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J/A+A/470/787
  High energy peaked BL Lacs optical spectros. (Piranomonte+, 2007)
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2007A&A...470..787P
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1.J/A+A/470/787/table4*Objects properties (Note) (68 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) IAU name (SHBL JHHMMSS.s+DDMMSS) (meta.id;meta.main)
  n_Name (char) [d] d: Sources already classified in literature as BL Lacs (see Paper II, Cat. J/A+A/434/385) (meta.note)
  FX mW/m2 X-ray flux in 0.1-2.4keV band (phot.flux;em.X-ray)
  F20cm mJy Radio flux at 20cm (1.4GHz) (phot.flux.density;em.radio.750-1500MHz)
  Vmag mag Optical apparent V magnitude (from APM and COSMOS) (phot.mag;em.opt)
  z  (n) Redshift (src.redshift)
  u_z (char) [?] Uncertain redshifts flag (meta.code.error;src.redshift)
  alpha  (n) alphaOIIOIII index (spect.index)
  u_alpha (char) [?] Impossible measure flag, [OII]3727 located in noise (meta.code.error;pos.eq.ra)
  CaH+K  (n) CaH+K break (Note 1)   (spect.index)
  u_CaH+K (char) [?] CaH+K break located in noise (meta.code.error)
  e_CaH+K  (n) CaH+K break (stat.error)
  S/N  Signal-to-noise ration (stat.snr)
  l_EW (char) Limit flag on EW (meta.code.error;spect.line.eqWidth)
  EW 0.1nm 2σ upper limit of observed equivalent widths (spect.line.eqWidth;stat.max)

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