NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-24 T11:45:15 PDT
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Spectral Energy Distribution (SED) for NGC 1023A:

9 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 FUV (GALEX) AB 17.92 +/- 0.09 mag 1.98E+15 2.47E-04 +/- 2.04E-05 Jy Broad-band 2007ApJS..173..185G 1
2 NUV (GALEX) AB 16.81 +/- 0.02 mag 1.32E+15 6.85E-04 +/- 1.26E-05 Jy Broad-band 2007ApJS..173..185G 2
3 V (Johnson) 15.270 +/- 0.03 mag 5.42E+14 2.84E-03 +/- 7.95E-05 Jy Broad-band 28" aperture 1976PASP...88..824G 3
4 V (Johnson) 14.220 +/- .05 mag 5.42E+14 7.47E-03 +/- 3.52E-04 Jy Broad-band 45" aperture 1976PASP...88..824G 4
5 R (CFHT) 14.52 ... mag 4.80E+14 4.79E-03 ... Jy Broad-band 2009MNRAS.398..722T 5
6 i 12.700 +/- 0.07 mag 3.33E+14 1.86E-02 +/- 1.24E-03 Jy Broad-band 45" aperture;Low quality data 1976PASP...88..824G 6
7 i 13.700 +/- 0.04 mag 3.33E+14 7.42E-03 +/- 2.78E-04 Jy Broad-band 28" aperture;Low quality data 1976PASP...88..824G 7
8 HI (21 cm line) 0.80 +/- 0.20 Jy km s^-1^ 1.42E+09 3.77E+03 +/- 9.42E+02 Jy-Hz Line 1989H&RHI.C...0000H 8
9 HI (21 cm line) 3.70 +/- 0.10 Jy km s^-1^ 1.42E+09 1.74E+04 +/- 4.71E+02 Jy-Hz Line 1989H&RHI.C...0000H 9


Detailed Information for Each Entry

 No. 1
Reference Code : 2007ApJS..173..185G
Freq. targeted : FUV (GALEX) AB      
Measurement    :  17.92        mag                 = 2.47E-30 W m^-2^ Hz^-1^
Uncertainty    :  0.09         mag                 = 2.04E-31
Significance   : uncertainty
Freq or Vel.   :       1516   A            (OBS   )= 1.98E+15 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 02 40 37.7      +39 03 27.0 (J2000)
Spatial mode   : Total flux
Notes          : From new raw data
Qualifiers     :                                         

No. 2 Reference Code : 2007ApJS..173..185G Freq. targeted : NUV (GALEX) AB Measurement : 16.81 mag = 6.85E-30 W m^-2^ Hz^-1^ Uncertainty : 0.02 mag = 1.26E-31 Significance : uncertainty Freq or Vel. : 2267 A (OBS )= 1.32E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 02 40 37.7 +39 03 27.0 (J2000) Spatial mode : Total flux Notes : From new raw data Qualifiers :
No. 3 Reference Code : 1976PASP...88..824G Freq. targeted : V (Johnson) Measurement : 15.270 mag = 2.84E-29 W m^-2^ Hz^-1^ Uncertainty : 0.03 mag = 7.95E-31 Significance : 1 sigma Freq or Vel. : 5530 A (OBS )= 5.42E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 28" aperture
No. 4 Reference Code : 1976PASP...88..824G Freq. targeted : V (Johnson) Measurement : 14.220 mag = 7.47E-29 W m^-2^ Hz^-1^ Uncertainty : .05 mag = 3.52E-30 Significance : 1 sigma Freq or Vel. : 5530 A (OBS )= 5.42E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 45" aperture
No. 5 Reference Code : 2009MNRAS.398..722T Freq. targeted : R (CFHT) Measurement : 14.52 mag = 4.79E-29 W m^-2^ Hz^-1^ Uncertainty : mag = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 6250 A (OBS )= 4.80E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 02 40 37.7 39 03 27 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 6 Reference Code : 1976PASP...88..824G Freq. targeted : i Measurement : 12.700 mag = 1.86E-28 W m^-2^ Hz^-1^ Uncertainty : 0.07 mag = 1.24E-29 Significance : 1 sigma Freq or Vel. : 9000 A (OBS )= 3.33E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data; derived from a flux in a different band and a color Qualifiers : 45" aperture;Low quality data
No. 7 Reference Code : 1976PASP...88..824G Freq. targeted : i Measurement : 13.700 mag = 7.42E-29 W m^-2^ Hz^-1^ Uncertainty : 0.04 mag = 2.78E-30 Significance : 1 sigma Freq or Vel. : 9000 A (OBS )= 3.33E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data; derived from a flux in a different band and a color Qualifiers : 28" aperture;Low quality data
No. 8 Reference Code : 1989H&RHI.C...0000H Freq. targeted : HI (21 cm line) Measurement : 0.80 Jy km s^-1^ = 3.77E-23 W m^-2^ Uncertainty : 0.20 Jy km s^-1^ = 9.42E-24 Significance : no uncertainty reported Freq or Vel. : 21 cm (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 023729.4 +385038. (B1950) Spatial mode : Not reported in paper Notes : Transformed from previously published data Qualifiers :
No. 9 Reference Code : 1989H&RHI.C...0000H Freq. targeted : HI (21 cm line) Measurement : 3.70 Jy km s^-1^ = 1.74E-22 W m^-2^ Uncertainty : 0.10 Jy km s^-1^ = 4.71E-24 Significance : no uncertainty reported Freq or Vel. : 21 cm (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 023729.4 +385038. (B1950) Spatial mode : Not reported in paper Notes : Transformed from previously published data Qualifiers :

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