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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 Units				Homogenized Units [Frequency, Flux Density]
No.	Observed Passband	Measurement	Uncertainty	Units	Freq (Hz)	Measurement	Uncertainty	Units	Mode	Aperture/Qualifiers	Reference Code	No.
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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