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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/MNRAS/400/1493
  QSOs Lyman alpha emission line spectra (Kramer+, 2009)
Post annotation
img(gal)
1.J/MNRAS/400/1493/table1(c)HST (FOS and GHRS) quasar Lyman-α emission line spectra (120 rows)
2.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)

 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  (1)Fit (char) F indicates that best-fit spectral parameters are computed (meta.ref.url)
   (ALL)Name (char) (i) Name from NED (Note G1)   (meta.id;meta.main)
  (1)z  Redshift from NED (src.redshift)
   (ALL)Inst (char) HST instrument (instr)
   (ALL)Ap (char) Aperture (phys.angSize;instr.fov)
   (ALL)Grat (char) Grating (meta.note)
  (1)S/N  Mean signal-to-noise ratio (stat.snr;stat.mean)
  (1)Com (char) Comments on spectra and fits (meta.note;meta.fits)
  (1)SimbadName (char) Designation understandable by the Simbad data-base (meta.id)
  (1)NED (char) ask the NED data-base about this object

ALL cols
    
 (i)indexed column
  (1)_RA deg (i) Position, from NED database (right ascension part) (pos.eq.ra;meta.main)
  (1)_DE deg (i) Position, from NED database (declination part) (pos.eq.dec;meta.main)
  (2)Ly (char) full- or Red-side of the Lyman-α line (meta.note)
  (2)sigLa0 0.1nm Width of narrow Lyman-alpha component (Note 1)   (spect.line.width)
  (2)aLa0  Amplitude of La0, normalized by the continuum flux ap (phot.flux;arith.ratio)
  (2)vLa0 km/s Shift of La0 component center from the nominal wavelength (Note 2)   (stat.fit.param)
  (2)sigLa1 0.1nm Width of broad Lyman-alpha component (Note 1)   (spect.line.width)
  (2)aLa1  Amplitude of La1, normalized by the continuum flux ap (phot.flux;arith.ratio)
  (2)vLa1 km/s Shift of La1 component center from the nominal wavelength (Note 2)   (stat.fit.param)
  (2)sigNV 0.1nm Width of NV line (Note 1)   (spect.line.width)
  (2)aNV  Amplitude of NV line, normalized by the continuum flux ap (phot.flux;arith.ratio)
  (2)vNV km/s Shift of NV line center from the nominal wavelength (Note 2)   (stat.fit.param)
  (2)p  Continuum power law index (spect.index)

ALL cols
    
 (i)indexed column
  (2)ap 10-17W/m2/nmContinuum flux at the nominal Lyman-alpha central wavelength (10–15erg/cm2/s/Å) (phot.flux.density;arith.ratio)
  (2)x2/nup  Reduced χ2 for the line-profile fit (meta.note)
  (2)x2/nuc  Reduced χ2 for the continuum (meta.note)
  (2)nup  Number of degrees of freedom for line-profile fit (meta.number)
  (2)nuc  Number of degrees of freedom for continuum (meta.number)

ALL cols
    
 (i)indexed column
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