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VizieR

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J/ApJS/192/10/table4 Chandra ACIS survey in 383 nearby galaxies. I. (Liu, 2011)
X-ray point sources in nearby galaxies (17559 rows)
  recno=14916
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ColumnValue  Explain   (UCD)
_RAJ200022 37 02.84600 "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+34 26 08.6600 "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)
_RAB195022 34 45.41650 "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+34 10 33.4713 "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)
_Glon093.72937029 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-20.70481365 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)
14916recno 14916  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

Group151   [1/320] Group number (meta.id)
CXOJ223702.846+342608.66  (i) Source name (JHHMMSS.sss+DDMMSS.ss) (linked to individual observations ) (Note 1)   (meta.id;meta.main)

U   U indicates an ultraluminous X-ray source, S an ultraluminous supersoft X-ray source (meta.ref.url)

ePos 1.00 arcsec Source positional uncertainty (Note 2)   (stat.error;pos)
NameNGC7331-X55  Galatic source name (Note 3)   (meta.id)
alpha 1.092 arcmin Galactic source nuclear separation (pos.angDistance)
r25 0.27   Galactic source nuclear separation (Note 4)   (pos.angDistance)
Dist 14.52 Mpc Distance to source (pos.distance;pos.heliocentric)
V/D1/1  Ratio of time source was observed to detected (meta.number)
LX 6.450e+37 10-7W Maximum computed luminosity; in erg/s (phys.luminosity;em.X-ray)
FX 2.55e-15 mW/m2 Average computed X-ray flux; in erg/s/cm2 (phot.flux;em.X-ray)
F/F 1.0  The Fmax/Fmin flux ratio (Note 5)   (phot.flux;arith.ratio)
E_F/F    Positive error in F/F (stat.error;stat.max)
e_F/F    Negative error in F/F (stat.error;phys.abund)
Sigmax 3.6  Maximum detection significance (stat.likelihood;obs)
Cmax 8.8  Maximum photon counts from detections (phot.count;em.X-ray)
SQHd1  Phase statistics (Note 6)   (src.class)
PKS   K-S criterion variability statistics (Note 7)   (stat.fit.goodness;src.var)
Note   Source identification (Note 8)   (meta.note)

_RA339.261858 deg (i) Positions from CXO names (right ascension part) (pos.eq.ra;meta.main)
_DE+34.435739 deg (i) Positions from CXO names (declination part) (pos.eq.dec;meta.main)
  
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