NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-19 T07:48:30 PDT
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Spectral Energy Distribution (SED) for 3C 442A Group:

3 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) 5.10 +/- 32.1% 10^-12^ erg/cm^2^/s 3.15E+17 1.62E-06 +/- 5.20E-07 Jy Broad-band 1998MNRAS.301..881E 1
2 0.1-2.4 keV (ROSAT) 4.515E-11 +/- 17.7% erg/s/cm^2^ 3.02E+17 1.50E-05 +/- 2.65E-06 Jy Broad-band 2004A&A...423..449P 2
3 0.1-2.4 keV Chandra 3.24E-12 ... erg/s/cm^2^ 3.02E+17 1.07E-06 ... Jy Broad-band 2011A&A...535A.105E 3


Detailed Information for Each Entry

 No. 1
Reference Code : 1998MNRAS.301..881E
Freq. targeted : 0.1-2.4 keV (ROSAT) 
Measurement    :  5.10        10^-12^ erg/cm^2^/s  = 5.10E-15 W m^-2^
Uncertainty    :  32.1%       10^-12^ erg/cm^2^/s  = 1.64E-15
Significance   : 1 sigma
Freq or Vel.   : 1.3          keV          (OBS   )= 3.15E+17 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 221447.         +135002. (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 : 4.515E-11 erg/s/cm^2^ = 4.52E-14 W m^-2^ Uncertainty : 17.7% erg/s/cm^2^ = 7.99E-15 Significance : 1 sigma Freq or Vel. : 1.25 keV (OBS )= 3.02E+17 Hz Frequency mode : Broad-band measurement Coord. targeted: 333.7076 +13.8304 (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 : 2011A&A...535A.105E Freq. targeted : 0.1-2.4 keV Chandra Measurement : 3.24E-12 erg/s/cm^2^ = 3.24E-15 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: 22 14 46.016 +13 50 50.80 (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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