NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-23 T00:21:29 PDT
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Spectral Energy Distribution (SED) for NGC 6644:

13 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 J (2MASS/CTIO) 11.522 +/- 0.005 mag 2.43E+14 3.92E-02 +/- 1.81E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 1
2 J (2MASS/CTIO) 11.562 +/- 0.028 mag 2.43E+14 3.78E-02 +/- 9.75E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 2
3 H (2MASS/CTIO) 11.468 +/- 0.009 mag 1.80E+14 2.65E-02 +/- 2.20E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 3
4 H (2MASS/CTIO) 11.599 +/- 0.035 mag 1.80E+14 2.35E-02 +/- 7.57E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 4
5 K_s (2MASS/CTIO) 10.627 +/- 0.023 mag 1.39E+14 3.74E-02 +/- 7.93E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 5
6 K_s (2MASS/CTIO) 10.647 +/- 0.01 mag 1.39E+14 3.67E-02 +/- 3.38E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 6
7 12 microns (IRAS) 1.820 +/- 8 % Jy 2.50E+13 1.82E+00 +/- 1.46E-01 Jy Broad-band IRAS quality flag = 3 1988IRASP.C2..0000: 7
8 25 microns (IRAS) 7.560 +/- 6 % Jy 1.20E+13 7.56E+00 +/- 4.54E-01 Jy Broad-band IRAS quality flag = 3 1988IRASP.C2..0000: 8
9 60 microns (IRAS) 4.794 +/- 10 % Jy 5.00E+12 4.79E+00 +/- 4.79E-01 Jy Broad-band IRAS quality flag = 3 1988IRASP.C2..0000: 9
10 100 microns (IRAS) ... <18.389 Jy 3.00E+12 < 1.84E+01 Jy Broad-band 1988IRASP.C2..0000: 10
11 20 GHz (ATCA) 89 +/- 6 milliJy 1.99E+10 8.90E-02 +/- 6.00E-03 Jy Broad-band 2010MNRAS.402.2403M 11
12 4.85 GHz 87 +/- 11 milliJy 4.85E+09 8.70E-02 +/- 1.10E-02 Jy Broad-band 1994ApJS...90..179G 12
13 1.4GHz 64.6 +/- 2.0 milliJy 1.40E+09 6.46E-02 +/- 2.00E-03 Jy Broad-band 1998AJ....115.1693C 13


Detailed Information for Each Entry

 No. 1
Reference Code : 2006AJ....131.1163S
Freq. targeted : J (2MASS/CTIO)      
Measurement    :  11.522      mag                  = 3.92E-28 W m^-2^ Hz^-1^
Uncertainty    :  0.005       mag                  = 1.81E-30
Significance   : uncertainty
Freq or Vel.   : 1.235        microns      (OBS   )= 2.43E+14 Hz
Frequency mode : Broad-band measurement
Coord. targeted:
Spatial mode   : Flux in fixed aperture
Notes          : From new raw data
Qualifiers     : 4" aperture                             

No. 2 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 11.562 mag = 3.78E-28 W m^-2^ Hz^-1^ Uncertainty : 0.028 mag = 9.75E-30 Significance : uncertainty Freq or Vel. : 1.235 microns (OBS )= 2.43E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Profile-fit
No. 3 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 11.468 mag = 2.65E-28 W m^-2^ Hz^-1^ Uncertainty : 0.009 mag = 2.20E-30 Significance : uncertainty Freq or Vel. : 1.662 microns (OBS )= 1.80E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 4" aperture
No. 4 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 11.599 mag = 2.35E-28 W m^-2^ Hz^-1^ Uncertainty : 0.035 mag = 7.57E-30 Significance : uncertainty Freq or Vel. : 1.662 microns (OBS )= 1.80E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Profile-fit
No. 5 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 10.627 mag = 3.74E-28 W m^-2^ Hz^-1^ Uncertainty : 0.023 mag = 7.93E-30 Significance : uncertainty Freq or Vel. : 2.159 microns (OBS )= 1.39E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Profile-fit
No. 6 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 10.647 mag = 3.67E-28 W m^-2^ Hz^-1^ Uncertainty : 0.01 mag = 3.38E-30 Significance : uncertainty Freq or Vel. : 2.159 microns (OBS )= 1.39E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 4" aperture
No. 7 Reference Code : 1988IRASP.C2..0000: Freq. targeted : 12 microns (IRAS) Measurement : 1.820 Jy = 1.82E-26 W m^-2^ Hz^-1^ Uncertainty : 8 % Jy = 1.46E-27 Significance : uncertainty Freq or Vel. : 12 microns (OBS )= 2.50E+13 Hz Frequency mode : Broad-band measurement Coord. targeted: 182930.2 -251001 (B1950) Spatial mode : Integrated from scans Notes : From new raw data Qualifiers : IRAS quality flag = 3
No. 8 Reference Code : 1988IRASP.C2..0000: Freq. targeted : 25 microns (IRAS) Measurement : 7.560 Jy = 7.56E-26 W m^-2^ Hz^-1^ Uncertainty : 6 % Jy = 4.54E-27 Significance : uncertainty Freq or Vel. : 25 microns (OBS )= 1.20E+13 Hz Frequency mode : Broad-band measurement Coord. targeted: 182930.2 -251001 (B1950) Spatial mode : Integrated from scans Notes : From new raw data Qualifiers : IRAS quality flag = 3
No. 9 Reference Code : 1988IRASP.C2..0000: Freq. targeted : 60 microns (IRAS) Measurement : 4.794 Jy = 4.79E-26 W m^-2^ Hz^-1^ Uncertainty : 10 % Jy = 4.79E-27 Significance : uncertainty Freq or Vel. : 60 microns (OBS )= 5.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 182930.2 -251001 (B1950) Spatial mode : Integrated from scans Notes : From new raw data Qualifiers : IRAS quality flag = 3
No. 10 Reference Code : 1988IRASP.C2..0000: Freq. targeted : 100 microns (IRAS) Measurement : <18.389 Jy < 1.84E-25 W m^-2^ Hz^-1^ Uncertainty : Significance : 3 sigma Freq or Vel. : 100 microns (OBS )= 3.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 182930.2 -251001 (B1950) Spatial mode : Integrated from scans Notes : From new raw data Qualifiers :
No. 11 Reference Code : 2010MNRAS.402.2403M Freq. targeted : 20 GHz (ATCA) Measurement : 89 milliJy = 8.90E-28 W m^-2^ Hz^-1^ Uncertainty : 6 milliJy = 6.00E-29 Significance : rms uncertainty Freq or Vel. : 19.904 GHz (OBS )= 1.99E+10 Hz Frequency mode : Broad-band measurement Coord. targeted: 18 32 34.73 -25 07 45.7 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 12 Reference Code : 1994ApJS...90..179G Freq. targeted : 4.85 GHz Measurement : 87 milliJy = 8.70E-28 W m^-2^ Hz^-1^ Uncertainty : 11 milliJy = 1.10E-28 Significance : rms noise Freq or Vel. : 4.85 GHz (OBS )= 4.85E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 183232.1 -250752 (J2000) Spatial mode : Modelled datum Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 13 Reference Code : 1998AJ....115.1693C Freq. targeted : 1.4GHz Measurement : 64.6 milliJy = 6.46E-28 W m^-2^ Hz^-1^ Uncertainty : 2.0 milliJy = 2.00E-29 Significance : uncertainty Freq or Vel. : 1.40 GHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 18 32 34.69 -25 07 44.3 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :

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