VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .
CDS

VizieR

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

  
J/ApJ/748/131
  MgII absorbers in SDSS-DR7 quasar catalog (Shen+, 2012)
ReadMe+ftp
2012ApJ...748..131S
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJ/748/131/table1The sample of associated absorption line systems (AALs), identified from SDSS-DR7 QSOs (1937 rows)

Simple ConstraintList Of Constraints
 
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)
  SDSS (char) SDSS-DR7 designation (HHMMSS.ss+DDMMSS.s; J2000) (meta.id;meta.main)
  Plate  SDSS-DR7 Plate number (meta.id;instr.plate)
  Fib  SDSS-DR7 Fiber number (meta.id)
  MJD  Modified Julian Date (time.epoch)
  z   [0.3/2.3] Catalogued SDSS-DR7 redshift (src.redshift)
  W2796 0.1nm [0.1/6.9] Restframe equivalent width of MgII(2796) (spect.line.eqWidth)
  e_W2796 0.1nm Restframe equivalent width error of MgII(2796) (stat.error)
  W2803 0.1nm [0.1/6.7] Restframe equivalent width of MgII(2803) (spect.line.eqWidth)
  e_W2803 0.1nm Restframe equivalent width error of MgII(2803) (stat.error)
  Voff1 km/s [-2969/2999] Absorber velocity offset based on fiducial systemic redshift (Note 1)   (phys.veloc;arith.diff)
  Voff2 km/s [-4171/4407] Absorber velocity offset based on SDSS systemic redshift (Note 1)   (phys.veloc;arith.diff)
  Voff3 km/s [-3385/4709] Absorber velocity offset based on H&W systemic redshift (Note 1)   (phys.veloc;arith.diff)
  DR7  Display the SDSS-DR7 quasar catalog (Cat. VII/260) for this object (meta.ref.url)
  Sloan  Display the SDSS online data for this quasar (meta.ref.url)
  Simbad  ask the Simbad data-base about this object (meta.ref)
  NED  ask the NED data-base about this object (meta.ref)
  _RA deg (i) Positions from SDSS names (right ascension part) (pos.eq.ra;meta.main)
  _DE deg (i) Positions from SDSS names (declination part) (pos.eq.dec;meta.main)

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