NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-20 T08:23:21 PDT
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Spectral Energy Distribution (SED) for IC 4271:

7 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 m_p 15.6 +/- 0.4 mag 6.81E+14 2.45E-03 +/- 1.09E-03 Jy Broad-band 1966CGCG3.C...0000Z 1
2 12 microns (IRAS) ... <6.233E-02 Jy 2.50E+13 < 6.23E-02 Jy Broad-band 1990IRASF.C...0000M 2
3 25 microns (IRAS) ... <1.173E-01 Jy 1.20E+13 < 1.17E-01 Jy Broad-band 1990IRASF.C...0000M 3
4 60 microns (IRAS) 2.267E-01 +/- 20 % Jy 5.00E+12 2.27E-01 +/- 4.53E-02 Jy Broad-band IRAS quality flag = 3 1990IRASF.C...0000M 4
5 100 microns (IRAS) ... <1.471E+00 Jy 3.00E+12 < 1.47E+00 Jy Broad-band 1990IRASF.C...0000M 5
6 1.4GHz 1.42 +/- 0.14 milliJy 1.40E+09 1.42E-03 +/- 1.44E-04 Jy Broad-band 1995ApJ...450..559B 6
7 1.4GHz 2.01 ... milliJy 1.40E+09 2.01E-03 ... Jy Broad-band 1995ApJ...450..559B 7


Detailed Information for Each Entry

 No. 1
Reference Code : 1966CGCG3.C...0000Z
Freq. targeted : m_p                 
Measurement    :  15.6        mag                  = 2.45E-29 W m^-2^ Hz^-1^
Uncertainty    :  0.4         mag                  = 1.09E-29
Significance   : rms noise
Freq or Vel.   : 4400         A            (OBS   )= 6.81E+14 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 132706.0        +374000. (B1950)
Spatial mode   : Estimated by eye
Notes          : From new raw data
Qualifiers     :                                         

No. 2 Reference Code : 1990IRASF.C...0000M Freq. targeted : 12 microns (IRAS) Measurement : <6.233E-02 Jy < 6.23E-28 W m^-2^ Hz^-1^ Uncertainty : Significance : 90% confidence Freq or Vel. : 12 microns (OBS )= 2.50E+13 Hz Frequency mode : Broad-band measurement Coord. targeted: 132704.5 +374025 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 3 Reference Code : 1990IRASF.C...0000M Freq. targeted : 25 microns (IRAS) Measurement : <1.173E-01 Jy < 1.17E-27 W m^-2^ Hz^-1^ Uncertainty : Significance : 90% confidence Freq or Vel. : 25 microns (OBS )= 1.20E+13 Hz Frequency mode : Broad-band measurement Coord. targeted: 132704.5 +374025 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 4 Reference Code : 1990IRASF.C...0000M Freq. targeted : 60 microns (IRAS) Measurement : 2.267E-01 Jy = 2.27E-27 W m^-2^ Hz^-1^ Uncertainty : 20 % Jy = 4.53E-28 Significance : uncertainty Freq or Vel. : 60 microns (OBS )= 5.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 132704.5 +374025 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 3
No. 5 Reference Code : 1990IRASF.C...0000M Freq. targeted : 100 microns (IRAS) Measurement : <1.471E+00 Jy < 1.47E-26 W m^-2^ Hz^-1^ Uncertainty : Significance : 90% confidence Freq or Vel. : 100 microns (OBS )= 3.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 132704.5 +374025 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 6 Reference Code : 1995ApJ...450..559B Freq. targeted : 1.4GHz Measurement : 1.42 milliJy = 1.42E-29 W m^-2^ Hz^-1^ Uncertainty : 0.14 milliJy = 1.44E-30 Significance : rms noise Freq or Vel. : 1.4 GHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement; synthetic band Coord. targeted: 132921.380 +372450.64 (J2000) Spatial mode : Peak flux Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 7 Reference Code : 1995ApJ...450..559B Freq. targeted : 1.4GHz Measurement : 2.01 milliJy = 2.01E-29 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; synthetic band Coord. targeted: 132921.380 +372450.64 (J2000) Spatial mode : From fitting to map Notes : From new raw data; Corrected for contaminating sources Qualifiers :

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