NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-03-22 T11:07:56 PDT
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Spectral Energy Distribution (SED) for NGC 4520:

23 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 20.7421 +/- 0.275764 mag 1.95E+15 1.83E-05 +/- 4.65E-06 Jy Broad-band Kron flux in elliptical aperture 2012GASC..C...0000S 1
2 FUV (GALEX) AB 22.2380 +/- 0.520392 mag 1.95E+15 4.62E-06 +/- 2.21E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 2
3 FUV (GALEX) AB 20.3695 +/- 0.0676332 mag 1.95E+15 2.58E-05 +/- 1.61E-06 Jy Broad-band Kron flux in elliptical aperture 2012GMSC..C...0000S 3
4 FUV (GALEX) AB 21.5702 +/- 0.0663988 mag 1.95E+15 8.55E-06 +/- 5.23E-07 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GMSC..C...0000S 4
5 NUV (GALEX) AB 19.3509 +/- 0.0814562 mag 1.29E+15 6.60E-05 +/- 4.95E-06 Jy Broad-band Kron flux in elliptical aperture 2012GASC..C...0000S 5
6 NUV (GALEX) AB 20.8845 +/- 0.140132 mag 1.29E+15 1.61E-05 +/- 2.07E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 6
7 NUV (GALEX) AB 19.1320 +/- 0.0187563 mag 1.29E+15 8.08E-05 +/- 1.39E-06 Jy Broad-band Kron flux in elliptical aperture 2012GMSC..C...0000S 7
8 NUV (GALEX) AB 20.7772 +/- 0.0265764 mag 1.29E+15 1.77E-05 +/- 4.34E-07 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GMSC..C...0000S 8
9 J (2MASS/CTIO) 12.45 +/- 0.008 mag 2.43E+14 1.67E-02 +/- 1.23E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 9
10 J (2MASS/CTIO) 12.791 +/- 0.054 mag 2.43E+14 1.22E-02 +/- 6.06E-04 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 10
11 J 11.436 +/- 0.024 mag 2.40E+14 4.24E-02 +/- 9.48E-04 Jy Broad-band 47.8 x 28.7 arcsec integration area. 20032MASX.C.......: 11
12 J_14arcsec (2MASS) 12.012 +/- 0.009 mag 2.40E+14 2.50E-02 +/- 2.08E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 12
13 J 11.268 +/- 0.027 mag 2.40E+14 4.95E-02 +/- 1.25E-03 Jy Broad-band 20032MASX.C.......: 13
14 H_14arcsec (2MASS) 11.311 +/- 0.010 mag 1.82E+14 3.06E-02 +/- 2.83E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 14
15 H 10.812 +/- 0.033 mag 1.82E+14 4.85E-02 +/- 1.50E-03 Jy Broad-band 47.8 x 28.7 arcsec integration area. 20032MASX.C.......: 15
16 H 10.744 +/- 0.032 mag 1.82E+14 5.16E-02 +/- 1.54E-03 Jy Broad-band 20032MASX.C.......: 16
17 H (2MASS/CTIO) 11.711 +/- 0.017 mag 1.80E+14 2.12E-02 +/- 3.32E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 17
18 H (2MASS/CTIO) 11.985 +/- 0.053 mag 1.80E+14 1.65E-02 +/- 8.03E-04 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 18
19 K_s (2MASS/CTIO) 11.445 +/- 0.009 mag 1.39E+14 1.76E-02 +/- 1.46E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 19
20 K_s (2MASS/CTIO) 11.51 +/- 0.04 mag 1.39E+14 1.66E-02 +/- 6.11E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 20
21 K_s_14arcsec (2MASS) 11.030 +/- 0.015 mag 1.38E+14 2.58E-02 +/- 3.59E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 21
22 K_s 10.361 +/- 0.043 mag 1.38E+14 4.78E-02 +/- 1.93E-03 Jy Broad-band 20032MASX.C.......: 22
23 K_s 10.480 +/- 0.050 mag 1.38E+14 4.29E-02 +/- 2.02E-03 Jy Broad-band 47.8 x 28.7 arcsec integration area. 20032MASX.C.......: 23


Detailed Information for Each Entry

 No. 1
Reference Code : 2012GASC..C...0000S
Freq. targeted : FUV (GALEX) AB      
Measurement    :  20.7421     mag                  = 1.83E-31 W m^-2^ Hz^-1^
Uncertainty    :  0.275764    mag                  = 4.65E-32
Significance   : uncertainty
Freq or Vel.   : 1538.6       A            (OBS   )= 1.95E+15 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 188.45836305325 -7.375612198007 (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 : 22.2380 mag = 4.62E-32 W m^-2^ Hz^-1^ Uncertainty : 0.520392 mag = 2.21E-32 Significance : uncertainty Freq or Vel. : 1538.6 A (OBS )= 1.95E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 188.45836305325 -7.375612198007 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Flux in 7.5 arcsec diameter aperture
No. 3 Reference Code : 2012GMSC..C...0000S Freq. targeted : FUV (GALEX) AB Measurement : 20.3695 mag = 2.58E-31 W m^-2^ Hz^-1^ Uncertainty : 0.0676332 mag = 1.61E-32 Significance : uncertainty Freq or Vel. : 1538.6 A (OBS )= 1.95E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 188.45807600362 -7.375481204433 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Kron flux in elliptical aperture
No. 4 Reference Code : 2012GMSC..C...0000S Freq. targeted : FUV (GALEX) AB Measurement : 21.5702 mag = 8.55E-32 W m^-2^ Hz^-1^ Uncertainty : 0.0663988 mag = 5.23E-33 Significance : uncertainty Freq or Vel. : 1538.6 A (OBS )= 1.95E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 188.45807600362 -7.375481204433 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Flux in 7.5 arcsec diameter aperture
No. 5 Reference Code : 2012GASC..C...0000S Freq. targeted : NUV (GALEX) AB Measurement : 19.3509 mag = 6.60E-31 W m^-2^ Hz^-1^ Uncertainty : 0.0814562 mag = 4.95E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 188.45836305325 -7.375612198007 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Kron flux in elliptical aperture
No. 6 Reference Code : 2012GASC..C...0000S Freq. targeted : NUV (GALEX) AB Measurement : 20.8845 mag = 1.61E-31 W m^-2^ Hz^-1^ Uncertainty : 0.140132 mag = 2.07E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 188.45836305325 -7.375612198007 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Flux in 7.5 arcsec diameter aperture
No. 7 Reference Code : 2012GMSC..C...0000S Freq. targeted : NUV (GALEX) AB Measurement : 19.1320 mag = 8.08E-31 W m^-2^ Hz^-1^ Uncertainty : 0.0187563 mag = 1.39E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 188.45807600362 -7.375481204433 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Kron flux in elliptical aperture
No. 8 Reference Code : 2012GMSC..C...0000S Freq. targeted : NUV (GALEX) AB Measurement : 20.7772 mag = 1.77E-31 W m^-2^ Hz^-1^ Uncertainty : 0.0265764 mag = 4.34E-33 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 188.45807600362 -7.375481204433 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Flux in 7.5 arcsec diameter aperture
No. 9 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 12.45 mag = 1.67E-28 W m^-2^ Hz^-1^ Uncertainty : 0.008 mag = 1.23E-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. 10 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 12.791 mag = 1.22E-28 W m^-2^ Hz^-1^ Uncertainty : 0.054 mag = 6.06E-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; Poor quality
No. 11 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 11.436 mag = 4.24E-28 W m^-2^ Hz^-1^ Uncertainty : 0.024 mag = 9.48E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 123349.89 -072231.8 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data; Corrected for contaminating sources Qualifiers : 47.8 x 28.7 arcsec integration area.
No. 12 Reference Code : 20032MASX.C.......: Freq. targeted : J_14arcsec (2MASS) Measurement : 12.012 mag = 2.50E-28 W m^-2^ Hz^-1^ Uncertainty : 0.009 mag = 2.08E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 123349.89 -072231.8 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 13 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 11.268 mag = 4.95E-28 W m^-2^ Hz^-1^ Uncertainty : 0.027 mag = 1.25E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 123349.89 -072231.8 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 14 Reference Code : 20032MASX.C.......: Freq. targeted : H_14arcsec (2MASS) Measurement : 11.311 mag = 3.06E-28 W m^-2^ Hz^-1^ Uncertainty : 0.010 mag = 2.83E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 123349.89 -072231.8 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 15 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 10.812 mag = 4.85E-28 W m^-2^ Hz^-1^ Uncertainty : 0.033 mag = 1.50E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 123349.89 -072231.8 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data; Corrected for contaminating sources Qualifiers : 47.8 x 28.7 arcsec integration area.
No. 16 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 10.744 mag = 5.16E-28 W m^-2^ Hz^-1^ Uncertainty : 0.032 mag = 1.54E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 123349.89 -072231.8 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 17 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 11.711 mag = 2.12E-28 W m^-2^ Hz^-1^ Uncertainty : 0.017 mag = 3.32E-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. 18 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 11.985 mag = 1.65E-28 W m^-2^ Hz^-1^ Uncertainty : 0.053 mag = 8.03E-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; Poor quality
No. 19 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 11.445 mag = 1.76E-28 W m^-2^ Hz^-1^ Uncertainty : 0.009 mag = 1.46E-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. 20 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 11.51 mag = 1.66E-28 W m^-2^ Hz^-1^ Uncertainty : 0.04 mag = 6.11E-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. 21 Reference Code : 20032MASX.C.......: Freq. targeted : K_s_14arcsec (2MASS) Measurement : 11.030 mag = 2.58E-28 W m^-2^ Hz^-1^ Uncertainty : 0.015 mag = 3.59E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 123349.89 -072231.8 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 22 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 10.361 mag = 4.78E-28 W m^-2^ Hz^-1^ Uncertainty : 0.043 mag = 1.93E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 123349.89 -072231.8 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 23 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 10.480 mag = 4.29E-28 W m^-2^ Hz^-1^ Uncertainty : 0.050 mag = 2.02E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 123349.89 -072231.8 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data; Corrected for contaminating sources Qualifiers : 47.8 x 28.7 arcsec integration area.

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