NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-20 T03:43:17 PDT
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Spectral Energy Distribution (SED) for 3C 235:

18 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 u (SDSS PSF) AB 20.881 +/- 0.085 asinh mag 8.36E+14 1.67E-05 +/- 1.31E-06 Jy Broad-band SDSS Qualifiers 2007SDSS6.C...0000: 1
2 g (SDSS PSF) AB 20.843 +/- 0.038 asinh mag 6.17E+14 1.67E-05 +/- 5.85E-07 Jy Broad-band SDSS Qualifiers 2007SDSS6.C...0000: 2
3 r (SDSS PSF) AB 20.544 +/- 0.032 asinh mag 4.77E+14 2.20E-05 +/- 6.49E-07 Jy Broad-band SDSS Qualifiers 2007SDSS6.C...0000: 3
4 i (SDSS PSF) AB 20.103 +/- 0.034 asinh mag 3.89E+14 3.30E-05 +/- 1.03E-06 Jy Broad-band SDSS Qualifiers 2007SDSS6.C...0000: 4
5 z (SDSS PSF) AB 20.033 +/- 0.103 asinh mag 3.25E+14 3.44E-05 +/- 3.30E-06 Jy Broad-band SDSS Qualifiers 2007SDSS6.C...0000: 5
6 K (UKIRT) 17.304 ... mag 1.37E+14 7.87E-05 2.39E-06 Jy Broad-band 3" diameter aperture 2006MNRAS.373.1531C 6
7 K (UKIRT) 16.950 ... mag 1.37E+14 1.09E-04 9.24E-06 Jy Broad-band 8" diameter aperture 2006MNRAS.373.1531C 7
8 K (UKIRT) 17.092 ... mag 1.37E+14 9.57E-05 4.58E-06 Jy Broad-band 5" diameter aperture 2006MNRAS.373.1531C 8
9 4.85 GHz 152 +/- 18 milliJy 4.85E+09 1.52E-01 +/- 1.80E-02 Jy Broad-band 1991ApJS...75.1011G 9
10 4.85 GHz 150 +/- 15 % milliJy 4.85E+09 1.50E-01 +/- 2.25E-02 Jy Broad-band 1991ApJS...75....1B 10
11 1400 MHz (NRAO) 0.51 +/- 0.04 Jy 1.40E+09 5.10E-01 +/- 4.00E-02 Jy Broad-band 1966ApJS...13...65P 11
12 1.40 GHz 536 ... milliJy 1.40E+09 5.36E-01 ... Jy Broad-band 1992ApJS...79..331W 12
13 1.4GHz 619.5 +/- 18.6 milliJy 1.40E+09 6.20E-01 +/- 1.86E-02 Jy Broad-band 1998AJ....115.1693C 13
14 750 MHz (NRAO) 1.28 +/- 0.04 Jy 7.50E+08 1.28E+00 +/- 4.00E-02 Jy Broad-band 1966ApJS...13...65P 14
15 365 MHz (Texas) 3.058 +/- 0.062 Jy 3.65E+08 3.06E+00 +/- 6.20E-02 Jy Broad-band Model:D;MFlag:+;EFlag:+;LFlag:+. 1996AJ....111.1945D 15
16 178 MHz 5.2 +/- 12.5% Jy 1.78E+08 5.20E+00 +/- 6.50E-01 Jy Broad-band 1967MmRAS..71...49G 16
17 74 MHz (VLA) 11.28 +/- 1.13 Jy 7.38E+07 1.13E+01 +/- 1.13E+00 Jy Broad-band Corrected for clean bias 2007AJ....134.1245C 17
18 26.3 MHz 27. +/- 9. Jy 2.63E+07 2.70E+01 +/- 9.00E+00 Jy Broad-band 1975AJ.....80..931V 18


Detailed Information for Each Entry

 No. 1
Reference Code : 2007SDSS6.C...0000:
Freq. targeted : u (SDSS PSF) AB     
Measurement    :  20.881      asinh mag            = 1.67E-31 W m^-2^ Hz^-1^
Uncertainty    :  0.085       asinh mag            = 1.31E-32
Significance   : based on count statistics only
Freq or Vel.   : 3585         A            (OBS   )= 8.36E+14 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 151.6689289674  48.2192049736 (J2000)
Spatial mode   : Modelled datum
Notes          : From new raw data
Qualifiers     : SDSS flags
                 BAD_RADIAL - some low S/N radial points
                 INTERP - object contains interpolated-over pixels
                 BINNED1 - detected at >=5 sigma in original imaging frame
                 BINNED_CENTER - image was binned while centroiding
                 INTERP_CENTER - interpolated pixel(s) within 3 pixels of center
                 PSF_FLUX_INTERP - a signifcant amount of PSF's flux is interpolated

No. 2 Reference Code : 2007SDSS6.C...0000: Freq. targeted : g (SDSS PSF) AB Measurement : 20.843 asinh mag = 1.67E-31 W m^-2^ Hz^-1^ Uncertainty : 0.038 asinh mag = 5.85E-33 Significance : based on count statistics only Freq or Vel. : 4858 A (OBS )= 6.17E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 151.6689289674 48.2192049736 (J2000) Spatial mode : Modelled datum Notes : From new raw data Qualifiers : SDSS flags BAD_RADIAL - some low S/N radial points BINNED1 - detected at >=5 sigma in original imaging frame BINNED_CENTER - image was binned while centroiding
No. 3 Reference Code : 2007SDSS6.C...0000: Freq. targeted : r (SDSS PSF) AB Measurement : 20.544 asinh mag = 2.20E-31 W m^-2^ Hz^-1^ Uncertainty : 0.032 asinh mag = 6.49E-33 Significance : based on count statistics only Freq or Vel. : 6290 A (OBS )= 4.77E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 151.6689289674 48.2192049736 (J2000) Spatial mode : Modelled datum Notes : From new raw data Qualifiers : SDSS flags BAD_RADIAL - some low S/N radial points BINNED1 - detected at >=5 sigma in original imaging frame BINNED_CENTER - image was binned while centroiding CANONICAL_BAND - this band was primary (usually r)
No. 4 Reference Code : 2007SDSS6.C...0000: Freq. targeted : i (SDSS PSF) AB Measurement : 20.103 asinh mag = 3.30E-31 W m^-2^ Hz^-1^ Uncertainty : 0.034 asinh mag = 1.03E-32 Significance : based on count statistics only Freq or Vel. : 7706 A (OBS )= 3.89E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 151.6689289674 48.2192049736 (J2000) Spatial mode : Modelled datum Notes : From new raw data Qualifiers : SDSS flags BAD_RADIAL - some low S/N radial points BINNED1 - detected at >=5 sigma in original imaging frame BINNED_CENTER - image was binned while centroiding
No. 5 Reference Code : 2007SDSS6.C...0000: Freq. targeted : z (SDSS PSF) AB Measurement : 20.033 asinh mag = 3.44E-31 W m^-2^ Hz^-1^ Uncertainty : 0.103 asinh mag = 3.30E-32 Significance : based on count statistics only Freq or Vel. : 9222 A (OBS )= 3.25E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 151.6689289674 48.2192049736 (J2000) Spatial mode : Modelled datum Notes : From new raw data Qualifiers : SDSS flags BAD_RADIAL - some low S/N radial points ELLIPFAINT - no isophotal fits performed BINNED1 - detected at >=5 sigma in original imaging frame BINNED_CENTER - image was binned while centroiding
No. 6 Reference Code : 2006MNRAS.373.1531C Freq. targeted : K (UKIRT) Measurement : 17.304 mag = 7.87E-31 W m^-2^ Hz^-1^ Uncertainty : mag = 2.39E-32 Significance : no uncertainty reported Freq or Vel. : 2.195 microns (OBS )= 1.37E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 10 06 40.55 +48 13 09.6 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 3" diameter aperture
No. 7 Reference Code : 2006MNRAS.373.1531C Freq. targeted : K (UKIRT) Measurement : 16.950 mag = 1.09E-30 W m^-2^ Hz^-1^ Uncertainty : mag = 9.24E-32 Significance : no uncertainty reported Freq or Vel. : 2.195 microns (OBS )= 1.37E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 10 06 40.55 +48 13 09.6 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 8" diameter aperture
No. 8 Reference Code : 2006MNRAS.373.1531C Freq. targeted : K (UKIRT) Measurement : 17.092 mag = 9.57E-31 W m^-2^ Hz^-1^ Uncertainty : mag = 4.58E-32 Significance : no uncertainty reported Freq or Vel. : 2.195 microns (OBS )= 1.37E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 10 06 40.55 +48 13 09.6 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 5" diameter aperture
No. 9 Reference Code : 1991ApJS...75.1011G Freq. targeted : 4.85 GHz Measurement : 152 milliJy = 1.52E-27 W m^-2^ Hz^-1^ Uncertainty : 18 milliJy = 1.80E-28 Significance : rms noise Freq or Vel. : 4.85 GHz (OBS )= 4.85E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 100331.3 +482720 (B1950) Spatial mode : Modelled datum Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 10 Reference Code : 1991ApJS...75....1B Freq. targeted : 4.85 GHz Measurement : 150 milliJy = 1.50E-27 W m^-2^ Hz^-1^ Uncertainty : 15 % milliJy = 2.25E-28 Significance : uncertainty Freq or Vel. : 4.85 GHz (OBS )= 4.85E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 100331.3 +482722 (B1950) Spatial mode : Peak flux Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 11 Reference Code : 1966ApJS...13...65P Freq. targeted : 1400 MHz (NRAO) Measurement : 0.51 Jy = 5.10E-27 W m^-2^ Hz^-1^ Uncertainty : 0.04 Jy = 4.00E-28 Significance : internal error Freq or Vel. : 1400 MHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 100334.6 +482758. (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 12 Reference Code : 1992ApJS...79..331W Freq. targeted : 1.40 GHz Measurement : 536 milliJy = 5.36E-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: 100331.3 +482722 (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 13 Reference Code : 1998AJ....115.1693C Freq. targeted : 1.4GHz Measurement : 619.5 milliJy = 6.20E-27 W m^-2^ Hz^-1^ Uncertainty : 18.6 milliJy = 1.86E-28 Significance : uncertainty Freq or Vel. : 1.40 GHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 10 06 40.54 +48 13 9.3 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 14 Reference Code : 1966ApJS...13...65P Freq. targeted : 750 MHz (NRAO) Measurement : 1.28 Jy = 1.28E-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: 100334.6 +482758. (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 15 Reference Code : 1996AJ....111.1945D Freq. targeted : 365 MHz (Texas) Measurement : 3.058 Jy = 3.06E-26 W m^-2^ Hz^-1^ Uncertainty : 0.062 Jy = 6.20E-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: 100330.671 482747.81 (B1950) Spatial mode : Integrated from scans Notes : From new raw data Qualifiers : Model:D;MFlag:+;EFlag:+;LFlag:+.
No. 16 Reference Code : 1967MmRAS..71...49G Freq. targeted : 178 MHz Measurement : 5.2 Jy = 5.20E-26 W m^-2^ Hz^-1^ Uncertainty : 12.5% Jy = 6.50E-27 Significance : uncertainty Freq or Vel. : 178 MHz (OBS )= 1.78E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 100330.6 +482754 (B1950) Spatial mode : Integrated from scans Notes : From new raw data; Uncorrected for known sources in beam Qualifiers :
No. 17 Reference Code : 2007AJ....134.1245C Freq. targeted : 74 MHz (VLA) Measurement : 11.28 Jy = 1.13E-25 W m^-2^ Hz^-1^ Uncertainty : 1.13 Jy = 1.13E-26 Significance : rms uncertainty Freq or Vel. : 73.8 MHz (OBS )= 7.38E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 10 06 41.10 +48 13 11.1 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Corrected for clean bias
No. 18 Reference Code : 1975AJ.....80..931V Freq. targeted : 26.3 MHz Measurement : 27. Jy = 2.70E-25 W m^-2^ Hz^-1^ Uncertainty : 9. Jy = 9.00E-26 Significance : uncertainty Freq or Vel. : 26.3 MHz (OBS )= 2.63E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 100348. +483400. (B1950) Spatial mode : Integrated from scans; Beam filling or dilution corrected Notes : From new raw data Qualifiers :

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