NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-02-17 T02:54:59 PST
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Spectral Energy Distribution (SED) for NGC 4820:

22 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 ... >19.5396 mag 1.95E+15 < 5.55E-05 Jy Broad-band upper limit inside NUV Kron aperture 2012GASC..C...0000S 1
2 NUV (GALEX) AB 19.4395 +/- 0.0888769 mag 1.29E+15 6.08E-05 +/- 4.98E-06 Jy Broad-band Kron flux in elliptical aperture 2012GASC..C...0000S 2
3 NUV (GALEX) AB 21.3831 +/- 0.159937 mag 1.29E+15 1.02E-05 +/- 1.50E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 3
4 J (2MASS/CTIO) ... >12.599 mag 2.43E+14 < 1.46E-02 Jy Broad-band 2006AJ....131.1163S 4
5 J (2MASS/CTIO) 13.324 +/- 0.099 mag 2.43E+14 7.46E-03 +/- 6.80E-04 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 5
6 J (2MASS/CTIO) 12.52 +/- 0.011 mag 2.43E+14 1.56E-02 +/- 1.59E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 6
7 J_14arcsec (2MASS) 12.066 +/- 0.009 mag 2.40E+14 2.37E-02 +/- 1.98E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 7
8 J 11.474 +/- 0.021 mag 2.40E+14 4.10E-02 +/- 8.00E-04 Jy Broad-band 61.2 x 17.1 arcsec integration area. 20032MASX.C.......: 8
9 J 11.335 +/- 0.033 mag 2.40E+14 4.66E-02 +/- 1.44E-03 Jy Broad-band 20032MASX.C.......: 9
10 H 10.781 +/- 0.027 mag 1.82E+14 4.99E-02 +/- 1.26E-03 Jy Broad-band 61.2 x 17.1 arcsec integration area. 20032MASX.C.......: 10
11 H_14arcsec (2MASS) 11.342 +/- 0.010 mag 1.82E+14 2.98E-02 +/- 2.75E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 11
12 H 10.679 +/- 0.029 mag 1.82E+14 5.48E-02 +/- 1.48E-03 Jy Broad-band 20032MASX.C.......: 12
13 H (2MASS/CTIO) 12.579 +/- 0.125 mag 1.80E+14 9.52E-03 +/- 1.10E-03 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 13
14 H (2MASS/CTIO) 11.88 +/- 0.009 mag 1.80E+14 1.81E-02 +/- 1.50E-04 Jy Broad-band 4" aperture; Confusion 2006AJ....131.1163S 14
15 H (2MASS/CTIO) 13.612 +/- 0.067 mag 1.80E+14 3.68E-03 +/- 2.27E-04 Jy Broad-band Profile-fit; Poor quality; Confusion 2006AJ....131.1163S 15
16 H (2MASS/CTIO) 11.758 +/- 0.01 mag 1.80E+14 2.03E-02 +/- 1.87E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 16
17 K_s (2MASS/CTIO) 12.003 +/- 0.088 mag 1.39E+14 1.05E-02 +/- 8.54E-04 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 17
18 K_s (2MASS/CTIO) ... >11.611 mag 1.39E+14 < 1.51E-02 Jy Broad-band 2006AJ....131.1163S 18
19 K_s (2MASS/CTIO) 11.405 +/- 0.025 mag 1.39E+14 1.83E-02 +/- 4.21E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 19
20 K_s 10.464 +/- 0.040 mag 1.38E+14 4.35E-02 +/- 1.63E-03 Jy Broad-band 61.2 x 17.1 arcsec integration area. 20032MASX.C.......: 20
21 K_s 10.387 +/- 0.035 mag 1.38E+14 4.67E-02 +/- 1.53E-03 Jy Broad-band 20032MASX.C.......: 21
22 K_s_14arcsec (2MASS) 10.993 +/- 0.014 mag 1.38E+14 2.67E-02 +/- 3.47E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 22


Detailed Information for Each Entry

 No. 1
Reference Code : 2012GASC..C...0000S
Freq. targeted : FUV (GALEX) AB      
Measurement    : >19.5396     mag                  < 5.55E-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: 194.25302729006 -13.71938056732 (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 : 19.4395 mag = 6.08E-31 W m^-2^ Hz^-1^ Uncertainty : 0.0888769 mag = 4.98E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 194.25302729006 -13.71938056732 (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 : 21.3831 mag = 1.02E-31 W m^-2^ Hz^-1^ Uncertainty : 0.159937 mag = 1.50E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 194.25302729006 -13.71938056732 (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 : >12.599 mag < 1.46E-28 W m^-2^ Hz^-1^ Uncertainty : Significance : 95% confidence 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 :
No. 5 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 13.324 mag = 7.46E-29 W m^-2^ Hz^-1^ Uncertainty : 0.099 mag = 6.80E-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. 6 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 12.52 mag = 1.56E-28 W m^-2^ Hz^-1^ Uncertainty : 0.011 mag = 1.59E-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. 7 Reference Code : 20032MASX.C.......: Freq. targeted : J_14arcsec (2MASS) Measurement : 12.066 mag = 2.37E-28 W m^-2^ Hz^-1^ Uncertainty : 0.009 mag = 1.98E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 125700.56 -134309.6 (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 : 11.474 mag = 4.10E-28 W m^-2^ Hz^-1^ Uncertainty : 0.021 mag = 8.00E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 125700.56 -134309.6 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 61.2 x 17.1 arcsec integration area.
No. 9 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 11.335 mag = 4.66E-28 W m^-2^ Hz^-1^ Uncertainty : 0.033 mag = 1.44E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 125700.56 -134309.6 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 10 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 10.781 mag = 4.99E-28 W m^-2^ Hz^-1^ Uncertainty : 0.027 mag = 1.26E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 125700.56 -134309.6 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 61.2 x 17.1 arcsec integration area.
No. 11 Reference Code : 20032MASX.C.......: Freq. targeted : H_14arcsec (2MASS) Measurement : 11.342 mag = 2.98E-28 W m^-2^ Hz^-1^ Uncertainty : 0.010 mag = 2.75E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 125700.56 -134309.6 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 12 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 10.679 mag = 5.48E-28 W m^-2^ Hz^-1^ Uncertainty : 0.029 mag = 1.48E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 125700.56 -134309.6 (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 : 12.579 mag = 9.52E-29 W m^-2^ Hz^-1^ Uncertainty : 0.125 mag = 1.10E-29 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. 14 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 11.88 mag = 1.81E-28 W m^-2^ Hz^-1^ Uncertainty : 0.009 mag = 1.50E-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; Confusion
No. 15 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 13.612 mag = 3.68E-29 W m^-2^ Hz^-1^ Uncertainty : 0.067 mag = 2.27E-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; Confusion
No. 16 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 11.758 mag = 2.03E-28 W m^-2^ Hz^-1^ Uncertainty : 0.01 mag = 1.87E-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. 17 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 12.003 mag = 1.05E-28 W m^-2^ Hz^-1^ Uncertainty : 0.088 mag = 8.54E-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; Poor quality
No. 18 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : >11.611 mag < 1.51E-28 W m^-2^ Hz^-1^ Uncertainty : Significance : 95% confidence 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 :
No. 19 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 11.405 mag = 1.83E-28 W m^-2^ Hz^-1^ Uncertainty : 0.025 mag = 4.21E-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 : 20032MASX.C.......: Freq. targeted : K_s Measurement : 10.464 mag = 4.35E-28 W m^-2^ Hz^-1^ Uncertainty : 0.040 mag = 1.63E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 125700.56 -134309.6 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 61.2 x 17.1 arcsec integration area.
No. 21 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 10.387 mag = 4.67E-28 W m^-2^ Hz^-1^ Uncertainty : 0.035 mag = 1.53E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 125700.56 -134309.6 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 22 Reference Code : 20032MASX.C.......: Freq. targeted : K_s_14arcsec (2MASS) Measurement : 10.993 mag = 2.67E-28 W m^-2^ Hz^-1^ Uncertainty : 0.014 mag = 3.47E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 125700.56 -134309.6 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.

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