VizieR

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VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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J/ApJS/242/28
  MgII-BAL quasar variability in SDSS spectra (Yi+, 2019)
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2019ApJS..242...28Y
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Post annotation 		img(gal)
1.J/ApJS/242/28/table2(c)Properties of MgII-BAL QSOs in the sample (134 rows)
2.J/ApJS/242/28/table3(c)MgII-BAL trough identifications and quantitative measurements (484 rows)
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Simple ConstraintList Of Constraints
 
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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)
  (1)Nm  (n)Number of measurements for this QSO (link to Table 3) (meta.number)
   (ALL)SDSS (char) (i) SDSS identifier (JHHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
  (1)z   [0.4/2.3] Spectroscopic redshift (src.redshift)
  (1)Ne   [2/47] Number of epochs (meta.number)
  (1)RL  (n) [1/897] Radio loudness from Shen+, 2011, J/ApJS/194/45 (phot.flux;arith.ratio)
  (1)iMag mag [-28.4/-22.9] Absolute i band magnitude from Schneider+ 2010, VII/260 (phys.magAbs)
  (1)S11 (char) Display data from Shen+, 2011, J/ApJS/194/45 (meta.ref.url)
  (1)Sloan (char) Display the online SDSS data for the nearest object (meta.ref.url)
  (1)Simbad (char) ask the Simbad data-base about this object (meta.ref.url)
  (1)NED (char) ask the NED data-base about this object (meta.ref.url)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)_RA deg (i) Positions from SDSS names (right ascension part) (pos.eq.ra;meta.main)
  (1)_DE deg (i) Positions from SDSS names (declination part) (pos.eq.dec;meta.main)
  (2)RAJ2000 deg (i) [15.9/360] Right Ascension (J2000) (pos.eq.ra;meta.main)
  (2)DEJ2000 deg (i) [-11/65.1] Declination (J2000) (pos.eq.dec;meta.main)
  (2)MJD1 d [51614/57460] First Modified Julian Date (time.epoch)
  (2)MJD2 d [51936/58230] Second Modified Julian Date (time.epoch)
  (2)chi2   [0.4/60.4] Model χ2 (stat.param;meta.modelled)
  (2)Nv   [0/9] Number of variable regions in the trough pair (meta.id;obs.field)
  (2)Vmax km/s [-25956/-1390] Maximum limits of trough velocity (spect.dopplerVeloc;stat.max)
  (2)Vmin km/s [-24111/1269] Minimum limits of trough velocity (spect.dopplerVeloc;stat.min)
  (2)d1   [-0.2/0.9] BAL depth at MJD1 (phot.flux.density;arith.ratio)
  (2)d2   [-0.05/0.9] BAL depth at MJD2 (phot.flux.density;arith.ratio)
  (2)EW1 0.1nm [0.5/110.4] First equivalent width; in Angstroms (spect.line.eqWidth)
  (2)e_EW1 0.1nm [0.04/4.3] Uncertainty in EW1 (stat.error)
  (2)EW2 0.1nm [0.1/112.3] Second equivalent width; in Angstroms (spect.line.eqWidth)
  (2)e_EW2 0.1nm [0.03/4.3] Uncertainty in EW2 (stat.error)

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