VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN 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/ApJS/280/23
  Radio-loudness stat. of QSOs from Quaia-VLASS (Arsenov+, 2025)
ReadMe+ftp
2025ApJS..280...23A
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJS/280/23/table3Quaia-VLASS cross-matches catalog (43650 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)
  GaiaDR3  Gaia DR3 source identifier from Quaia (Storey-Fisher+ 2024, J/ApJ/964/69) (meta.id;meta.main)
  unWISE (char) unWISE DR1 source identifier from Quaia (meta.id.cross;em.IR)
  z   [0.08/4.4] Spectrophotometric redshift estimate from Quaia (src.redshift)
  e_z   [0.02/1.7] Uncertainty in z from Quaia (stat.error;src.redshift)
  RA_ICRS deg (i) Barycentric right ascension from Quaia (ICRS) at Ep=2016.0 (pos.eq.ra;meta.main)
  DE_ICRS deg (i) [-40/89] Barycentric declination from Quaia (ICRS) at Ep=2016.0 (pos.eq.dec;meta.main)
  Gmag mag [13.8/20.5] Apparent Gaia G-band mean magnitude from Quaia, not extinction corrected (G'; photgmean_mag) (phot.mag;em.opt)
  BPmag mag [13.9/21.3] Apparent Gaia integrated BP mean magnitude from Quaia (phot.mag;em.opt.B)
  RPmag mag [13.4/20.7] Apparent Gaia integrated RP mean magnitude from Quaia (phot.mag;em.opt.R)
  W1mag mag [8.9/18.1] Apparent unWISE W1 magnitude from Quaia (phot.mag;em.IR.3-4um)

ALL cols		    
 (i)indexed column
  W2mag mag [7.9/17.2] Apparent unWISE W2 magnitude from Quaia (phot.mag;em.IR.4-8um)
  Name (char) Unique VLASS name (JHHMMSS.ss+DDMMSS.s) (meta.id.cross;em.radio.1500-3000MHz)
  RAVdeg deg VLASS right ascension (pos.eq.ra;em.radio.1500-3000MHz)
  DEVdeg deg [-40/89] VLASS declination (pos.eq.dec;em.radio.1500-3000MHz)
  Ftot mJy [0.02/7379] Integrated radio flux density from VLASS (phot.flux.density;em.radio.1500-3000MHz)
  r mag [0.002/0.97] Sky area's reddening (Note 1)   (phys.absorption)
  tmag mag [6.7/20.6] Apparent radio magnitude from this work; Equation 3 (t=-2.5log(Ftot/3631Jy)) (phot.mag;em.radio.1500-3000MHz)
  Gmag0 mag [13.7/20.5] Apparent extinction corrected G-band magnitude from this work; Eq. 2 (Note 1)   (phot.mag;arith.diff)
  GMag mag [-31.6/-19.8] Absolute extinction corrected G-band magnitude from this work; Equation 5 (Gabs=G+5-5.log(dlm(z))) (phys.magAbs;em.opt)
  Sep arcsec [0.0007/1.5] Angular separation between VLASS and Quaia coordinates from this work (pos.angDistance)
  Loud   [0/1] Loudness flag from this work; Eq. 4 (1=radio-loud) (Note 2)   (phot.flux;arith.ratio)
  VLASSEp1  (n)Display data from VLASS QL Ep.1 catalog (Gordon+ 2021, J/ApJS/255/30) within 1.5" (meta.ref.url)

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