NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-19 T01:32:53 PDT
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Spectral Energy Distribution (SED) for PKS 1251-407:

13 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 0.2-10 keV (XMM) 1.97E-13 ... erg s^-1^ cm^-2^ 1.23E+18 1.60E-08 ... Jy Broad-band 2006MNRAS.368..985Y 1
2 0.2-10 keV (XMM) 1.66E-13 ... erg s^-1^ cm^-2^ 1.23E+18 1.35E-08 ... Jy Broad-band 2006MNRAS.368..985Y 2
3 20 GHz (ATCA) 141 +/- 6 milliJy 1.99E+10 1.41E-01 +/- 6.00E-03 Jy Broad-band 2010MNRAS.402.2403M 3
4 8.6 GHz (VLBA) 0.11 ... Jy 8.60E+09 1.10E-01 ... Jy Broad-band 2005AJ....129.1163P 4
5 8.4 GHz 153.6 ... milliJy 8.40E+09 1.54E-01 ... Jy Broad-band 2007ApJS..171...61H 5
6 8 GHz (ATCA) 139 +/- 7 milliJy 8.00E+09 1.39E-01 +/- 7.00E-03 Jy Broad-band 2010MNRAS.402.2403M 6
7 5000 MHz 0.220 ... Jy 5.00E+09 2.20E-01 ... Jy Broad-band 1990PKS90.C...0000W 7
8 5 GHz (ATCA) 150 +/- 8 milliJy 5.00E+09 1.50E-01 +/- 8.00E-03 Jy Broad-band 2010MNRAS.402.2403M 8
9 4.85 GHz 237 +/- 16 milliJy 4.85E+09 2.37E-01 +/- 1.60E-02 Jy Broad-band 1994ApJS...90..173G 9
10 4.85 GHz 238 +/- 15 milliJy 4.85E+09 2.38E-01 +/- 1.50E-02 Jy Broad-band 1994ApJS...91..111W 10
11 2700 MHz 0.250 ... Jy 2.70E+09 2.50E-01 ... Jy Broad-band 1990PKS90.C...0000W 11
12 2.3 GHz (VLBA) 0.14 ... Jy 2.30E+09 1.40E-01 ... Jy Broad-band 2005AJ....129.1163P 12
13 843 MHz (SUMSS) 186.4 +/- 5.8 milliJy 8.43E+08 1.86E-01 +/- 5.80E-03 Jy Broad-band 2008SUMSS.2.1.....: 13


Detailed Information for Each Entry

 No. 1
Reference Code : 2006MNRAS.368..985Y
Freq. targeted : 0.2-10 keV (XMM)    
Measurement    :  1.97E-13    erg s^-1^ cm^-2^     = 1.97E-16 W m^-2^
Uncertainty    :              erg s^-1^ cm^-2^     = 0.00E+00
Significance   : no uncertainty reported
Freq or Vel.   :      5.1     keV          (OBS   )= 1.23E+18 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 12 53 59.53     -40 59 30.7 (J2000)
Spatial mode   : Flux integrated from map
Notes          : From new raw data; Extinction-corrected for Milky Way; NED
                 frequency assigned to mid-point of band in keV
Qualifiers     :                                         

No. 2 Reference Code : 2006MNRAS.368..985Y Freq. targeted : 0.2-10 keV (XMM) Measurement : 1.66E-13 erg s^-1^ cm^-2^ = 1.66E-16 W m^-2^ Uncertainty : erg s^-1^ cm^-2^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 5.1 keV (OBS )= 1.23E+18 Hz Frequency mode : Broad-band measurement Coord. targeted: 12 53 59.53 -40 59 30.7 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data; NED frequency assigned to mid-point of band in keV Qualifiers :
No. 3 Reference Code : 2010MNRAS.402.2403M Freq. targeted : 20 GHz (ATCA) Measurement : 141 milliJy = 1.41E-27 W m^-2^ Hz^-1^ Uncertainty : 6 milliJy = 6.00E-29 Significance : rms uncertainty Freq or Vel. : 19.904 GHz (OBS )= 1.99E+10 Hz Frequency mode : Broad-band measurement Coord. targeted: 12 53 59.47 -40 59 31.9 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 4 Reference Code : 2005AJ....129.1163P Freq. targeted : 8.6 GHz (VLBA) Measurement : 0.11 Jy = 1.10E-27 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 8.6 GHz (OBS )= 8.60E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 12 53 59.533562 -40 59 30.68851 (J2000) Spatial mode : Total flux Notes : From new raw data Qualifiers :
No. 5 Reference Code : 2007ApJS..171...61H Freq. targeted : 8.4 GHz Measurement : 153.6 milliJy = 1.54E-27 W m^-2^ Hz^-1^ Uncertainty : milliJy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 8.4 GHz (OBS )= 8.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 12 53 59.62 -40 59 30.5 (J2000) Spatial mode : Flux integrated from map Notes : Averaged from previously published data Qualifiers :
No. 6 Reference Code : 2010MNRAS.402.2403M Freq. targeted : 8 GHz (ATCA) Measurement : 139 milliJy = 1.39E-27 W m^-2^ Hz^-1^ Uncertainty : 7 milliJy = 7.00E-29 Significance : rms uncertainty Freq or Vel. : 8 GHz (OBS )= 8.00E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 12 53 59.47 -40 59 31.9 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 7 Reference Code : 1990PKS90.C...0000W Freq. targeted : 5000 MHz Measurement : 0.220 Jy = 2.20E-27 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 5000 MHz (OBS )= 5.00E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 12 51 12.8 -40 43 11 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 8 Reference Code : 2010MNRAS.402.2403M Freq. targeted : 5 GHz (ATCA) Measurement : 150 milliJy = 1.50E-27 W m^-2^ Hz^-1^ Uncertainty : 8 milliJy = 8.00E-29 Significance : rms uncertainty Freq or Vel. : 5 GHz (OBS )= 5.00E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 12 53 59.47 -40 59 31.9 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 9 Reference Code : 1994ApJS...90..173G Freq. targeted : 4.85 GHz Measurement : 237 milliJy = 2.37E-27 W m^-2^ Hz^-1^ Uncertainty : 16 milliJy = 1.60E-28 Significance : rms noise Freq or Vel. : 4.85 GHz (OBS )= 4.85E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 125112.9 -404316 (B1950) Spatial mode : Modelled datum Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 10 Reference Code : 1994ApJS...91..111W Freq. targeted : 4.85 GHz Measurement : 238 milliJy = 2.38E-27 W m^-2^ Hz^-1^ Uncertainty : 15 milliJy = 1.50E-28 Significance : rms noise Freq or Vel. : 4.85 GHz (OBS )= 4.85E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 125358.1 -405928 (J2000) Spatial mode : Modelled datum Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 11 Reference Code : 1990PKS90.C...0000W Freq. targeted : 2700 MHz Measurement : 0.250 Jy = 2.50E-27 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 2700 MHz (OBS )= 2.70E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 12 51 12.8 -40 43 11 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 12 Reference Code : 2005AJ....129.1163P Freq. targeted : 2.3 GHz (VLBA) Measurement : 0.14 Jy = 1.40E-27 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 2.3 GHz (OBS )= 2.30E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 12 53 59.533562 -40 59 30.68851 (J2000) Spatial mode : Total flux Notes : From new raw data Qualifiers :
No. 13 Reference Code : 2008SUMSS.2.1.....: Freq. targeted : 843 MHz (SUMSS) Measurement : 186.4 milliJy = 1.86E-27 W m^-2^ Hz^-1^ Uncertainty : 5.8 milliJy = 5.80E-29 Significance : uncertainty Freq or Vel. : 843 MHz (OBS )= 8.43E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 125359.37 -405932.1 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :

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