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VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:

  
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J/PAZh/42/313
  3XMM-DR4 QSO candidates at 3<z<5.5 (Khorunzhev+, 2016)
Post annotation
img(gal)
1.J/PAZh/42/313/table1(c)Catalog of 3<z<5.5 quasar candidates (903 rows)
2.J/PAZh/42/313/table2(c)List of known quasars at z>3 not selected by our algorithm (63 rows)
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Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
   (ALL)N  Index number, within the table (meta.id)
   (ALL)Name (char) 3XMM Source name in 3XMM-DR4 (meta.id;meta.main)
   (ALL)SRCID  Source number in 3XMM-DR4 (meta.id)
   (ALL)RAJ2000 deg (i) Right ascension J2000 (degrees) (pos.eq.ra;meta.main)
   (ALL)DEJ2000 deg (i) Declination J2000 (degrees) (pos.eq.dec;meta.main)
   (ALL)FX05-2 10aW/m2 X-ray flux in 0.5-2keV (10–14erg/s/cm2) (phot.flux;em.X-ray.soft)
   (ALL)e_FX05-2 10aW/m2 Error on flux in 0.5-2keV (10–14erg/s/cm2) (stat.error)
   (ALL)ipmag mag SDSS (AB) PSF magnitude in i' band (phot.mag;em.opt.I)
   (ALL)zpmag mag SDSS (AB) PSF magnitude in z' band (phot.mag;em.opt.I)
   (ALL)zspec  (n) Spectroscopic redshift (src.redshift)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
   (ALL)r_zspec  (n) [0/1] Reference for spectroscopic redshift (Note 1)   (meta.ref;pos.frame)
   (ALL)Flag  (n) zWarning for zref=0 or reference number from HMQ (Cat. VII/273) for zref=1 (Note 1)   (meta.code.error)
   (ALL)zphot  Photometric redshift (src.redshift)
   (ALL)FL (char) Photometric data flag (Note 2)   (meta.code)
   (ALL)TQ  Best quasar template (Note 3)   (meta.id;stat.fit)
   (ALL)TS (char) Best star template (Note 4)   (meta.id;stat.fit)
   (ALL)NBand  Number of bands with reliable photometry (meta.number)
   (ALL)Sloan (char) Display the SDSS data for this quasar (meta.ref.url)
   (ALL)Simbad (char) ask the Simbad data-base about this object (meta.ref.url)

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