VizieR

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VizieR

  
J/ApJS/247/16
  Extreme high-frequency-peaked BL Lac objects (Acciari+, 2020)
ReadMe+ftp
2020ApJS..247...16A
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spectrum
Post annotation 		img(gal)
1.J/ApJS/247/16/sedsBroadband SED and modeled spectra (data behind Figures 3, 4 and 10) (286 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)
  Fig (char) Figure number in the paper –in Figure 4: the four sources with no MAGIC detection or hints (but Fermi-LAT detection); in Figure 10: data for RBS 0921 (meta.bib.fig)
  Name (char) Source identifier (meta.id;meta.main)
  Freq Hz [4.86e+14/9.13e+26] Frequency (em.freq)
  e_Freq Hz (n) Lower 1σ uncertainty limit in Freq (stat.error)
  E_Freq Hz (n) Upper 1σ uncertainty limit in Freq (stat.error;stat.max)
  l_nufnu (char) Upper limit flag on nufnu (meta.code.error)
  nufnu mW/m2 [3.14e-13/2.66e-11] Differential photon flux at Freq; in units of erg/s/cm2 (phot.flux.density;em.radio)
  e_nufnu mW/m2 (n) Lower 1σ uncertainty limit in nufnu (stat.error)
  E_nufnu mW/m2 (n) Upper 1σ uncertainty limit in nufnu (stat.error;stat.max)
  Start d (n) [54682/57784] Modified Julian start date of observation (time.start;obs)
  End d (n) [55648/58319] Modified Julian end date of observation (time.end;obs)
  Texp s (n) [1506/423000] Exposure time (time.duration;obs.exposure)
  Comm (char) Comment(s) (meta.note)

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