VizieR

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VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:
 Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  
J/ApJ/999/244
  X-ray catalog and classification of 4FGL-DR4 UGSs (Neumann+ 2026)
ReadMe+ftp
2026ApJ...999..244N
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJ/999/244/table9bTargets with multiple significant X-ray sources (70 rows)

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  RAJ2000 deg (i) Right ascension in decimal degrees (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) Declination in decimal degrees (J2000) (pos.eq.dec;meta.main)
  4FGL (char) Target 4FGL identifier (meta.id;meta.main)
  logFG [mW/m2] Log {gamma}-ray 0.1-100GeV flux (erg/s/cm2) (Note 1)   (phot.flux.density;em.gamma.hard)
  e_logFG [mW/m2] Uncertainty in logFG (erg/s/cm2) (Note 1)   (stat.error)
  PLIndex  Gamma-ray photon index when fitting with PowerLaw (Note 1)   (stat.fit.param)
  VIndex  Year-to-year {gamma}-ray variability (Note 1)   (src.var.index)
  PLECSigC  Curvature significance of PLEC model (Note 1)   (stat.fit.param)
  SGU  Soft Galactic Unassociated source flag (Note 1)   (meta.code)
  SwXF4-DR4 (char) Target SwXF4-DR4 identifier (meta.id)

ALL cols		    
 (i)indexed column
  SwUVF4-DR4 (char) Target SwUVF4-DR4 identifier (meta.id)
  erad arcsec Positional XRT uncertainty (stat.error;pos)
  counts ct Background subtracted X-ray counts of XRT source (phot.count;em.X-ray)
  SNSOSTA  SOSTA XRT Signal-to-Noise (stat.snr)
  logFX [mW/m2] Unabsorbed log X-ray 0.3-10keV flux (erg/s/cm2) (phot.flux;em.X-ray)
  e_logFX [mW/m2] Uncertainty in logFX (erg/s/cm2) (stat.error)
  alphaX  X-ray photon index (stat.fit.param)
  e_alphaX  Uncertainty in PhoInd (stat.error)
  UVOT (char) Swift-UVOT filter used for Vmag (meta.code;instr.filter)
  f_UVOT (char) Flag on UVOT (Note 2)   (meta.code)
  Vmag mag (n) Apparent V band AB magnitude estimate (Note 3)   (phot.mag;em.opt.V)
  l_Vmag (char) [l] l for detection limiting V magnitude (meta.code.error)
  e_Vmag mag (n) Uncertainty in Vmag (Note 3)   (stat.error;phot.mag)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  vvmag mag (n) Apparent vv band AB magnitude measurement (Note 3)   (phot.mag;em.opt.V)
  l_vvmag (char) [l] l for detection limiting vv magnitude (meta.code.error)
  e_vvmag mag (n) Uncertainty in vvmag (Note 3)   (stat.error;phot.mag)
  bbmag mag (n) Apparent bb band AB magnitude measurement (Note 3)   (phot.mag;em.opt.B)
  l_bbmag (char) [l] l for detection limiting bb magnitude (meta.code.error)
  e_bbmag mag (n) Uncertainty in bbmag (Note 3)   (stat.error;phot.mag)
  uumag mag (n) Apparent uu band AB magnitude measurement (Note 3)   (phot.mag;em.opt.U)
  l_uumag (char) [l] l for detection limiting uu magnitude (meta.code.error)
  e_uumag mag (n) Uncertainty in uumag (Note 3)   (stat.error;phot.mag)
  w1mag mag (n) Apparent w1 band AB magnitude measurement (Note 3)   (phot.mag;em.UV)
  l_w1mag (char) [l] l for detection limiting w1 magnitude (meta.code.error)
  e_w1mag mag (n) Uncertainty in w1mag (Note 3)   (stat.error;phot.mag)
  m2mag mag (n) Apparent m2 band AB magnitude measurement (Note 3)   (phot.mag;em.UV)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  l_m2mag (char) [l] l for detection limiting m2 magnitude (meta.code.error)
  e_m2mag mag (n) Uncertainty in m2mag (Note 3)   (stat.error;phot.mag)
  w2mag mag (n) Apparent w2 band AB magnitude measurement (Note 3)   (phot.mag;em.UV)
  l_w2mag (char) [l] l for detection limiting w2 magnitude (meta.code.error)
  e_w2mag mag (n) Uncertainty in w2mag (Note 3)   (stat.error;phot.mag)
  Pbzr  (n) NNC blazar probability (stat.fit.goodness)
  Plim  (n) Blazar probability limit, mV=30 (Note 4)   (stat.fit.goodness)
  SwXF4-DR4K (char) Target SwXF4 identifier (Note 5)   (meta.id)
  PK21  (n) Blazar probability (Note 5)   (stat.fit.goodness)
  SIM-src (char) Likely counterpart in SIMBAD (meta.id.assoc)
  f_SIM-src (char) Flag on SIM-src (Note 6)   (meta.code)
  SIM-dist arcsec (n) Offset from SIMBAD counterpart (pos.distance)
  SIM-type (char) SIMBAD counterpart classification (src.class)
  Rad-src (char) Likely radio counterpart (Note 7)   (meta.id.assoc)
  Rad-dist arcsec (n) Offset from radio counterpart (pos.distance)
  FRad mJy (n) Radio counterpart radio flux density (Note 8)   (phot.flux.density;em.radio)
  Rloud  Radio loudness parameter (phot.flux;arith.ratio)
  l_Rloud   [0/1] Radio loudness parameter lower limit flag (Note 9)   (meta.code.error)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
Adapt form
 Display your selection only Reset to default columns
usage  Display UCD1+    UCD1  

The following problems were encountered in this VizieR run:
****Error execute query: Update METAhit set etime=834970594,  Ncalls = Ncalls+1 where catid=19990244 and hstid=-1 and btime=833646600
**** 
**** --POSTGRES MSG db=1
**** Report from: stdb_pg,     Status: STDB_ERR 
****ERREUR:  n'a pas pu sérialiser un accès à cause d'une mise à jour en parallÃ
****¨le 
****ERREUR:  n'a pas pu sérialiser un accès à cause d'une mise à jour en parallÃ
****¨le 
****Error execute query: Insert into METAhit (catid, hstid, btime, etime, Ncalls, N2list) VALUES (19990244,-1,833646600,834970594, 1,0)
**** 
**** --POSTGRES MSG db=1
**** Report from: stdb_pg,     Status: STDB_ERR 
****ERREUR:  la valeur d'une clé dupliquée rompt la contrainte unique « metahit_p
****key » DETAIL:  La clé « (catid, hstid, btime)=(19990244, -1, 833646600) » ex
****iste déjà. 
****ERREUR:  la valeur d'une clé dupliquée rompt la contrainte unique « metahit_p
****key » DETAIL:  La clé « (catid, hstid, btime)=(19990244, -1, 833646600) » ex
****iste déjà. 
****Error execute query: UPDATE METAstat set nother=nother+1, tother=834970594 Where phase=3 and catid=19990244
**** 
**** --POSTGRES MSG db=1
**** Report from: stdb_pg,     Status: STDB_ERR 
****ERREUR:  n'a pas pu sérialiser un accès à cause d'une mise à jour en parallÃ
****¨le 
****ERREUR:  n'a pas pu sérialiser un accès à cause d'une mise à jour en parallÃ
****¨le
If you can't find a solution, report to CDS and insert into your message the following details:

.errorfile=/tmp/VR534734.err (2026-06-17T00:16:33)
-3
-source=J/ApJ/999/244/table9b
-ref=VIZ6a31e762828ce
elapse time 1
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