VizieR

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VizieR

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J/MNRAS/405/2062/AGNs AGN candidates from 2MASS/ROSAT catalogs (Kouzuma+, 2010)
Explanation of the union (15974 rows)
  recno=4570
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ColumnValue  Explain   (UCD)
_RAJ200018 41 21.72000 "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+29 09 41.1700 "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)
_RAB195018 39 24.58847 "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+29 06 45.4793 "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)
_Glon058.43455358 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+14.85333154 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)
4570recno 4570  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
clb  Class and origin of the AGN: B = known AGN from Rosat-BSC (Cat. IX/10), b = candidate AGN from Rosat-BSC, F = known AGN from Rosat-FSC (Cat. IX/29), f = candidate AGN from Rosat-FSC (meta.note)

RAJ2000280.340500 deg (i) Right ascension (J2000) in 2MASS (pos.eq.ra;meta.main)
DEJ2000+29.161436 deg (i) Declination (J2000) in 2MASS (pos.eq.dec;meta.main)
Jmag15.319 mag 2MASS J selected default magnitude (phot.mag;em.IR.J)
Hmag14.523 mag 2MASS H selected default magnitude (phot.mag;em.IR.H)
Ksmag13.880 mag 2MASS Ks selected default magnitude (phot.mag;em.IR.K)
CRate 0.43820 ct/s Source count rate (Note 1)   (phot.count;em.X-ray)
e_CRate 0.03330 ct/s Error on CRate (Note 1)   (stat.error)
bgCt 6.792e-04 ct/s/arcmin2 Background count rate (Note 1)   (arith.rate;instr.background)
texp 403 s Exposure time (time.duration;obs.exposure)
HR1 0.97   [-1/1] Hardness ratio 1 (Note 2)   (phot.flux;arith.ratio)
e_HR1 0.02   Error on HR1 (Note 3)   (stat.error)
HR2 0.39   [-1/1] Hardness ratio 2 (Note 2)   (phot.flux;arith.ratio)
e_HR2 0.07   Error on HR2 (Note 3)   (stat.error)
Extent 12 arcsec Source extent, by which the source image exceeds the point spread function (instr.det.psf)
Obs.beg  "Y:M:D" Start time of observation (FSC only) (time.start;obs)
Obs.end  "Y:M:D" End time of observation (FSC only) (time.end;obs)
Rel    Reliability of source detection (FSC data only) (meta.code.qual;instr.saturation)

XX  Display the ROSAT data (Voges et al. 1999-2000, Cat. IX/10 + IX/29) (meta.ref.url)
2M2M  Display the 2MASS data (Cutri et al. 2003, Cat. II/246) (meta.ref.url)
  
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