VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .
CDS

VizieR

  
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/table7Potential radio counterparts to X-ray singlets (218 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) AFGL identifier, JHHMM.m+DDMM (meta.id;meta.main)
  SwXF4-DR4 (char) SwXF4-DR4 name (JHHMMSS.s+DDMMSS) (meta.id)
  l_Vmag (char) Limit flag on Vmag (meta.code.error)
  Vmag mag (n) V-band magnitude (phot.mag;em.opt.V)
  RName (char) Radio Source name (meta.id.assoc)
  Offset arcsec (n) Offset betweeb gamma and radio sources (pos.distance)
  Frad mJy (n) Radio flux density (phot.flux.density;em.radio)
  l_R (char) Limit flag on R (meta.code.error)
  R  (n) Radio-loudness parameter (Note 1)   (phot.flux;arith.ratio)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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