VizieR

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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/ApJS/221/32
  Narrow MgII absorption lines from SDSS-DR9Q (Chen+, 2015)
ReadMe+ftp
2015ApJS..221...32C
Similar Catalogs
spectrum
Post annotation 		img(gal)
1.J/ApJS/221/32/table1Catalog of Mg II absorption systems (18598 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. ((unassigned))
  SDSS (char) SDSS-DR9Q identifier (VII/269; HHMMSS.ss+DDMMSS.s; J2000) ((unassigned);(unassigned))
  Plate  SDSS plate identifier ((unassigned);(unassigned))
  MJD d [55176/55752] Modified Julian Date of the observation ((unassigned))
  Fiber  SDSS fiber identifier ((unassigned))
  zem   [0.35/5.4] Redshift derived from emission lines ((unassigned))
  zabs   [0.29/2.7] Redshift derived from absorption lines ((unassigned))
  EW2796 0.1nm [0.2/8.2] Rest equivalent width of MgII{lambda}2796 (Å) ((unassigned))
  s2796   [2/71] EW2796 divided by its 1{sigma} error; significance of MgII{lambda}2796 detection ((unassigned))
  EW2803 0.1nm [0.2/7.1] Rest equivalent width of MgII{lambda}2803 (Å) ((unassigned))
  s2803   [2/65] EW2803 divided by its 1{sigma} error; significance of MgII{lambda}2803 detection ((unassigned))
  SNR2796   [1.9/63] Signal-to-noise ratio of MgII{lambda}2796 line ((unassigned))
  SNR2803   [1.9/60] Signal-to-noise ratio of MgII{lambda}2803 line ((unassigned))
  beta   [-0.02/0.74] Relative velocity, {beta} (Note 1)   ((unassigned);(unassigned))
  Sp  Interactive spectrum from SDSS ((unassigned))
spectrum
  Simbad  ask the Simbad data-base about this object ((unassigned))
  NED  ask the NED data-base about this object ((unassigned))
  _RA deg Position from SDSS name (right ascension part) ((unassigned);(unassigned))
  _DE deg Position from SDSS name (declination part) ((unassigned);(unassigned))

ALL cols		    
 (i)indexed column
Adapt form
 Display your selection only Reset to default columns
usage  Display UCD1+    UCD1  

The following problems were encountered in this VizieR run:
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If you can't find a solution, report to CDS and insert into your message the following details:

.errorfile=/tmp/VR225634.err (2026-02-03T12:23:02)
-3
-source=J/ApJS/221/32
-ref=VIZ6981e8a637162
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