NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-25 T10:45:06 PDT
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Spectral Energy Distribution (SED) for NGC 7017:

3 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 0.1-2 keV (ROSAT) 2.05E-13 +/- 4.10E-14 erg cm^-2^ s^-1^ 2.54E+17 8.07E-08 +/- 1.61E-08 Jy Broad-band 2005A&A...435..799T 1
2 R_25_ 13.19 +/- 0.34 mag 4.65E+14 1.62E-02 +/- 5.94E-03 Jy Broad-band 1998A&AS..129..399K 2
3 74 MHz (VLA) 17.22 +/- 1.92 Jy 7.38E+07 1.72E+01 +/- 1.92E+00 Jy Broad-band Corrected for clean bias 2007AJ....134.1245C 3


Detailed Information for Each Entry

 No. 1
Reference Code : 2005A&A...435..799T
Freq. targeted : 0.1-2 keV (ROSAT)   
Measurement    :  2.05E-13    erg cm^-2^ s^-1^     = 2.05E-16 W m^-2^
Uncertainty    :  4.10E-14    erg cm^-2^ s^-1^     = 4.10E-17
Significance   : uncertainty
Freq or Vel.   :     1.05     keV          (OBS   )= 2.54E+17 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 21 07 20.05     -25 29 16.2 (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 : 1998A&AS..129..399K Freq. targeted : R_25_ Measurement : 13.19 mag = 1.62E-28 W m^-2^ Hz^-1^ Uncertainty : 0.34 mag = 5.94E-29 Significance : estimated error Freq or Vel. : 6450 A (OBS )= 4.65E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 210424.72 -254119.4 (B1950) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 3 Reference Code : 2007AJ....134.1245C Freq. targeted : 74 MHz (VLA) Measurement : 17.22 Jy = 1.72E-25 W m^-2^ Hz^-1^ Uncertainty : 1.92 Jy = 1.92E-26 Significance : rms uncertainty Freq or Vel. : 73.8 MHz (OBS )= 7.38E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 21 07 19.19 -25 28 59.8 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Corrected for clean bias

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