VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .
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VizieR

  
J/MNRAS/498/883
  Neutral hydrogen evolution over the past 11Gyr (Grasha+, 2020)
ReadMe+ftp
2020MNRAS.498..883G
Similar Catalogs
Post annotation 		img(gal)
1.J/MNRAS/498/883/table2Sources with HI 21cm absorption (29 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)
  Name (char) Source name (meta.id;meta.main)
  f_Name (char) [a] Flag on Name (Note 1)   (meta.code)
  Comp (char) Numbered Gaussian component (meta.code.multip)
  nu MHz Central frequency of each component (em.freq)
  e_nu MHz Error on nu (stat.error)
  z  Redshift of each absorption feature (src.redshift)
  e_z  Error on z (stat.error;src.redshift)
  Fcont Jy Continuum flux density (phot.flux.density;em.radio)
  e_Fcont Jy Error on Fcont (stat.error)
  FWHM kHz Observed width of the line (spect.line.width)

ALL cols		    
 (i)indexed column
  e_FWHM kHz Error on FWHM (stat.error;phys.angSize)
  FWHMrf km/s Rest-frame line width (spect.line.width)
  e_FWHMrf km/s Error on FWHMrf (stat.error)
  Depth mJy Depth of the absorption line (phys.absorption.opticalDepth;spect.line)
  e_Depth mJy Error on Depth (stat.error;phys.absorption.opticalDepth)
  tau 10-2 Peak optical depth (phys.absorption.opticalDepth;stat.max)
  e_tau 10-2 Error on tau (stat.error)
  NHI 10+18/cm2/KDerived HI column density NHI/ (Ts/f) (phys.columnDensity)
  e_NHI 10+18/cm2/KError on NHI (stat.error)
  NHIlit 10+18/cm2/K(n) Measured HI column density NHI/(Ts/f) from previous 21 cm observations (phys.columnDensity)
  e_NHIlit 10+18/cm2/K(n) Error on NHIlit (stat.error)
  r_NHIlit (char) Reference for NHIlit (Note 2)   (meta.ref;pos.frame)
  Ts/f K (n) Measured Ts/f values constrained from Lyα and VLA observations from Kanekar et al. (2014MNRAS.438.2131K) (phys.temperature)

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