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J/A+A/391/809
  HII regions in NGC 5457 and NGC 4395 (Cedres+, 2002)
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1.J/A+A/391/809/table5NGC 5457 R23 parameter, oxygen abundance and ionization hardness parameter (338 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)
  Region  Region identification number (meta.id;meta.main)
  All  display all paramters for this region in NGC 5457 (meta.ref)
  R23  (n) R23 parameter (Note 2)   (phot.flux;arith.ratio)
  n_R23 (char) [N] N:NaN (meta.note)
  e_R23  (n) Error in R23 parameter (stat.error)
  12+log(O/H)  (n) Oxygen abundance (phys.abund)
  n_12+log(O/H) (char) [N] N:NaN (meta.note)
  e_12+log(O/H)  (n) Error in oxygen abundance (Note 1)   (stat.error)
  eta  (n) Ionization hardness parameter (table5.dat only) (Note 3)   (phot.flux;arith.ratio)
  n_eta (char) [N] N:NaN (meta.note)
  e_eta  (n) Error in ionization hardness parameter (stat.error)

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