NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-17 T10:52:16 PDT
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Spectral Energy Distribution (SED) for 4C +39.09:

11 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 4.85 GHz 331 +/- 41 milliJy 4.85E+09 3.31E-01 +/- 4.10E-02 Jy Broad-band 1991ApJS...75.1011G 1
2 4.85 GHz 326 +/- 15 % milliJy 4.85E+09 3.26E-01 +/- 4.89E-02 Jy Broad-band 1991ApJS...75....1B 2
3 1.40 GHz 1271 ... milliJy 1.40E+09 1.27E+00 ... Jy Broad-band 1992ApJS...79..331W 3
4 1400 MHz (NRAO) 1.21 +/- 0.05 Jy 1.40E+09 1.21E+00 +/- 5.00E-02 Jy Broad-band 1966ApJS...13...65P 4
5 750 MHz (NRAO) 2.13 +/- 0.04 Jy 7.50E+08 2.13E+00 +/- 4.00E-02 Jy Broad-band 1966ApJS...13...65P 5
6 408 MHz 2.829 +/- 8 % Jy 4.08E+08 2.83E+00 +/- 2.26E-01 Jy Broad-band 1973A&AS...11..291C 6
7 365 MHz (Texas) 2.646 +/- 0.067 Jy 3.65E+08 2.65E+00 +/- 6.70E-02 Jy Broad-band Model:D;MFlag:+;EFlag:W;LFlag:+. 1996AJ....111.1945D 7
8 178 MHz 4.5 +/- 17.5% Jy 1.78E+08 4.50E+00 +/- 7.88E-01 Jy Broad-band 1965MmRAS..69..183P 8
9 74 MHz (VLA) 13.20 +/- 1.35 Jy 7.38E+07 1.32E+01 +/- 1.35E+00 Jy Broad-band Corrected for clean bias 2007AJ....134.1245C 9
10 26.3 MHz 39. +/- 6. Jy 2.63E+07 3.90E+01 +/- 6.00E+00 Jy Broad-band 1975AJ.....80..931V 10
11 22 MHz (DRAO) 33 +/- 5 Jy 2.23E+07 3.30E+01 +/- 5.00E+00 Jy Broad-band 1986A&AS...65..485R 11


Detailed Information for Each Entry

 No. 1
Reference Code : 1991ApJS...75.1011G
Freq. targeted : 4.85 GHz            
Measurement    :  331         milliJy              = 3.31E-27 W m^-2^ Hz^-1^
Uncertainty    :  41          milliJy              = 4.10E-28
Significance   : rms noise
Freq or Vel.   : 4.85         GHz          (OBS   )= 4.85E+09 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 024121.9        +392131 (B1950)
Spatial mode   : Modelled datum
Notes          : From new raw data; Corrected for contaminating sources
Qualifiers     :                                         

No. 2 Reference Code : 1991ApJS...75....1B Freq. targeted : 4.85 GHz Measurement : 326 milliJy = 3.26E-27 W m^-2^ Hz^-1^ Uncertainty : 15 % milliJy = 4.89E-28 Significance : uncertainty Freq or Vel. : 4.85 GHz (OBS )= 4.85E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 024122.1 +392134 (B1950) Spatial mode : Peak flux Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 3 Reference Code : 1992ApJS...79..331W Freq. targeted : 1.40 GHz Measurement : 1271 milliJy = 1.27E-26 W m^-2^ Hz^-1^ Uncertainty : milliJy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 1.4 GHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 024122.1 +392134 (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 4 Reference Code : 1966ApJS...13...65P Freq. targeted : 1400 MHz (NRAO) Measurement : 1.21 Jy = 1.21E-26 W m^-2^ Hz^-1^ Uncertainty : 0.05 Jy = 5.00E-28 Significance : internal error Freq or Vel. : 1400 MHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 024121.2 +392052. (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 5 Reference Code : 1966ApJS...13...65P Freq. targeted : 750 MHz (NRAO) Measurement : 2.13 Jy = 2.13E-26 W m^-2^ Hz^-1^ Uncertainty : 0.04 Jy = 4.00E-28 Significance : internal error Freq or Vel. : 750 MHz (OBS )= 7.50E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 024121.2 +392052. (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 6 Reference Code : 1973A&AS...11..291C Freq. targeted : 408 MHz Measurement : 2.829 Jy = 2.83E-26 W m^-2^ Hz^-1^ Uncertainty : 8 % Jy = 2.26E-27 Significance : internal error Freq or Vel. : 408 MHz (OBS )= 4.08E+08 Hz Frequency mode : Broad-band measurement; peak value reported Coord. targeted: 024122.6 +392136. (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 7 Reference Code : 1996AJ....111.1945D Freq. targeted : 365 MHz (Texas) Measurement : 2.646 Jy = 2.65E-26 W m^-2^ Hz^-1^ Uncertainty : 0.067 Jy = 6.70E-28 Significance : internal error Freq or Vel. : 365 MHz (OBS )= 3.65E+08 Hz Frequency mode : Broad-band measurement; obtained by interpolation over frequency Coord. targeted: 024120.370 392101.61 (B1950) Spatial mode : Integrated from scans Notes : From new raw data Qualifiers : Model:D;MFlag:+;EFlag:W;LFlag:+.
No. 8 Reference Code : 1965MmRAS..69..183P Freq. targeted : 178 MHz Measurement : 4.5 Jy = 4.50E-26 W m^-2^ Hz^-1^ Uncertainty : 17.5% Jy = 7.88E-27 Significance : uncertainty Freq or Vel. : 178 MHz (OBS )= 1.78E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 024122.2 +392042 (B1950) Spatial mode : Integrated from scans Notes : From new raw data; Uncorrected for known sources in beam Qualifiers :
No. 9 Reference Code : 2007AJ....134.1245C Freq. targeted : 74 MHz (VLA) Measurement : 13.20 Jy = 1.32E-25 W m^-2^ Hz^-1^ Uncertainty : 1.35 Jy = 1.35E-26 Significance : rms uncertainty Freq or Vel. : 73.8 MHz (OBS )= 7.38E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 02 44 31.79 +39 33 59.4 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Corrected for clean bias
No. 10 Reference Code : 1975AJ.....80..931V Freq. targeted : 26.3 MHz Measurement : 39. Jy = 3.90E-25 W m^-2^ Hz^-1^ Uncertainty : 6. Jy = 6.00E-26 Significance : uncertainty Freq or Vel. : 26.3 MHz (OBS )= 2.63E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 024142. +392300. (B1950) Spatial mode : Integrated from scans; Beam filling or dilution corrected Notes : From new raw data Qualifiers :
No. 11 Reference Code : 1986A&AS...65..485R Freq. targeted : 22 MHz (DRAO) Measurement : 33 Jy = 3.30E-25 W m^-2^ Hz^-1^ Uncertainty : 5 Jy = 5.00E-26 Significance : uncertainty Freq or Vel. : 22.25 MHz (OBS )= 2.23E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 02 41 22.2 +39 20 42 (B1950) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :

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