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J/A+A/311/384
  ROSAT observations of BL Lacertae objects (lamer+ 1996)
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1996A&A...311..384L
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1.J/A+A/311/384/table2List of PSPC observations (73 rows)
2.J/A+A/311/384/table3X-ray and broad band spectra (74 rows)

Simple ConstraintList Of Constraints
 
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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)
   (ALL)Name (char) Object name (meta.id;meta.main)
  (1)ROR  ROSAT observation request (ROR) number (meta.id;obs)
  (1)n_ROR (char) [-] '-' when two ROR numbers (meta.note)
  (1)ROR2   Second ROR number (meta.id)
  (1)Date (char) Completed date (time.epoch)
  (1)Exp s Exposition time (time.duration;obs.exposure)
  (1)Counts  Net counts (phot.count;em.X-ray)
  (1)e_Counts   rms uncertainty on Counts (stat.error)
  (2)NH,gal 10+20cm-2Galactic hydrogen column density (phys.columnDensity)
  (2)n_NH,gal (char) Note on NH,gal (Note 1)   (meta.note)

ALL cols		    
 (i)indexed column
  (2)NH,fit 10+20cm-2 Fitted hydrogen column density (phys.columnDensity)
  (2)e_NH,fit 10+20cm-2 rms uncertainty on NH,fit (stat.error)
  (2)F1keV uJy Flux at 1 keV (phot.flux;em.X-ray)
  (2)alpha  Spectral index between .1kev and 2.4keV (spect.index)
  (2)e_alpha  rms uncertainty on alpha (stat.error)
  (2)alpha_rx_  X-ray spectral index (spect.index)
  (2)delta_IC_   Inverse Compton beaming factor (stat.fit.param)

ALL cols		    
 (i)indexed column
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