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/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/table1Catalog of quasar spectra searched for MgII absorption systems[spectrum] (198229 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)
  EW (char) Display the MgII absorption system catalog (table 2) (meta.ref.url)
  SDSS (char) (i) SDSS identifier (JHHMMSS.ss+DDMMSS.s) (Note G1)   (meta.id;meta.main)
  Plate  SDSS plate number (meta.id;instr.plate)
  MJD d [51608/56837] Modified Julian Date of the observation (time.epoch)
  Fiber  SDSS fiber number (meta.id)
  zem   [0.3/2.8] Spectroscopic emission line derived redshift (src.redshift)
  logL [10-7W] [43/47.5] log monochromatic flux at 3000Å; in units of erg/s. (phys.luminosity)
  S/N   [3/87] Median Signal-to-Noise per pixel (stat.snr)
  DR7Q  (n)Display the SDSS -DR7 quasar catalog (VII/260) within 1" if any (meta.ref.url)
  DR12Q  (n)Display the SDSS -DR12 quasar catalog (VII/279) within 0.5" (meta.ref.url)
  DR7+DR12  Display data from the SDSS -DR7 (II/294) and -DR12 (V/147) photometric catalogs within 0.5" (meta.ref.url)
  Sp  Interactive spectrum from SDSS-DR12 (meta.ref.url)
spectrum
  Simbad  ask the Simbad data-base about this object (meta.ref.url)
  NED  ask the NED data-base about this object (meta.ref.url)
  _RA deg (i) Position from SDSS name (right ascension part) (pos.eq.ra;meta.main)
  _DE deg (i) Position from SDSS name (declination part) (pos.eq.dec;meta.main)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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usage  Display UCD1+    UCD1  
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