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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/720/259
  CO column densities in dark clouds (Whittet+, 2010)
ReadMe+ftp
2010ApJ...720..259W
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJ/720/259/table1Extinction values and column densities for program stars (302 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   [1/302] Running number (meta.id;meta.main)
  ID (char) Source identification (Note 1)   (meta.id)
  A(V) mag Visual extinction (phys.absorption;em.opt.V)
  N(CO)gas 10+17cm-2Gas phase CO column density (Note 2)   (phys.columnDensity)
  N(CO)ice 10+17cm-2(n) Solid phase CO column density (Note 3)   (phys.columnDensity)
  N(CO2)ice 10+17cm-2(n) Solid phase CO2 column density (Note 3)   (phys.columnDensity)
  2M  Display the 2MASS data within 1.5" (Cutri et al. 2003, Cat. II/246) (meta.ref.url)
  SimbadName (char) Designation understandable by the Simbad data-base (meta.id)
  _RA deg (i) Positions from 2MASS (Cat. II/246) or SIMBAD (right ascension part) (pos.eq.ra;meta.main)
  _DE deg (i) Positions from 2MASS (Cat. II/246) or SIMBAD (declination part) (pos.eq.dec;meta.main)

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