VizieR

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VizieR

  
J/ApJ/999/244
  X-ray catalog and classification of 4FGL-DR4 UGSs (Neumann+ 2026)
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2026ApJ...999..244N
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Post annotation 		img(gal)
1.J/ApJ/999/244/table4Parameters for X-Ray sources detected with Swift-XRT within 4FGL-DR4 unassociated source uncertainty ellipses (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)
  4FGL (char) Target AFGL identifier, JHHMM.m+DDMM (Note 1)   (meta.id;meta.main)
  logFG [mW/m2] (n) log {gamma}-ray 0.1-100GeV flux (erg/s/cm2) (phot.flux.density;em.gamma.hard)
  PLIndex  (n) gamma-ray photon index when fitting with PowerLaw (stat.fit.param)
  logVIndex [-] (n) Year-to-year {gamma}-ray variability (src.var.index)
  logPLECSigC [-] (n) Curvature significance of PLEC model (stat.fit.param)
  SwXF4-DR4 (char) XRT designation, JHHMMSS.s+DDMMSS, SwXF4-DR4 (meta.id)
  SwUVF4-DR4 (char) UVOT designation, JHHMMSS.s+DDMMSS, SwUVF4-DR4 (meta.id)
  S/N  XRT signal-to-noise ratio (stat.snr)
  logFX [mW/m2] Unabsorbed log X-ray 0.3-10keV flux (erg/s/cm2) (Note 2)   (phot.flux;em.X-ray)
  alphaX  X-ray photon index (Note 2)   (stat.fit.param)
  Filter (char) UVOT filter used to calculate Vmag (instr.setup;instr.filter)
  l_Vmag (char) Limit flag on V-band (meta.code.error)
  Vmag mag (n) V-band magnitude calculated with UVOT filter (Note 3)   (phot.mag;em.opt.V)
  SwXF4-DR4K (char) SwXF4-DR4 identifier, JHHMMSS.s+DDMMSS, Kerby et al. (2021ApJ...923...75K, Cat. J/ApJ/923/75K) (Note 4)   (meta.id)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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 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.
If you can't find a solution, report to CDS and insert into your message the following details:

.errorfile=/tmp/VR534736.err (2026-06-17T00:16:33)
-3
-source=J/ApJ/999/244/table4
-ref=VIZ6a31e762828d0
elapse time 1
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