VizieR

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

VizieR

  
J/MNRAS/400/1493
  QSOs Lyman alpha emission line spectra (Kramer+, 2009)
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2009MNRAS.400.1493K
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Post annotation 		img(gal)
1.J/MNRAS/400/1493/sp_fitBest-fit spectral parameters from fits to the full- (table3) or red side- (table4) of the Lyman-α line (172 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)
  Ly (char) full- or Red-side of the Lyman-α line (meta.note)
  Name (char) Name from NED (Note G1)   (meta.id;meta.main)
  Inst (char) HST Instrument (instr)
  Grat (char) Grating (meta.note)
  Ap (char) Aperture used to take the spectrum (phys.angSize;instr.fov)
  sigLa0 0.1nm Width of narrow Lyman-alpha component (Note 1)   (spect.line.width)
  aLa0  Amplitude of La0, normalized by the continuum flux ap (phot.flux;arith.ratio)
  vLa0 km/s Shift of La0 component center from the nominal wavelength (Note 2)   (stat.fit.param)
  sigLa1 0.1nm Width of broad Lyman-alpha component (Note 1)   (spect.line.width)
  aLa1  Amplitude of La1, normalized by the continuum flux ap (phot.flux;arith.ratio)

ALL cols		    
 (i)indexed column
  vLa1 km/s Shift of La1 component center from the nominal wavelength (Note 2)   (stat.fit.param)
  sigNV 0.1nm Width of NV line (Note 1)   (spect.line.width)
  aNV  Amplitude of NV line, normalized by the continuum flux ap (phot.flux;arith.ratio)
  vNV km/s Shift of NV line center from the nominal wavelength (Note 2)   (stat.fit.param)
  p  Continuum power law index (spect.index)
  ap 10-17W/m2/nmContinuum flux at the nominal Lyman-alpha central wavelength (10–15erg/cm2/s/Å) (phot.flux.density;arith.ratio)
  x2/nup  Reduced χ2 for the line-profile fit (meta.note)
  x2/nuc  Reduced χ2 for the continuum (meta.note)
  nup  Number of degrees of freedom for line-profile fit (meta.number)
  nuc  Number of degrees of freedom for continuum (meta.number)

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 (i)indexed column
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