VizieR

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

Catalog

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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/PAZh/45/464
  3XMM-DR4 QSO candidates optical spectroscopy (Khorunzhev+, 2019)
ReadMe+ftp
2019PAZh...45..464K
Similar Catalogs
Post annotation 		img(gal)
1.J/PAZh/45/464/table1Quasar catalog (58 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)
  Name (char) 3XMM object name in 3XMM-DR4 (Cat. IX/44), JHHMMSS.s+DDMMSS (meta.id;meta.main)
  RAJ2000 deg (i) Right ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) Declination (J2000) (pos.eq.dec;meta.main)
  objID (char) SDSS objID (meta.id)
  FX05-2 10aW/m2 X-ray flux 0.5-2 keV band (in 10–14erg/s/cm2) (phot.flux;em.X-ray.soft)
  ipmag mag SDSS PSF magnitude in i band (phot.mag;em.opt.I)
  zph  Photometric redshift (src.redshift)
  Obs.Date "Y:M:D" (n)Observation Date YYYY/MM/DD (time.epoch;obs)
  Inst (char) Instrument of observation (Note 1)   (instr;obs)
  Etime (char) s N_exposure x timeofexposure (time.expo)
  zsp  (n) Spectroscopic redshift (Note 2)   (src.redshift)
  QF (char) Quality flag for object spectrum (Note 3)   (meta.code.qual)
  Sloan  Display the SDSS data for this object (meta.ref.url)
  Simbad  ask the Simbad data-base about this object (meta.ref.url)

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