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 Damped Lymanα systems (Ellison+, 2009)
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1.J/MNRAS/392/998/table4*MgII 2796 equivalent widths (and errors) and dV for the 3 approaches used in this paper (Note) (56 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)
  QSO (char) QSO name (;meta.main)
  logNHI [cm-2] HI column density (phys.columnDensity)
  e_logNHI [cm-2] rms uncertainty on logNHI (stat.error)
  EW(ew) 0.1nm Equivalent width at 90% EW (spect.line.eqWidth)
  e_EW(ew) 0.1nm rms uncertainty on EW(ew) (stat.error)
  DV(ew) km/s Velocity spread (DeltaV) at 90% EW (spect.line.width)
  EW(vel) km/s Equivalent width at 90% vel (spect.line.eqWidth)
  e_EW(vel) km/s rms uncertainty on EW(vel) (stat.error)
  DV(vel) km/s Velocity spread (DeltaV) at 90% of the velocity range (spect.line.width)
  EW(3s) km/s Equivalent width at 3σ (spect.line.eqWidth)
  e_EW(3s) km/s rms uncertainty on EW(3s) (stat.error)
  DV(3s) km/s Velocity spread (DeltaV) at bounds set by 3σ absorption (spect.line.width)
  SimbadName (char) Designation understandable by the Simbad data-base (
  _RA deg Right Ascension (J2000) from SIMBAD (not part of the original data) (pos.eq.ra;meta.main)
  _DE deg Declination (J2000) from SIMBAD (not part of the original data) (pos.eq.dec;meta.main)

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