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
Similar Catalogs
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. ((unassigned);meta.version;arith.diff;phys.veloc)
  (1)Nm  (n)Number of measurements for this QSO (link to Table 3) ((unassigned);meta.version;arith.diff;src.var)
   (ALL)SDSS (char) (i) SDSS identifier (JHHMMSS.ss+DDMMSS.s) (time.scale;(unassigned);arith.grad;spect.line.veloc;arith)
  (1)z   [0.4/2.3] Spectroscopic redshift ((unassigned);(unassigned);(unassigned);pos.parallax;meta.main)
  (1)Ne   [2/47] Number of epochs ((unassigned);phys.veloc.dispersion;arith;src.var)
  (1)RL  (n) [1/897] Radio loudness from Shen+, 2011, J/ApJS/194/45 ((unassigned);meta.version;arith.diff;meta.abstract;instr.offset)
  (1)iMag mag [-28.4/-22.9] Absolute i band magnitude from Schneider+ 2010, VII/260 ((unassigned);(unassigned);(unassigned);(unassigned))
  (1)S11 (char) Display data from Shen+, 2011, J/ApJS/194/45 ((unassigned);meta.version;arith.diff;pos.geocentric)
  (1)Sloan (char) Display the online SDSS data for the nearest object ((unassigned);(unassigned);(unassigned);pos.geocentric)
  (1)Simbad (char) ask the Simbad data-base about this object ((unassigned);(unassigned);(unassigned);pos.geocentric)
  (1)NED (char) ask the NED data-base about this object ((unassigned);(unassigned);(unassigned);pos.geocentric)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)_RA deg Positions from SDSS names (right ascension part) ((unassigned);meta.version;arith.diff;(unassigned);arith)
  (1)_DE deg Positions from SDSS names (declination part) ((unassigned);(unassigned);(unassigned);(unassigned);arith)
  (2)RAJ2000 deg [15.9/360] Right Ascension (J2000) ((unassigned);(unassigned);(unassigned);(unassigned);arith)
  (2)DEJ2000 deg [-11/65.1] Declination (J2000) ((unassigned);meta.version;arith.diff;(unassigned);arith)
  (2)MJD1 d [51614/57460] First Modified Julian Date ((unassigned);meta.version;arith.diff;pos.centroid;meta.main)
  (2)MJD2 d [51936/58230] Second Modified Julian Date ((unassigned);meta.version;arith.diff;pos.centroid;meta.main)
  (2)chi2   [0.4/60.4] Model {chi}2 ((unassigned);(unassigned);(unassigned);time.obs.end;src.orbital.meanAnomaly)
  (2)Nv   [0/9] Number of variable regions in the trough pair ((unassigned);(unassigned);(unassigned);spect.line.veloc;time.lifetime)
  (2)Vmax km/s [-25956/-1390] Maximum limits of trough velocity (phot.flux.sb;stat.covariance;arith.factor;(unassigned);pos.phaseAng;meta.main)
  (2)Vmin km/s [-24111/1269] Minimum limits of trough velocity (time.expo;(unassigned);arith.factor;(unassigned);arith.ratio)
  (2)d1   [-0.2/0.9] BAL depth at MJD1 ((unassigned);meta.version;arith.diff;phys.atmol.sWeight.nuclear;instr.offset)
  (2)d2   [-0.05/0.9] BAL depth at MJD2 ((unassigned);(unassigned);(unassigned);phys.atmol.sWeight.nuclear;instr.offset)
  (2)EW1 0.1nm [0.5/110.4] First equivalent width; in Angstroms ((unassigned);em.line;arith.grad;phys.at.moment.magnetic;meta.main)
  (2)e_EW1 0.1nm [0.04/4.3] Uncertainty in EW1 (stat.fit.goodness;(unassigned);(unassigned);time.age;meta.main)
  (2)EW2 0.1nm [0.1/112.3] Second equivalent width; in Angstroms ((unassigned);(unassigned);(unassigned);phys.at.moment.magnetic;meta.main)
  (2)e_EW2 0.1nm [0.03/4.3] Uncertainty in EW2 ((unassigned);(unassigned);(unassigned);time.age;meta.main)

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