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J/AJ/142/108
 Radio variability of compact, flat-spectrum AGNs (Koay+, 2011)
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1.J/AJ/142/108/table2List of sources and their properties (128 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)
  Source (char) IAU name (JHHMM+DDMM), MASIV JHHMM+DDMM in Simbad (meta.id;meta.main)
  Halpha  Hα Intensities from WHAM (Wisconsin Hα Mapper database; see Haffner et al. 2003, Cat. II/249). Expressed in Rayleigh, i.e. 1010ph/m2/s. (phot.flux;em.line.Halpha)
  S8.4 Jy Mean flux density at 8.4GHz (phot.flux.density;em.radio.6-12GHz)
  S4.9 Jy Mean flux density at 4.9GHz (phot.flux.density;em.radio.3-6GHz)
  alpha  Source spectral index α (spect.index)
  l_tau8.4 (char) Limit flag on tau8.4 (meta.code.error)
  tau8.4 s (n) Estimated characteristic timescale of source variability at 8.4GHz (src.var)
  e_tau8.4 s (n) rms uncertainty on tau8.4 (stat.error)
  l_tau4.9 (char) Limit flag on tau4.9 (meta.code.error)
  tau4.9 s (n) Estimated characteristic timescale of source variability at 4.9GHz (src.var)

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(n) indicates a possible blank or NULL column  
  e_tau4.9 s (n) rms uncertainty on tau4.9 (stat.error)
  m8.4 % Raw modulation index at 8.4GHz with no error subtraction (src.var.index)
  m4.9 % Raw modulation index at 4.9GHz with no error subtraction (src.var.index)
  D(4d)8.4  4 day structure function at 8.4GHz with Dnoise subtracted (src.var.index)
  e_D(4d)8.4  rms uncertainty on D(4d)8.4 (stat.error)
  D(4d)4.9  4 day structure function at 4.9GHz with Dnoise subtracted (src.var.index)
  e_D(4d)4.9  rms uncertainty on D(4d)4.9 (stat.error)
  Simbad  ask the Simbad data-base about this object (meta.ref)
  _RA deg Positions from Lovell et al. (2008, Cat. J/ApJ/689/108) (right ascension part) (pos.eq.ra;meta.main)
  _DE deg Positions from Lovell et al. (2008, Cat. J/ApJ/689/108) (declination part) (pos.eq.dec;meta.main)

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