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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/other/MmSAI/80.833
  Variations of the fine-structure constant (Murphy+, 2009)
Post annotation
img(gal)
1.J/other/MmSAI/80.833/table1Values of Δ(α)/α and corrections for possible intra-order distortions of the wavelength scale (143 rows)

 
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)
  Name (char) B1950 QSO name (HHMM-DDM) (meta.id;meta.main)
  zem  (n) Emission redshift (src.redshift)
  zabs  Absorption redshift (src.redshift)
  Trans (char) Transitions used to determine da/a in each absorber (Note 1)   (instr.setup)
  da/a  Δα/α value (relative variation of the fine structure constant) (stat.param)
  e_da/a  Formal 1-sigma statistical error on da/a (stat.error)
  d(da/a)  Systematic error on da/a (Note 2)   (stat.error)
  da/aC  Estimate of the da/a correction, intra-order distortions, to be added to da/a (arith.factor)
  d(da/aC)  Systematic error term on da/acorr (Note 3)   (stat.error)
  Sam (char) Observational sub-samples employed (Note 4)   (meta.id)
  SimbadName (char) Designation understandable by the Simbad data-base (meta.id)
  NED  ask the NED data-base about this object
  _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)

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