NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-02-19 T17:32:12 PST
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Spectral Energy Distribution (SED) for NGC 4918:

19 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 17.6889 +/- 0.0486319 mag 1.95E+15 3.05E-04 +/- 1.37E-05 Jy Broad-band Kron flux in elliptical aperture 2012GASC..C...0000S 1
2 FUV (GALEX) AB 21.2607 +/- 0.342049 mag 1.95E+15 1.14E-05 +/- 3.58E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 2
3 NUV (GALEX) AB 17.3891 +/- 0.0243433 mag 1.29E+15 4.02E-04 +/- 9.01E-06 Jy Broad-band Kron flux in elliptical aperture 2012GASC..C...0000S 3
4 NUV (GALEX) AB 20.0891 +/- 0.0984057 mag 1.29E+15 3.34E-05 +/- 3.03E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 4
5 J (2MASS/CTIO) 13.959 +/- 0.008 mag 2.43E+14 4.16E-03 +/- 3.06E-05 Jy Broad-band 4" aperture 2006AJ....131.1163S 5
6 J (2MASS/CTIO) 14.79 +/- 0.118 mag 2.43E+14 1.93E-03 +/- 2.10E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 6
7 J_14arcsec (2MASS) 13.391 +/- 0.027 mag 2.40E+14 7.01E-03 +/- 1.76E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 7
8 J 12.951 +/- 0.041 mag 2.40E+14 1.05E-02 +/- 4.04E-04 Jy Broad-band 32.2 x 16.1 arcsec integration area. 20032MASX.C.......: 8
9 J 12.705 +/- 0.044 mag 2.40E+14 1.32E-02 +/- 5.45E-04 Jy Broad-band 20032MASX.C.......: 9
10 H_14arcsec (2MASS) 12.740 +/- 0.032 mag 1.82E+14 8.21E-03 +/- 2.46E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 10
11 H 12.314 +/- 0.052 mag 1.82E+14 1.22E-02 +/- 5.96E-04 Jy Broad-band 32.2 x 16.1 arcsec integration area. 20032MASX.C.......: 11
12 H 12.045 +/- 0.055 mag 1.82E+14 1.56E-02 +/- 8.09E-04 Jy Broad-band 20032MASX.C.......: 12
13 H (2MASS/CTIO) 13.195 +/- 0.035 mag 1.80E+14 5.40E-03 +/- 1.74E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 13
14 H (2MASS/CTIO) 14.13 +/- 0.132 mag 1.80E+14 2.28E-03 +/- 2.77E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 14
15 K_s (2MASS/CTIO) 13.776 +/- 0.116 mag 1.39E+14 2.06E-03 +/- 2.20E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 15
16 K_s (2MASS/CTIO) 12.91 +/- 0.057 mag 1.39E+14 4.57E-03 +/- 2.40E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 16
17 K_s_14arcsec (2MASS) 12.409 +/- 0.053 mag 1.38E+14 7.25E-03 +/- 3.63E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 17
18 K_s 11.811 +/- 0.094 mag 1.38E+14 1.26E-02 +/- 1.14E-03 Jy Broad-band 20032MASX.C.......: 18
19 K_s 11.987 +/- 0.095 mag 1.38E+14 1.07E-02 +/- 9.78E-04 Jy Broad-band 32.2 x 16.1 arcsec integration area. 20032MASX.C.......: 19


Detailed Information for Each Entry

 No. 1
Reference Code : 2012GASC..C...0000S
Freq. targeted : FUV (GALEX) AB      
Measurement    :  17.6889     mag                  = 3.05E-30 W m^-2^ Hz^-1^
Uncertainty    :  0.0486319   mag                  = 1.37E-31
Significance   : uncertainty
Freq or Vel.   : 1538.6       A            (OBS   )= 1.95E+15 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 195.46152150661 -4.500585878087 (J2000)
Spatial mode   : Flux integrated from map
Notes          : From new raw data
Qualifiers     : Kron flux in elliptical aperture        

No. 2 Reference Code : 2012GASC..C...0000S Freq. targeted : FUV (GALEX) AB Measurement : 21.2607 mag = 1.14E-31 W m^-2^ Hz^-1^ Uncertainty : 0.342049 mag = 3.58E-32 Significance : uncertainty Freq or Vel. : 1538.6 A (OBS )= 1.95E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 195.46152150661 -4.500585878087 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Flux in 7.5 arcsec diameter aperture
No. 3 Reference Code : 2012GASC..C...0000S Freq. targeted : NUV (GALEX) AB Measurement : 17.3891 mag = 4.02E-30 W m^-2^ Hz^-1^ Uncertainty : 0.0243433 mag = 9.01E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 195.46152150661 -4.500585878087 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Kron flux in elliptical aperture
No. 4 Reference Code : 2012GASC..C...0000S Freq. targeted : NUV (GALEX) AB Measurement : 20.0891 mag = 3.34E-31 W m^-2^ Hz^-1^ Uncertainty : 0.0984057 mag = 3.03E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 195.46152150661 -4.500585878087 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Flux in 7.5 arcsec diameter aperture
No. 5 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 13.959 mag = 4.16E-29 W m^-2^ Hz^-1^ Uncertainty : 0.008 mag = 3.06E-31 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. 6 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 14.79 mag = 1.93E-29 W m^-2^ Hz^-1^ Uncertainty : 0.118 mag = 2.10E-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. 7 Reference Code : 20032MASX.C.......: Freq. targeted : J_14arcsec (2MASS) Measurement : 13.391 mag = 7.01E-29 W m^-2^ Hz^-1^ Uncertainty : 0.027 mag = 1.76E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130150.62 -043002.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 8 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 12.951 mag = 1.05E-28 W m^-2^ Hz^-1^ Uncertainty : 0.041 mag = 4.04E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130150.62 -043002.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data; Corrected for contaminating sources Qualifiers : 32.2 x 16.1 arcsec integration area.
No. 9 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 12.705 mag = 1.32E-28 W m^-2^ Hz^-1^ Uncertainty : 0.044 mag = 5.45E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130150.62 -043002.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 10 Reference Code : 20032MASX.C.......: Freq. targeted : H_14arcsec (2MASS) Measurement : 12.740 mag = 8.21E-29 W m^-2^ Hz^-1^ Uncertainty : 0.032 mag = 2.46E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130150.62 -043002.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 11 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 12.314 mag = 1.22E-28 W m^-2^ Hz^-1^ Uncertainty : 0.052 mag = 5.96E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130150.62 -043002.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data; Corrected for contaminating sources Qualifiers : 32.2 x 16.1 arcsec integration area.
No. 12 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 12.045 mag = 1.56E-28 W m^-2^ Hz^-1^ Uncertainty : 0.055 mag = 8.09E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130150.62 -043002.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 13 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 13.195 mag = 5.40E-29 W m^-2^ Hz^-1^ Uncertainty : 0.035 mag = 1.74E-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. 14 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 14.13 mag = 2.28E-29 W m^-2^ Hz^-1^ Uncertainty : 0.132 mag = 2.77E-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. 15 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 13.776 mag = 2.06E-29 W m^-2^ Hz^-1^ Uncertainty : 0.116 mag = 2.20E-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. 16 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 12.91 mag = 4.57E-29 W m^-2^ Hz^-1^ Uncertainty : 0.057 mag = 2.40E-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. 17 Reference Code : 20032MASX.C.......: Freq. targeted : K_s_14arcsec (2MASS) Measurement : 12.409 mag = 7.25E-29 W m^-2^ Hz^-1^ Uncertainty : 0.053 mag = 3.63E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130150.62 -043002.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 18 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 11.811 mag = 1.26E-28 W m^-2^ Hz^-1^ Uncertainty : 0.094 mag = 1.14E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130150.62 -043002.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 19 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 11.987 mag = 1.07E-28 W m^-2^ Hz^-1^ Uncertainty : 0.095 mag = 9.78E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130150.62 -043002.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data; Corrected for contaminating sources Qualifiers : 32.2 x 16.1 arcsec integration area.

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