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J/ApJ/777/168
  CIV and SiIV broad absorption line troughs in SDSS (Filiz+, 2013)
spectrum
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img(gal)
1.J/ApJ/777/168/varegsCIV- (table4) and SiIV- (table5) BAL-trough variable regions (1231 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)
  VID (char) Variable region identifier (Note G1)   (meta.id;meta.main)
  SDSS (char) QSO identification; JHHMMSS.ss+DDMMSS.s (meta.id.assoc)
  MJD1 d Modified Julian date of first-epoch observation (time.epoch)
  MJD2 d Modified Julian date of second-epoch observation (time.epoch)
  BID (char) CIV BAL/SiIV BAL trough ID as given in Table 2/Table 3 (meta.id.assoc)
  Vb.max km/s [-30000/-5074] Maximum (blue-edge) velocity of BAL trough (spect.line.width)
  Vb.min km/s [-27395/-3000] Minimum (red-edge) velocity of BAL trough (spect.line.width)
  Vv.max km/s [-29977/-3321] Maximum (blue-edge) velocity of variable region (spect.line.width)
  Vv.min km/s [-29531/-3018] Minimum (red-edge) velocity of variable region (spect.line.width)
  dVr km/s [273/7861] Width of variable region (spect.line.width;obs.field)
  Vnrt   [-1.5/1.2] Normalized relative velocity (phys.veloc;arith.diff)

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