NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-22 T07:00:24 PDT
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Spectral Energy Distribution (SED) for WBL 518:

5 Data Points
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Photometric Data --- Published and Homogenized [Frequency, Flux Density] Units

  Published UnitsHomogenized Units [Frequency, Flux Density]  
No.Observed PassbandMeasurementUncertaintyUnitsFreq (Hz)MeasurementUncertaintyUnitsModeAperture/QualifiersReference CodeNo.
1 0.1-2.4 keV (ROSAT) 18.40 +/- 14.7% 10^-12^ erg/cm^2^/s 3.15E+17 5.84E-06 +/- 8.56E-07 Jy Broad-band 1998MNRAS.301..881E 1
2 0.1-2.4 keV (ROSAT) 12.605E-11 +/- 8.0 % erg/s/cm^2^ 3.02E+17 4.18E-05 +/- 3.34E-06 Jy Broad-band 2004A&A...423..449P 2
3 0.1-2.4 keV (ROSAT) 18.4E-12 +/- 2.7E-12 erg/cm^2^/s 3.02E+17 6.09E-06 +/- 8.94E-07 Jy Broad-band 2009ApJ...690..879S 3
4 0.5-2 keV (XMM) 1.362E-11 +/- 0.490E-11 erg/cm^2^/s 3.02E+17 4.51E-06 +/- 1.62E-06 Jy Broad-band 2011A&A...526A..79E 4
5 0.1-2.4 keV Chandra 25.25E-12 ... erg/s/cm^2^ 3.02E+17 8.36E-06 ... Jy Broad-band 2011A&A...535A.105E 5


Detailed Information for Each Entry

 No. 1
Reference Code : 1998MNRAS.301..881E
Freq. targeted : 0.1-2.4 keV (ROSAT) 
Measurement    :  18.40       10^-12^ erg/cm^2^/s  = 1.84E-14 W m^-2^
Uncertainty    :  14.7%       10^-12^ erg/cm^2^/s  = 2.70E-15
Significance   : 1 sigma
Freq or Vel.   : 1.3          keV          (OBS   )= 3.15E+17 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 144037.         +032801. (J2000)
Spatial mode   : Integrated from scans
Notes          : From reprocessed raw data
Qualifiers     :                                         

No. 2 Reference Code : 2004A&A...423..449P Freq. targeted : 0.1-2.4 keV (ROSAT) Measurement : 12.605E-11 erg/s/cm^2^ = 1.26E-13 W m^-2^ Uncertainty : 8.0 % erg/s/cm^2^ = 1.01E-14 Significance : 1 sigma Freq or Vel. : 1.25 keV (OBS )= 3.02E+17 Hz Frequency mode : Broad-band measurement Coord. targeted: 220.1603 +03.4722 (J2000) Spatial mode : Flux integrated from map Notes : From reprocessed raw data; NED frequency assigned to mid-point of band in keV Qualifiers :
No. 3 Reference Code : 2009ApJ...690..879S Freq. targeted : 0.1-2.4 keV (ROSAT) Measurement : 18.4E-12 erg/cm^2^/s = 1.84E-14 W m^-2^ Uncertainty : 2.7E-12 erg/cm^2^/s = 2.70E-15 Significance : 1 sigma Freq or Vel. : 1.25 keV (OBS )= 3.02E+17 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux integrated from map Notes : From reprocessed raw data; NED frequency assigned to mid-point of band in keV Qualifiers :
No. 4 Reference Code : 2011A&A...526A..79E Freq. targeted : 0.5-2 keV (XMM) Measurement : 1.362E-11 erg/cm^2^/s = 1.36E-14 W m^-2^ Uncertainty : 0.490E-11 erg/cm^2^/s = 4.90E-15 Significance : uncertainty Freq or Vel. : 1.25 keV (OBS )= 3.02E+17 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Total flux Notes : From reprocessed raw data; NED frequency assigned to mid-point of band in keV Qualifiers :
No. 5 Reference Code : 2011A&A...535A.105E Freq. targeted : 0.1-2.4 keV Chandra Measurement : 25.25E-12 erg/s/cm^2^ = 2.52E-14 W m^-2^ Uncertainty : erg/s/cm^2^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 1.25 keV (OBS )= 3.02E+17 Hz Frequency mode : Broad-band measurement Coord. targeted: 14 40 37.939 +03 27 50.15 (J2000) Spatial mode : Modelled datum Notes : Averaged from previously published data; NED frequency assigned to mid-point of band in keV Qualifiers :

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