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Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  X-ray/UV ratio of 2XMM AGN (Vagnetti+, 2010)
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1.J/A+A/519/A17/table1Sources studied in the paper (315 rows)

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)
  Seq   [1/241] Source sequential number (meta.record)
  Nepo  (n) Epoch serial number (
  2XMM (char) 2XMM source name (JHHMMSS.s+DDMMSS) (;meta.main)
  Epoch d Epoch of observation (MJD) (time.epoch)
  z  Redshift (src.redshift)
  fRL   [-1/1] Radio-loud flag (1=radio-loud) (Note 1)   (meta.code)
  fBAL   [0/1] BAL flag (1=BAL, 2=non-BAL) (meta.code)
  logLUV [10-7W/Hz]UV (2500Å) luminosity (phys.luminosity;em.UV)
  logLX [10-7W/Hz]X-ray (2keV) luminosity (phys.luminosity;em.X-ray)
  alp.ox  UV to X-ray power law index (Note 3)   (spect.index)
  Dalp.ox  Residual of αox (
  HR3  Hardness ratio between bands 1-2 and 2-4.5keV (phot.flux;em.X-ray.medium;arith.ratio)
  _RA deg (i) Position from 2XMM name (right ascension part) (pos.eq.ra;meta.main)
  _DE deg (i) Position from 2XMM name (declination part) (pos.eq.dec;meta.main)

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