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Date and Time of the Query: 2019-07-18 T10:55:41 PDT
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Spectral Energy Distribution (SED) for B2 1138+25:

8 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 152 +/- 21 milliJy 4.85E+09 1.52E-01 +/- 2.10E-02 Jy Broad-band 1991ApJS...75.1011G 1
2 4.85 GHz 149 +/- 15 % milliJy 4.85E+09 1.49E-01 +/- 2.23E-02 Jy Broad-band 1991ApJS...75....1B 2
3 4830 MHz (NRAO) 112 ... milliJy 4.83E+09 1.12E-01 ... Jy Broad-band S/N = 14 1990ApJS...72..621L 3
4 1.40 GHz 380 ... milliJy 1.40E+09 3.80E-01 ... Jy Broad-band 1992ApJS...79..331W 4
5 408 MHz 0.720 +/- 0.08 Jy 4.08E+08 7.20E-01 +/- 8.00E-02 Jy Broad-band 1972A&AS....7....1C 5
6 365 MHz (Texas) 0.672 +/- 0.065 Jy 3.65E+08 6.72E-01 +/- 6.50E-02 Jy Broad-band Model:D;MFlag:+;EFlag:+;LFlag:W. 1996AJ....111.1945D 6
7 151 MHz 1.59 +/- 8.0 % Jy 1.51E+08 1.59E+00 +/- 1.27E-01 Jy Broad-band 1996MNRAS.282..779W 7
8 74 MHz (VLA) 1.21 +/- 0.16 Jy 7.38E+07 1.21E+00 +/- 1.60E-01 Jy Broad-band Corrected for clean bias 2007AJ....134.1245C 8


Detailed Information for Each Entry

 No. 1
Reference Code : 1991ApJS...75.1011G
Freq. targeted : 4.85 GHz            
Measurement    :  152         milliJy              = 1.52E-27 W m^-2^ Hz^-1^
Uncertainty    :  21          milliJy              = 2.10E-28
Significance   : rms noise
Freq or Vel.   : 4.85         GHz          (OBS   )= 4.85E+09 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 113816.9        +254220 (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 : 149 milliJy = 1.49E-27 W m^-2^ Hz^-1^ Uncertainty : 15 % milliJy = 2.23E-28 Significance : uncertainty Freq or Vel. : 4.85 GHz (OBS )= 4.85E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 113817.2 +254221 (B1950) Spatial mode : Peak flux Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 3 Reference Code : 1990ApJS...72..621L Freq. targeted : 4830 MHz (NRAO) Measurement : 112 milliJy = 1.12E-27 W m^-2^ Hz^-1^ Uncertainty : milliJy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 4830 MHz (OBS )= 4.83E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 11 40 50.0 +25 24 59 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : S/N = 14
No. 4 Reference Code : 1992ApJS...79..331W Freq. targeted : 1.40 GHz Measurement : 380 milliJy = 3.80E-27 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: 113817.2 +254221 (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 5 Reference Code : 1972A&AS....7....1C Freq. targeted : 408 MHz Measurement : 0.720 Jy = 7.20E-27 W m^-2^ Hz^-1^ Uncertainty : 0.08 Jy = 8.00E-28 Significance : internal error Freq or Vel. : 408 MHz (OBS )= 4.08E+08 Hz Frequency mode : Broad-band measurement; peak value reported Coord. targeted: 113817.9 +254200. (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 6 Reference Code : 1996AJ....111.1945D Freq. targeted : 365 MHz (Texas) Measurement : 0.672 Jy = 6.72E-27 W m^-2^ Hz^-1^ Uncertainty : 0.065 Jy = 6.50E-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: 113816.128 254208.31 (B1950) Spatial mode : Integrated from scans Notes : From new raw data Qualifiers : Model:D;MFlag:+;EFlag:+;LFlag:W.
No. 7 Reference Code : 1996MNRAS.282..779W Freq. targeted : 151 MHz Measurement : 1.59 Jy = 1.59E-26 W m^-2^ Hz^-1^ Uncertainty : 8.0 % Jy = 1.27E-27 Significance : estimated error Freq or Vel. : 151 MHz (OBS )= 1.51E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 113817.3 +254233 (B1950) Spatial mode : Flux integrated from map; Beam filling or dilution corrected Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 8 Reference Code : 2007AJ....134.1245C Freq. targeted : 74 MHz (VLA) Measurement : 1.21 Jy = 1.21E-26 W m^-2^ Hz^-1^ Uncertainty : 0.16 Jy = 1.60E-27 Significance : rms uncertainty Freq or Vel. : 73.8 MHz (OBS )= 7.38E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 11 40 51.53 +25 25 30.8 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Corrected for clean bias

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