NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-07-15 T17:02:04 PDT
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Spectral Energy Distribution (SED) for 3C 155:

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 353 +/- 38 milliJy 4.85E+09 3.53E-01 +/- 3.80E-02 Jy Broad-band 1991ApJS...75.1011G 1
2 4.85 GHz 351 +/- 15 % milliJy 4.85E+09 3.51E-01 +/- 5.27E-02 Jy Broad-band 1991ApJS...75....1B 2
3 1.40 GHz 1268 ... milliJy 1.40E+09 1.27E+00 ... Jy Broad-band 1992ApJS...79..331W 3
4 1.4GHz 1275.1 +/- 45.0 milliJy 1.40E+09 1.28E+00 +/- 4.50E-02 Jy Broad-band High peak 1998AJ....115.1693C 4
5 1400 MHz (NRAO) 1.29 +/- 0.06 Jy 1.40E+09 1.29E+00 +/- 6.00E-02 Jy Broad-band 1966ApJS...13...65P 5
6 750 MHz (NRAO) 2.19 +/- 0.06 Jy 7.50E+08 2.19E+00 +/- 6.00E-02 Jy Broad-band 1966ApJS...13...65P 6
7 365 MHz (Texas) 4.797 +/- 0.086 Jy 3.65E+08 4.80E+00 +/- 8.60E-02 Jy Broad-band Model:D;MFlag:+;EFlag:+;LFlag:+. 1996AJ....111.1945D 7
8 178 MHz 6.6 +/- 12.5% Jy 1.78E+08 6.60E+00 +/- 8.25E-01 Jy Broad-band 1967MmRAS..71...49G 8
9 151 MHz (6C) 6.62 +/- 0.040 Jy 1.52E+08 6.62E+00 +/- 4.00E-02 Jy Broad-band 1990MNRAS.246..256H 9
10 151 MHz (6C) 6.47 +/- 0.090 Jy 1.52E+08 6.47E+00 +/- 9.00E-02 Jy Broad-band 1990MNRAS.246..256H 10
11 74 MHz (VLA) 12.10 +/- 1.21 Jy 7.38E+07 1.21E+01 +/- 1.21E+00 Jy Broad-band Corrected for clean bias 2007AJ....134.1245C 11


Detailed Information for Each Entry

 No. 1
Reference Code : 1991ApJS...75.1011G
Freq. targeted : 4.85 GHz            
Measurement    :  353         milliJy              = 3.53E-27 W m^-2^ Hz^-1^
Uncertainty    :  38          milliJy              = 3.80E-28
Significance   : rms noise
Freq or Vel.   : 4.85         GHz          (OBS   )= 4.85E+09 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 061326.7        +540528 (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 : 351 milliJy = 3.51E-27 W m^-2^ Hz^-1^ Uncertainty : 15 % milliJy = 5.27E-28 Significance : uncertainty Freq or Vel. : 4.85 GHz (OBS )= 4.85E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 061326.8 +540528 (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 : 1268 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: 061326.8 +540528 (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 4 Reference Code : 1998AJ....115.1693C Freq. targeted : 1.4GHz Measurement : 1275.1 milliJy = 1.27E-26 W m^-2^ Hz^-1^ Uncertainty : 45.0 milliJy = 4.50E-28 Significance : uncertainty Freq or Vel. : 1.40 GHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 06 17 33.17 +54 04 27.4 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : High peak
No. 5 Reference Code : 1966ApJS...13...65P Freq. targeted : 1400 MHz (NRAO) Measurement : 1.29 Jy = 1.29E-26 W m^-2^ Hz^-1^ Uncertainty : 0.06 Jy = 6.00E-28 Significance : internal error Freq or Vel. : 1400 MHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 061328.5 +540608. (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 6 Reference Code : 1966ApJS...13...65P Freq. targeted : 750 MHz (NRAO) Measurement : 2.19 Jy = 2.19E-26 W m^-2^ Hz^-1^ Uncertainty : 0.06 Jy = 6.00E-28 Significance : internal error Freq or Vel. : 750 MHz (OBS )= 7.50E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 061328.5 +540608. (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 7 Reference Code : 1996AJ....111.1945D Freq. targeted : 365 MHz (Texas) Measurement : 4.797 Jy = 4.80E-26 W m^-2^ Hz^-1^ Uncertainty : 0.086 Jy = 8.60E-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: 061327.367 540534.95 (B1950) Spatial mode : Integrated from scans Notes : From new raw data Qualifiers : Model:D;MFlag:+;EFlag:+;LFlag:+.
No. 8 Reference Code : 1967MmRAS..71...49G Freq. targeted : 178 MHz Measurement : 6.6 Jy = 6.60E-26 W m^-2^ Hz^-1^ Uncertainty : 12.5% Jy = 8.25E-27 Significance : uncertainty Freq or Vel. : 178 MHz (OBS )= 1.78E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 061326.1 +540624 (B1950) Spatial mode : Integrated from scans Notes : From new raw data; Uncorrected for known sources in beam Qualifiers :
No. 9 Reference Code : 1990MNRAS.246..256H Freq. targeted : 151 MHz (6C) Measurement : 6.62 Jy = 6.62E-26 W m^-2^ Hz^-1^ Uncertainty : 0.040 Jy = 4.00E-28 Significance : typical accuracy Freq or Vel. : 151.5 MHz (OBS )= 1.52E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 061327.3 540534. (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 10 Reference Code : 1990MNRAS.246..256H Freq. targeted : 151 MHz (6C) Measurement : 6.47 Jy = 6.47E-26 W m^-2^ Hz^-1^ Uncertainty : 0.090 Jy = 9.00E-28 Significance : typical accuracy Freq or Vel. : 151.5 MHz (OBS )= 1.52E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 061327.3 540534. (B1950) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 11 Reference Code : 2007AJ....134.1245C Freq. targeted : 74 MHz (VLA) Measurement : 12.10 Jy = 1.21E-25 W m^-2^ Hz^-1^ Uncertainty : 1.21 Jy = 1.21E-26 Significance : rms uncertainty Freq or Vel. : 73.8 MHz (OBS )= 7.38E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 06 17 33.12 +54 04 27.4 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Corrected for clean bias

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