31   EPIC pn hardness ratio 1 (Note 3)   (phot.flux;arith.ratio)
e_PNHR1 0.02   Error in PNHR1 (stat.error)
PNHR2 0.07   EPIC pn hardness ratio 2 (Note 3)   (phot.flux;arith.ratio)
e_PNHR2 0.02   Error in PNHR2 (stat.error)
PNHR3-0.28   EPIC pn hardness ratio 3 (Note 3)   (phot.flux;arith.ratio)
e_PNHR3 0.02   Error in PNHR3 (stat.error)
PNHR4-0.33   EPIC pn hardness ratio 4 (Note 3)   (phot.flux;arith.ratio)
e_PNHR4 0.04   Error in PNHR4 (stat.error)
M1Expo  ks Exposure of EPIC MOS1 instrument (instr;obs.exposure)
M1LH    EPIC MOS1 source detection likelihood (stat.likelihood)
M1Rate  ct/s EPIC MOS1 count rate (Note 2)   (phot.count;em.X-ray)
e_M1Rate  ct/s Error in M1Rate (stat.error)
M1Flux  mW/m2 EPIC MOS1 flux in erg/cm2/s (Note 2)   (phot.flux;em.X-ray)
e_M1Flux  mW/m2 Error in M1Flux (stat.error)
M1HR1    EPIC MOS1 hardness ratio 1 (Note 3)   (phot.flux;arith.ratio)
e_M1HR1    Error in M1HR1 (stat.error)
M1HR2    EPIC MOS1 hardness ratio 2 (Note 3)   (phot.flux;arith.ratio)
e_M1HR2    Error in M1HR2 (stat.error)
M1HR3    EPIC MOS1 hardness ratio 3 (Note 3)   (phot.flux;arith.ratio)
e_M1HR3    Error in M1HR3 (stat.error)
M1HR4    EPIC MOS1 hardness ratio 4 (Note 3)   (phot.flux;arith.ratio)
e_M1HR4    Error in M1HR4 (stat.error)
M2Expo  ks Exposure of EPIC MOS2 instrument (instr;obs.exposure)
M2LH    EPIC MOS2 source detection likelihood (stat.likelihood)
M2Rate  ct/s EPIC MOS2 count rate (Note 2)   (phot.count;em.X-ray)
e_M2Rate  ct/s Error in M2Rate (stat.error)
M2Flux  mW/m2 EPIC MOS2 flux in erg/cm2/s (Note 2)   (phot.flux;em.X-ray)
e_M2Flux  mW/m2 Error in M2Flux (stat.error)
M2HR1    EPIC MOS2 hardness ratio 1 (Note 3)   (phot.flux;arith.ratio)
e_M2HR1    Error in M2HR1 (stat.error)
M2HR2    EPIC MOS2 hardness ratio 2 (Note 3)   (phot.flux;arith.ratio)
e_M2HR2    Error in M2HR2 (stat.error)
M2HR3    EPIC MOS2 hardness ratio 3 (Note 3)   (phot.flux;arith.ratio)
e_M2HR3    Error in M2HR3 (stat.error)
M2HR4    EPIC MOS2 hardness ratio 4 (Note 3)   (phot.flux;arith.ratio)
e_M2HR4    Error in M2HR4 (stat.error)
XID[TF91]51, [SHP97]188, [SHL2001]188(v), s1-32   X-ray identification (Note 5)   (meta.id)
USNOB1.0    Name of brightest USNO-B1.0 source within search area (meta.id.cross)
o_USNOB1.0    Number of USNO-B1.0 correlations (meta.number)
USNOdist  arcsec Distance of source USNO-B1.0 (pos.angDistance)
USNOB2  mag B2 magnitude of source USNO-B1.0 (phot.mag;em.opt.B)
USNOR2  mag R2 magnitude of source USNO-B1.0 (phot.mag;em.opt.R)
USNOI  mag I magnitude of source USNO-B1.0 (phot.mag;em.opt.I)
log(fX/fopt)    Logarithm of X-ray-to-optical fluxes (phot.flux;arith.ratio)
ClassGal   Classification of X-ray source (Note 6)   (src.class)
RemarksNGC 221, M 32 (NED)   Additional remarks (Note 7)   (meta.note)

USNO-BUSNO-B  Find all USNO-B1 sources within 60" (meta.ref.url)
  
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