NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-20 T13:37:38 PDT
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Spectral Energy Distribution (SED) for PKS 1657-298:

16 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 2-10 keV (BeppoSAX) 76.80E-11 +/- 4.70E-11 erg/cm^2^/s 1.45E+18 5.30E-05 +/- 3.24E-06 Jy Broad-band 2007A&A...472..705V 1
2 20 GHz (ATCA) 192 +/- 13 milliJy 1.99E+10 1.92E-01 +/- 1.30E-02 Jy Broad-band 2010MNRAS.402.2403M 2
3 8400 MHz 0.34 ... Jy 8.40E+09 3.40E-01 ... Jy Broad-band 1990PKS90.C...0000W 3
4 8 GHz (ATCA) 334 +/- 16 milliJy 8.00E+09 3.34E-01 +/- 1.60E-02 Jy Broad-band 2010MNRAS.402.2403M 4
5 5000 MHz 0.520 ... Jy 5.00E+09 5.20E-01 ... Jy Broad-band 1990PKS90.C...0000W 5
6 5 GHz (ATCA) 613 +/- 31 milliJy 5.00E+09 6.13E-01 +/- 3.10E-02 Jy Broad-band 2010MNRAS.402.2403M 6
7 4.85 GHz 662 +/- 47 milliJy 4.85E+09 6.62E-01 +/- 4.76E-02 Jy Broad-band 1996ApJS..103..145W 7
8 2700 MHz 1.070 ... Jy 2.70E+09 1.07E+00 ... Jy Broad-band 1990PKS90.C...0000W 8
9 1.4GHz 1777.4 +/- 53.3 milliJy 1.40E+09 1.78E+00 +/- 5.33E-02 Jy Broad-band 1998AJ....115.1693C 9
10 408 MHz 4.580 ... Jy 4.08E+08 4.58E+00 ... Jy Broad-band 1990PKS90.C...0000W 10
11 408 MHz 4.58 +/- 0.12 Jy 4.08E+08 4.58E+00 +/- 1.20E-01 Jy Broad-band 1981MNRAS.194..693L 11
12 365 MHz (Texas) 5.802 +/- 0.203 Jy 3.65E+08 5.80E+00 +/- 2.03E-01 Jy Broad-band Model:D;MFlag:+;EFlag:C;LFlag:+. 1996AJ....111.1945D 12
13 160 MHz 10.9 ... Jy 1.60E+08 1.09E+01 ... Jy Broad-band 1995AuJPh..48..143S 13
14 145 MHz (PAPER) 5.0 ... Jy 1.45E+08 5.00E+00 ... Jy Broad-band 2011ApJ...734L..34J 14
15 80 MHz 14. ... Jy 8.00E+07 1.40E+01 ... Jy Broad-band 1995AuJPh..48..143S 15
16 80 MHz 13.00 ... Jy 8.00E+07 1.30E+01 ... Jy Broad-band 1990PKS90.C...0000W 16


Detailed Information for Each Entry

 No. 1
Reference Code : 2007A&A...472..705V
Freq. targeted : 2-10 keV (BeppoSAX) 
Measurement    :  76.80E-11    erg/cm^2^/s         = 7.68E-13 W m^-2^
Uncertainty    :  4.70E-11     erg/cm^2^/s         = 4.70E-14
Significance   : uncertainty
Freq or Vel.   :       6.00   keV          (OBS   )= 1.45E+18 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 17 02 05.9      -29 57 56.1 (J2000)
Spatial mode   : Flux integrated from map
Notes          : From new raw data; Extinction-corrected for Milky Way; NED
                 frequency assigned to mid-point of band in keV
Qualifiers     :                                         

No. 2 Reference Code : 2010MNRAS.402.2403M Freq. targeted : 20 GHz (ATCA) Measurement : 192 milliJy = 1.92E-27 W m^-2^ Hz^-1^ Uncertainty : 13 milliJy = 1.30E-28 Significance : rms uncertainty Freq or Vel. : 19.904 GHz (OBS )= 1.99E+10 Hz Frequency mode : Broad-band measurement Coord. targeted: 17 01 09.75 -29 54 40.7 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 3 Reference Code : 1990PKS90.C...0000W Freq. targeted : 8400 MHz Measurement : 0.34 Jy = 3.40E-27 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 8400 MHz (OBS )= 8.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 16 57 58.9 -29 50 18 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 4 Reference Code : 2010MNRAS.402.2403M Freq. targeted : 8 GHz (ATCA) Measurement : 334 milliJy = 3.34E-27 W m^-2^ Hz^-1^ Uncertainty : 16 milliJy = 1.60E-28 Significance : rms uncertainty Freq or Vel. : 8 GHz (OBS )= 8.00E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 17 01 09.75 -29 54 40.7 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 5 Reference Code : 1990PKS90.C...0000W Freq. targeted : 5000 MHz Measurement : 0.520 Jy = 5.20E-27 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 5000 MHz (OBS )= 5.00E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 16 57 58.9 -29 50 18 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 6 Reference Code : 2010MNRAS.402.2403M Freq. targeted : 5 GHz (ATCA) Measurement : 613 milliJy = 6.13E-27 W m^-2^ Hz^-1^ Uncertainty : 31 milliJy = 3.10E-28 Significance : rms uncertainty Freq or Vel. : 5 GHz (OBS )= 5.00E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 17 01 09.75 -29 54 40.7 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 7 Reference Code : 1996ApJS..103..145W Freq. targeted : 4.85 GHz Measurement : 662 milliJy = 6.62E-27 W m^-2^ Hz^-1^ Uncertainty : 47 milliJy = 4.76E-28 Significance : rms noise Freq or Vel. : 4.85 GHz (OBS )= 4.85E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 170110.5 -295407 (J2000) Spatial mode : Modelled datum Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 8 Reference Code : 1990PKS90.C...0000W Freq. targeted : 2700 MHz Measurement : 1.070 Jy = 1.07E-26 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 2700 MHz (OBS )= 2.70E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 16 57 58.9 -29 50 18 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 9 Reference Code : 1998AJ....115.1693C Freq. targeted : 1.4GHz Measurement : 1777.4 milliJy = 1.78E-26 W m^-2^ Hz^-1^ Uncertainty : 53.3 milliJy = 5.33E-28 Significance : uncertainty Freq or Vel. : 1.40 GHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 17 01 9.83 -29 54 41.2 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 10 Reference Code : 1990PKS90.C...0000W Freq. targeted : 408 MHz Measurement : 4.580 Jy = 4.58E-26 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 408 MHz (OBS )= 4.08E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 16 57 58.9 -29 50 18 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 11 Reference Code : 1981MNRAS.194..693L Freq. targeted : 408 MHz Measurement : 4.58 Jy = 4.58E-26 W m^-2^ Hz^-1^ Uncertainty : 0.12 Jy = 1.20E-27 Significance : rms noise Freq or Vel. : 408 MHz (OBS )= 4.08E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 165758.3 -295021 (B1950) Spatial mode : Modelled datum Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 12 Reference Code : 1996AJ....111.1945D Freq. targeted : 365 MHz (Texas) Measurement : 5.802 Jy = 5.80E-26 W m^-2^ Hz^-1^ Uncertainty : 0.203 Jy = 2.03E-27 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: 165758.875 -295020.57 (B1950) Spatial mode : Integrated from scans Notes : From new raw data Qualifiers : Model:D;MFlag:+;EFlag:C;LFlag:+.
No. 13 Reference Code : 1995AuJPh..48..143S Freq. targeted : 160 MHz Measurement : 10.9 Jy = 1.09E-25 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 160 MHz (OBS )= 1.60E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 165801.6 -295041. (B1950) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 14 Reference Code : 2011ApJ...734L..34J Freq. targeted : 145 MHz (PAPER) Measurement : 5.0 Jy = 5.00E-26 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 145 MHz (OBS )= 1.45E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 255.32 -29.83 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 15 Reference Code : 1995AuJPh..48..143S Freq. targeted : 80 MHz Measurement : 14. Jy = 1.40E-25 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 80 MHz (OBS )= 8.00E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 165801.6 -295041. (B1950) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 16 Reference Code : 1990PKS90.C...0000W Freq. targeted : 80 MHz Measurement : 13.00 Jy = 1.30E-25 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 80 MHz (OBS )= 8.00E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 16 57 58.9 -29 50 18 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :

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