VizieR

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

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/235/11
  Absorption features in SDSS. I. MgII abs. doublets (Chen+, 2018)
ReadMe+ftp
2018ApJS..235...11C
Similar Catalogs
spectrum
Post annotation 		img(gal)
1.J/ApJS/235/11/table1(c)Catalog of quasar spectra searched for MgII absorption systems[spectrum] (198229 rows)
2.J/ApJS/235/11/table2Catalog of MgII absorption systems (17316 rows)

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. ((unassigned);phys.veloc.orbital;arith.diff;phys.veloc)
  (1)EW (char) Display the MgII absorption system catalog (table 2) ((unassigned);phys.veloc.orbital;arith.diff;pos.geocentric)
   (ALL)SDSS (char) (i) SDSS identifier (JHHMMSS.ss+DDMMSS.s) (Note G1)   ((unassigned);(unassigned);(unassigned);spect.line.veloc;arith)
   (ALL)Plate  SDSS plate number ((unassigned);(unassigned);(unassigned);spect.line.veloc;phys.atmol.qn.F)
   (ALL)MJD d [51608/56837] Modified Julian Date of the observation ((unassigned);(unassigned);(unassigned);pos.centroid;meta.main)
   (ALL)Fiber  SDSS fiber number ((unassigned);(unassigned);(unassigned);spect.line.veloc)
   (ALL)zem   [0.3/2.8] Spectroscopic emission line derived redshift ((unassigned);(unassigned);(unassigned);pos.parallax;meta.main)
  (1)logL [10-7W] [43/47.5] log monochromatic flux at 3000Å; in units of erg/s. ((unassigned);phys.veloc.orbital;arith.diff;(unassigned))
  (1)S/N   [3/87] Median Signal-to-Noise per pixel ((unassigned);phys.veloc.orbital;arith.diff;meta.abstract;meta.main)
  (1)DR7Q  (n)Display the SDSS -DR7 quasar catalog (VII/260) within 1" if any ((unassigned);phys.veloc.orbital;arith.diff;pos.geocentric)
  (1)DR12Q  (n)Display the SDSS -DR12 quasar catalog (VII/279) within 0.5" ((unassigned);(unassigned);(unassigned);pos.geocentric)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)DR7+DR12 (char) Display data from the SDSS -DR7 (II/294) and -DR12 (V/147) photometric catalogs within 0.5" ((unassigned);(unassigned);(unassigned);pos.geocentric)
  (1)Sp (char) Interactive spectrum from SDSS-DR12 ((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)
  (1)_RA deg (i) Position from SDSS name (right ascension part) ((unassigned);phys.veloc.orbital;arith.diff;(unassigned);arith)
  (1)_DE deg (i) Position from SDSS name (declination part) ((unassigned);(unassigned);(unassigned);(unassigned);arith)
  (2)zabs   [0.3/2.6] Spectroscopic absorption line derived redshift ((unassigned);(unassigned);(unassigned);pos.parallax;meta.main)
  (2)W2796 0.1nm [0.2/8.3] Equivalent width of MgII 2796Å line (Note 1)   ((unassigned);phys.veloc.orbital;arith.diff;phys.at.moment.magnetic;meta.main)
  (2)e_W2796 0.1nm [0.02/1.7] Uncertainty in W2796 (Note 1)   ((unassigned);(unassigned);(unassigned);time.age;meta.main)
  (2)W2803 0.1nm [0.2/7.5] Equivalent width of MgII 2803Å line (Note 1)   ((unassigned);(unassigned);(unassigned);phys.at.moment.magnetic;meta.main)
  (2)e_W2803 0.1nm [0.02/1.4] Uncertainty in W2803 (Note 1)   ((unassigned);phys.veloc.orbital;arith.diff;time.age;meta.main)
  (2)RV km/s [-10447/11652] Radial velocity ((unassigned);(unassigned);(unassigned);spect.index;arith.diff;meta.main)

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