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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/923/223
  VLT/X-SHOOTER & Keck/ESI spectra of z∼5 QSOs (Zhu+, 2021)
ReadMe+ftp
2021ApJ...923..223Z
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJ/923/223/table1QSO spectra used in this work (55 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)
  Seq   [1/55] Runing sequence number (meta.id)
  QSO (char) (i) QSO designation (meta.id;meta.main)
  zem   [5.5/6.6] QSO redshift (src.redshift)
  r_zem (char) zem reference (Note 1)   (meta.ref;pos.frame)
  Source (char) Source of the spectrum used for dark gap statistics (Note 2)   (meta.note)
  Inst (char) Instrument ("X-Shooter" or "ESI") (meta.id;instr)
  S/N   [21/224] Continuum signal-to-noise ratio (Note 3)   (stat.snr;spect.continuum)
  B19  (n)Display data from Becker+ 2019, J/ApJ/883/163 (meta.ref.url)
  Ndg  (n)Number of dark gaps for this QSO (link to Table 2) (meta.number)
  SimbadName (char) (n)Designation understandable by the Simbad data-base (meta.id)
  _RA deg (i) Right Ascension (J2000) from SIMBAD (not part of the original data) (pos.eq.ra;meta.main)
  _DE deg (i) Declination (J2000) from SIMBAD (not part of the original data) (pos.eq.dec;meta.main)

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