VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

VizieR

  
J/ApJS/247/16
  Extreme high-frequency-peaked BL Lac objects (Acciari+, 2020)
spectrum
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1.J/ApJS/247/16/fermiMain spectral parameters resulting from the analysis of Swift-XRT and Fermi-LAT data (Table 4) and parameters from the 3FGL, 2FHL, and 3FHL catalogs (Table 6) (11 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)
  Name (char) Target name (meta.id;meta.main)
  n_Name (char) [b] Note on name (Note 1)   (meta.note)
  MJDx d [55648/57784] Swift-XRT observation date (time.epoch)
  F2-10keV 10-15W/m2 [1.6/47.4] Swift-XRT X-ray flux in the 2-10keV energy range (phot.flux;em.X-ray)
  e_F2-10keV 10-15W/m2 [0.1/1.4] Fxrt uncertainty (stat.error)
  GammaX   [1.63/2.18] Spectral index of X-ray spectrum (spect.index)
  e_GammaX   [0.02/0.2] GammaX uncertainty (stat.error)
  chi2   [9.5/171.2] Fit χ2 (stat.fit.param;meta.modelled)
  dof   [14/172] Degree of freedom (stat.fit.dof)
  MJDSt d (n) [54682/57388] Fermi-LAT start date of observation (time.epoch)

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(n) indicates a possible blank or NULL column(i)indexed column
  MJDEnd d (n) [56292/58318] Fermi-LAT end date of observation (time.epoch)
  F1-300GeV 10-10cm-2/s(n) [1.4/6.7] Fermi-LAT gamma-ray flux in the range of 1-300GeV (phot.flux.density;em.gamma.hard)
  e_F1-300GeV 10-10cm-2/s(n) [0.6/1.7] Ffermi uncertainty (stat.error)
  GammaR  (n) [1.4/2] Spectral index of the HE gamma-ray spectrum (spect.index)
  e_GammaR  (n) [0.2/0.2] GammaR uncertainty (stat.error)
  TS   [23/94] Likelihood test statistics (TS) of the fitted model (Note 2)   (stat.likelihood)
  F1-100GeV 10-10ph/cm2/s(n) [1.8/6.6] 3FGL gamma-ray flux in 1-100 GeV energy range (phot.flux.density;em.gamma.hard)
  e_F1-100GeV 10-10ph/cm2/s(n) [0.1/1] F3FGL uncertainty (stat.error)
  Gam3FGL  (n) [1.4/2.1] Spectral index for the power-law fit in 100MeV-100GeV (spect.index)
  e_Gam3FGL  (n) [0.08/0.3] Gam3FGL uncertainty (stat.error)
  Sig  (n) [5.1/16.7] the detection significance reported by 3FGL (Acero+ 2015, J/ApJS/218/23) (stat.fit.goodness;instr.saturation)
  Gam3FHL  (n) [1.5/2.1] Spectral index for the power-law fit >10GeV reported in 3FHL (Ajello+ 2017, J/ApJS/232/18) (spect.index)
  e_Gam3FHL  (n) [0.1/0.4] Gam3FHL uncertainty (stat.error)
  Gam2FHL  (n) [1.09/3.6] Spectral index for the power-law fit >50GeV reported in 2FHL (Ackermann+ 2016, J/ApJS/222/5) (spect.index)
  e_Gam2FHL  (n) [0.4/1.4] Gam2FHL uncertainty (stat.error)

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