NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-24 T13:04:24 PDT
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Spectral Energy Distribution (SED) for B3 0631+444:

9 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 5 GHz (VLA) 6 ... milliJy 4.89E+09 6.00E-03 ... Jy Broad-band Core flux; S/N = 18 1997A&AS..122..235L 1
2 4.85 GHz 134 +/- 16 milliJy 4.85E+09 1.34E-01 +/- 1.60E-02 Jy Broad-band 1991ApJS...75.1011G 2
3 4.85 GHz 131 +/- 15 % milliJy 4.85E+09 1.31E-01 +/- 1.97E-02 Jy Broad-band 1991ApJS...75....1B 3
4 1.40 GHz 465 ... milliJy 1.40E+09 4.65E-01 ... Jy Broad-band 1992ApJS...79..331W 4
5 1.4GHz 387.6 +/- 13.4 milliJy 1.40E+09 3.88E-01 +/- 1.34E-02 Jy Broad-band 1998AJ....115.1693C 5
6 408 MHz 1.26 +/- 0.03 Jy 4.08E+08 1.26E+00 +/- 3.22E-02 Jy Broad-band 1985A&AS...59..255F 6
7 365 MHz (Texas) 1.170 +/- 0.046 Jy 3.65E+08 1.17E+00 +/- 4.60E-02 Jy Broad-band Model:D;MFlag:+;EFlag:+;LFlag:+.Poss var 1996AJ....111.1945D 7
8 74 MHz (VLA) 3.40 +/- 0.35 Jy 7.38E+07 3.40E+00 +/- 3.50E-01 Jy Broad-band Corrected for clean bias 2007AJ....134.1245C 8
9 26.3 MHz 35. +/- 7. Jy 2.63E+07 3.50E+01 +/- 7.00E+00 Jy Broad-band 1975AJ.....80..931V 9


Detailed Information for Each Entry

 No. 1
Reference Code : 1997A&AS..122..235L
Freq. targeted : 5 GHz (VLA)         
Measurement    :  6           milliJy              = 6.00E-29 W m^-2^ Hz^-1^
Uncertainty    :              milliJy              = 0.00E+00
Significance   : no uncertainty reported
Freq or Vel.   :      4.885   GHz          (OBS   )= 4.89E+09 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 06 35 10.60     +44 27 03.6 (J2000)
Spatial mode   : Flux integrated from map
Notes          : From new raw data
Qualifiers     : Core flux; S/N = 18                     

No. 2 Reference Code : 1991ApJS...75.1011G Freq. targeted : 4.85 GHz Measurement : 134 milliJy = 1.34E-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: 063130.7 +442944 (B1950) Spatial mode : Modelled datum Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 3 Reference Code : 1991ApJS...75....1B Freq. targeted : 4.85 GHz Measurement : 131 milliJy = 1.31E-27 W m^-2^ Hz^-1^ Uncertainty : 15 % milliJy = 1.97E-28 Significance : uncertainty Freq or Vel. : 4.85 GHz (OBS )= 4.85E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 063130.9 +442946 (B1950) Spatial mode : Peak flux Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 4 Reference Code : 1992ApJS...79..331W Freq. targeted : 1.40 GHz Measurement : 465 milliJy = 4.65E-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: 063130.9 +442946 (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 5 Reference Code : 1998AJ....115.1693C Freq. targeted : 1.4GHz Measurement : 387.6 milliJy = 3.88E-27 W m^-2^ Hz^-1^ Uncertainty : 13.4 milliJy = 1.34E-28 Significance : uncertainty Freq or Vel. : 1.40 GHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 06 35 9.94 +44 27 7.5 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 6 Reference Code : 1985A&AS...59..255F Freq. targeted : 408 MHz Measurement : 1.26 Jy = 1.26E-26 W m^-2^ Hz^-1^ Uncertainty : 0.03 Jy = 3.22E-28 Significance : rms uncertainty Freq or Vel. : 408 MHz (OBS )= 4.08E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 6 31 31.0 44 29 44 (B1950) Spatial mode : Total flux Notes : From new raw data Qualifiers :
No. 7 Reference Code : 1996AJ....111.1945D Freq. targeted : 365 MHz (Texas) Measurement : 1.170 Jy = 1.17E-26 W m^-2^ Hz^-1^ Uncertainty : 0.046 Jy = 4.60E-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: 063131.059 442933.91 (B1950) Spatial mode : Integrated from scans Notes : From new raw data Qualifiers : Model:D;MFlag:+;EFlag:+;LFlag:+.Poss var
No. 8 Reference Code : 2007AJ....134.1245C Freq. targeted : 74 MHz (VLA) Measurement : 3.40 Jy = 3.40E-26 W m^-2^ Hz^-1^ Uncertainty : 0.35 Jy = 3.50E-27 Significance : rms uncertainty Freq or Vel. : 73.8 MHz (OBS )= 7.38E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 06 35 10.35 +44 27 06.0 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Corrected for clean bias
No. 9 Reference Code : 1975AJ.....80..931V Freq. targeted : 26.3 MHz Measurement : 35. Jy = 3.50E-25 W m^-2^ Hz^-1^ Uncertainty : 7. Jy = 7.00E-26 Significance : uncertainty Freq or Vel. : 26.3 MHz (OBS )= 2.63E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 063130. +443200. (B1950) Spatial mode : Integrated from scans; Beam filling or dilution corrected Notes : From new raw data Qualifiers :

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