NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-18 T12:40:37 PDT
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Spectral Energy Distribution (SED) for NGC 4891:

11 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 ... >21.0775 mag 1.95E+15 < 1.35E-05 Jy Broad-band upper limit inside NUV Kron aperture 2012GASC..C...0000S 1
2 NUV (GALEX) AB 18.8011 +/- 0.0465097 mag 1.29E+15 1.10E-04 +/- 4.69E-06 Jy Broad-band Kron flux in elliptical aperture 2012GASC..C...0000S 2
3 NUV (GALEX) AB 19.1334 +/- 0.0537971 mag 1.29E+15 8.07E-05 +/- 4.00E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 3
4 J (2MASS/CTIO) 13.258 +/- 0.025 mag 2.43E+14 7.93E-03 +/- 1.83E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 4
5 J (2MASS/CTIO) 13.262 +/- 0.027 mag 2.43E+14 7.90E-03 +/- 1.96E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 5
6 H (2MASS/CTIO) 12.842 +/- 0.027 mag 1.80E+14 7.47E-03 +/- 1.86E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 6
7 H (2MASS/CTIO) 12.891 +/- 0.029 mag 1.80E+14 7.14E-03 +/- 1.91E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 7
8 K_s (2MASS/CTIO) 12.937 +/- 0.03 mag 1.39E+14 4.46E-03 +/- 1.23E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 8
9 K_s (2MASS/CTIO) 12.944 +/- 0.034 mag 1.39E+14 4.43E-03 +/- 1.39E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 9
10 HI (21 cm line) 34.00 +/- 2.80 Jy km s^-1^ 1.42E+09 1.59E+05 +/- 1.31E+04 Jy-Hz Line 1989H&RHI.C...0000H 10
11 HI (21 cm line) 31.10 +/- 3.50 Jy km s^-1^ 1.42E+09 1.46E+05 +/- 1.64E+04 Jy-Hz Line 1989H&RHI.C...0000H 11


Detailed Information for Each Entry

 No. 1
Reference Code : 2012GASC..C...0000S
Freq. targeted : FUV (GALEX) AB      
Measurement    : >21.0775     mag                  < 1.35E-31 W m^-2^ Hz^-1^      
Uncertainty    :
Significance   : 3 sigma
Freq or Vel.   : 1538.6       A            (OBS   )= 1.95E+15 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 195.19634600054 -13.42618485932 (J2000)
Spatial mode   : Flux integrated from map
Notes          : From new raw data
Qualifiers     : upper limit inside NUV Kron aperture    

No. 2 Reference Code : 2012GASC..C...0000S Freq. targeted : NUV (GALEX) AB Measurement : 18.8011 mag = 1.10E-30 W m^-2^ Hz^-1^ Uncertainty : 0.0465097 mag = 4.69E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 195.19634600054 -13.42618485932 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Kron flux in elliptical aperture
No. 3 Reference Code : 2012GASC..C...0000S Freq. targeted : NUV (GALEX) AB Measurement : 19.1334 mag = 8.07E-31 W m^-2^ Hz^-1^ Uncertainty : 0.0537971 mag = 4.00E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 195.19634600054 -13.42618485932 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Flux in 7.5 arcsec diameter aperture
No. 4 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 13.258 mag = 7.93E-29 W m^-2^ Hz^-1^ Uncertainty : 0.025 mag = 1.83E-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. 5 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 13.262 mag = 7.90E-29 W m^-2^ Hz^-1^ Uncertainty : 0.027 mag = 1.96E-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. 6 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 12.842 mag = 7.47E-29 W m^-2^ Hz^-1^ Uncertainty : 0.027 mag = 1.86E-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. 7 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 12.891 mag = 7.14E-29 W m^-2^ Hz^-1^ Uncertainty : 0.029 mag = 1.91E-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. 8 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 12.937 mag = 4.46E-29 W m^-2^ Hz^-1^ Uncertainty : 0.03 mag = 1.23E-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. 9 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 12.944 mag = 4.43E-29 W m^-2^ Hz^-1^ Uncertainty : 0.034 mag = 1.39E-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. 10 Reference Code : 1989H&RHI.C...0000H Freq. targeted : HI (21 cm line) Measurement : 34.00 Jy km s^-1^ = 1.59E-21 W m^-2^ Uncertainty : 2.80 Jy km s^-1^ = 1.31E-22 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: 125815.2 -131049. (B1950) Spatial mode : Not reported in paper Notes : Transformed from previously published data Qualifiers :
No. 11 Reference Code : 1989H&RHI.C...0000H Freq. targeted : HI (21 cm line) Measurement : 31.10 Jy km s^-1^ = 1.46E-21 W m^-2^ Uncertainty : 3.50 Jy km s^-1^ = 1.64E-22 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: 125815.2 -131049. (B1950) Spatial mode : Not reported in paper Notes : Transformed from previously published data Qualifiers :

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