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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

  CIV NAL systems from SDSS-DR14 quasar spectra (Chen+, 2018)
Post annotation
1.J/ApJS/239/23/qsos(c)List of quasars; table added by CDS (13736 rows)
2.J/ApJS/239/23/table1Catalog of CIV Narrow Absorption Line systems[spectrum] (49986 rows)

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. (meta.record)
   (ALL)SDSS (char) (i) SDSS-DR14Q (Paris+, 2018A&A...613A..51P) designation (; J2000) (Note G1)   (;meta.main)
   (ALL)zem   [1.37/5.1] Emission-line redshift of the quasar (src.redshift)
  (1)DR12Q  (n)Display data from the SDSS-DR12 quasar catalog (Paris+, 2017, VII/279) (meta.ref.url)
  (1)CIV  (n)Display the CIV NAL sytem data for this quasar (link to Table 1) (meta.number)
  (1)Simbad (char) ask the Simbad data-base about this object (meta.ref.url)
  (1)NED (char) ask the NED data-base about this object (meta.ref.url)
  (1)_RA deg (i) Positions from SDSS-DR14Q names (right ascension part) (pos.eq.ra;meta.main)
  (1)_DE deg (i) Positions from SDSS-DR14Q names (declination part) (pos.eq.dec;meta.main)
  (2)Pair   [1/24993] Identification number of a NAL pair (
  (2)Plate   [266/10000] Spectroscopic Plate number (;instr.plate)

ALL cols
(n) indicates a possible blank or NULL column(i)indexed column
  (2)MJD   [51609/57520] Spectroscopic MJD (time.epoch)
  (2)Fiber   [1/1000] Spectroscopic Fiber number (
  (2)zabs   [1.32/4.7] Redshift of absorption line system (src.redshift)
  (2)rew96 0.1nm [0.03/3.9] Rest-frame equivalent width CIVλ1548Å (Note 1)   (spect.line.eqWidth)
  (2)e_rew96 0.1nm [0/1.2] Uncertainty in rew96 (Note 1)   (stat.error)
  (2)rew03 0.1nm [0.03/3.4] Rest-frame equivalent width CIVλ1551Å (Note 1)   (spect.line.eqWidth)
  (2)e_rew03 0.1nm [0/0.9] Uncertainty in rew03 (Note 1)   (stat.error)
  (2)F1350 10-19W/m2/nm [1.5/683] The 1350Å continuum flux (Note 2)   (phot.flux)
  (2)e_F1350 10-19W/m2/nm [0.1/13] Uncertainty in F1350 (Note 2)   (stat.error)
  (2)Vrabs km/s [-44077/29977] Offset velocity of the CIV NAL system (Note 3)   (phys.veloc;arith.diff)
  (2)ID   [1/21239] Identification number of the CIV NAL system (meta.number)
  (2)NAL  (n) [-2/2] NAL symbol (Note 4)   (meta.code)
  (2)SL  (n) [0/19.3] Significance level (SL) of the variation (Note 5)   (
  (2)Sp (char) Interactive spectrum from SDSS-DR14 (meta.ref.url)

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