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Date and Time of the Query: 2019-03-19 T14:46:02 PDT
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Spectral Energy Distribution (SED) for NGC 4950:

27 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 ... >20.1729 mag 1.95E+15 < 3.10E-05 Jy Broad-band upper limit inside NUV Kron aperture 2012GASC..C...0000S 1
2 FUV (GALEX) AB 24.8423 +/- 6.17386 mag 1.95E+15 4.20E-07 +/- 2.39E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 2
3 NUV (GALEX) AB 20.3388 +/- 0.259389 mag 1.29E+15 2.66E-05 +/- 6.35E-06 Jy Broad-band Kron flux in elliptical aperture 2012GASC..C...0000S 3
4 NUV (GALEX) AB 21.3075 +/- 0.299529 mag 1.29E+15 1.09E-05 +/- 3.00E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 4
5 B (Cousins) (B_26) 15.02 +/- 0.09 mag 6.81E+14 4.20E-03 +/- 3.63E-04 Jy Broad-band 1989ESOLV.C...0000L 5
6 B (Cousins) (B_T) 14.94 +/- 0.09 mag 6.81E+14 4.52E-03 +/- 3.91E-04 Jy Broad-band 1989ESOLV.C...0000L 6
7 B (m_B) 14.89 +/- 0.21 mag 6.81E+14 4.71E-03 +/- 1.01E-03 Jy Broad-band 1991RC3.9.C...0000d 7
8 B (Cousins) (B_25) 15.11 +/- 0.09 mag 6.81E+14 3.85E-03 +/- 3.32E-04 Jy Broad-band 1989ESOLV.C...0000L 8
9 B (m_B^0) 14.46 ... mag 6.81E+14 7.01E-03 ... Jy Broad-band 1991RC3.9.C...0000d 9
10 R (Cousins) (R_T) 13.20 +/- 0.09 mag 4.68E+14 1.61E-02 +/- 1.39E-03 Jy Broad-band 1989ESOLV.C...0000L 10
11 R (Cousins) (R_25) 13.57 +/- 0.09 mag 4.68E+14 1.15E-02 +/- 9.96E-04 Jy Broad-band 1989ESOLV.C...0000L 11
12 R (Cousins) (R_26) 13.46 +/- 0.09 mag 4.68E+14 1.28E-02 +/- 1.10E-03 Jy Broad-band 1989ESOLV.C...0000L 12
13 J (2MASS/CTIO) 13.01 +/- 0.017 mag 2.43E+14 9.97E-03 +/- 1.56E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 13
14 J (2MASS/CTIO) 13.586 +/- 0.082 mag 2.43E+14 5.86E-03 +/- 4.43E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 14
15 J_14arcsec (2MASS) 12.514 +/- 0.014 mag 2.40E+14 1.57E-02 +/- 2.04E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 15
16 J 11.736 +/- 0.039 mag 2.40E+14 3.22E-02 +/- 1.18E-03 Jy Broad-band 20032MASX.C.......: 16
17 J 11.869 +/- 0.034 mag 2.40E+14 2.85E-02 +/- 9.06E-04 Jy Broad-band 45.6 x 31.0 arcsec integration area. 20032MASX.C.......: 17
18 H 11.158 +/- 0.039 mag 1.82E+14 3.52E-02 +/- 1.29E-03 Jy Broad-band 45.6 x 31.0 arcsec integration area. 20032MASX.C.......: 18
19 H_14arcsec (2MASS) 11.781 +/- 0.014 mag 1.82E+14 1.99E-02 +/- 2.58E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 19
20 H 11.111 +/- 0.043 mag 1.82E+14 3.68E-02 +/- 1.49E-03 Jy Broad-band 20032MASX.C.......: 20
21 H (2MASS/CTIO) 13.075 +/- 0.107 mag 1.80E+14 6.03E-03 +/- 5.94E-04 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 21
22 H (2MASS/CTIO) 12.267 +/- 0.02 mag 1.80E+14 1.27E-02 +/- 2.34E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 22
23 K_s (2MASS/CTIO) 12.544 +/- 0.089 mag 1.39E+14 6.40E-03 +/- 5.25E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 23
24 K_s (2MASS/CTIO) 11.996 +/- 0.022 mag 1.39E+14 1.06E-02 +/- 2.15E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 24
25 K_s 10.818 +/- 0.069 mag 1.38E+14 3.14E-02 +/- 2.06E-03 Jy Broad-band 45.6 x 31.0 arcsec integration area. 20032MASX.C.......: 25
26 K_s 10.620 +/- 0.060 mag 1.38E+14 3.77E-02 +/- 2.14E-03 Jy Broad-band 20032MASX.C.......: 26
27 K_s_14arcsec (2MASS) 11.507 +/- 0.023 mag 1.38E+14 1.66E-02 +/- 3.56E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 27


Detailed Information for Each Entry

 No. 1
Reference Code : 2012GASC..C...0000S
Freq. targeted : FUV (GALEX) AB      
Measurement    : >20.1729     mag                  < 3.10E-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: 196.40106712671 -43.49997424316 (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 : FUV (GALEX) AB Measurement : 24.8423 mag = 4.20E-33 W m^-2^ Hz^-1^ Uncertainty : 6.17386 mag = 2.39E-32 Significance : uncertainty Freq or Vel. : 1538.6 A (OBS )= 1.95E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 196.40106712671 -43.49997424316 (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 : 20.3388 mag = 2.66E-31 W m^-2^ Hz^-1^ Uncertainty : 0.259389 mag = 6.35E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 196.40106712671 -43.49997424316 (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 : 21.3075 mag = 1.09E-31 W m^-2^ Hz^-1^ Uncertainty : 0.299529 mag = 3.00E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 196.40106712671 -43.49997424316 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Flux in 7.5 arcsec diameter aperture
No. 5 Reference Code : 1989ESOLV.C...0000L Freq. targeted : B (Cousins) (B_26) Measurement : 15.02 mag = 4.20E-29 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 3.63E-30 Significance : typical accuracy Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 130245 -4314.0 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 6 Reference Code : 1989ESOLV.C...0000L Freq. targeted : B (Cousins) (B_T) Measurement : 14.94 mag = 4.52E-29 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 3.90E-30 Significance : typical accuracy Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 130245 -4314.0 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 7 Reference Code : 1991RC3.9.C...0000d Freq. targeted : B (m_B) Measurement : 14.89 mag = 4.71E-29 W m^-2^ Hz^-1^ Uncertainty : 0.21 mag = 1.01E-29 Significance : rms uncertainty Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130245.0 -431400 (B1950) Spatial mode : Multiple methods Notes : Homogenized from new and previously published data; Standard Johnson UBVRI filters assumed Qualifiers :
No. 8 Reference Code : 1989ESOLV.C...0000L Freq. targeted : B (Cousins) (B_25) Measurement : 15.11 mag = 3.85E-29 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 3.32E-30 Significance : typical accuracy Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 130245 -4314.0 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 9 Reference Code : 1991RC3.9.C...0000d Freq. targeted : B (m_B^0) Measurement : 14.46 mag = 7.01E-29 W m^-2^ Hz^-1^ Uncertainty : mag = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130245.0 -431400 (B1950) Spatial mode : Multiple methods Notes : Homogenized from new and previously published data; Extinction-corrected for internal and Milky Way and K-correction applied; Standard Johnson UBVRI filters assumed Qualifiers :
No. 10 Reference Code : 1989ESOLV.C...0000L Freq. targeted : R (Cousins) (R_T) Measurement : 13.20 mag = 1.61E-28 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 1.39E-29 Significance : typical accuracy Freq or Vel. : 6400 A (OBS )= 4.68E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 130245 -4314.0 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 11 Reference Code : 1989ESOLV.C...0000L Freq. targeted : R (Cousins) (R_25) Measurement : 13.57 mag = 1.15E-28 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 9.96E-30 Significance : typical accuracy Freq or Vel. : 6400 A (OBS )= 4.68E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 130245 -4314.0 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 12 Reference Code : 1989ESOLV.C...0000L Freq. targeted : R (Cousins) (R_26) Measurement : 13.46 mag = 1.28E-28 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 1.10E-29 Significance : typical accuracy Freq or Vel. : 6400 A (OBS )= 4.68E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 130245 -4314.0 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 13 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 13.01 mag = 9.97E-29 W m^-2^ Hz^-1^ Uncertainty : 0.017 mag = 1.56E-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. 14 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 13.586 mag = 5.86E-29 W m^-2^ Hz^-1^ Uncertainty : 0.082 mag = 4.43E-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. 15 Reference Code : 20032MASX.C.......: Freq. targeted : J_14arcsec (2MASS) Measurement : 12.514 mag = 1.57E-28 W m^-2^ Hz^-1^ Uncertainty : 0.014 mag = 2.04E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130536.52 -433001.9 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 16 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 11.736 mag = 3.22E-28 W m^-2^ Hz^-1^ Uncertainty : 0.039 mag = 1.18E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130536.52 -433001.9 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 17 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 11.869 mag = 2.85E-28 W m^-2^ Hz^-1^ Uncertainty : 0.034 mag = 9.06E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130536.52 -433001.9 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 45.6 x 31.0 arcsec integration area.
No. 18 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 11.158 mag = 3.52E-28 W m^-2^ Hz^-1^ Uncertainty : 0.039 mag = 1.29E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130536.52 -433001.9 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 45.6 x 31.0 arcsec integration area.
No. 19 Reference Code : 20032MASX.C.......: Freq. targeted : H_14arcsec (2MASS) Measurement : 11.781 mag = 1.99E-28 W m^-2^ Hz^-1^ Uncertainty : 0.014 mag = 2.58E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130536.52 -433001.9 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 20 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 11.111 mag = 3.68E-28 W m^-2^ Hz^-1^ Uncertainty : 0.043 mag = 1.49E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130536.52 -433001.9 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 21 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 13.075 mag = 6.03E-29 W m^-2^ Hz^-1^ Uncertainty : 0.107 mag = 5.94E-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. 22 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 12.267 mag = 1.27E-28 W m^-2^ Hz^-1^ Uncertainty : 0.02 mag = 2.34E-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. 23 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 12.544 mag = 6.40E-29 W m^-2^ Hz^-1^ Uncertainty : 0.089 mag = 5.25E-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. 24 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 11.996 mag = 1.06E-28 W m^-2^ Hz^-1^ Uncertainty : 0.022 mag = 2.15E-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. 25 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 10.818 mag = 3.14E-28 W m^-2^ Hz^-1^ Uncertainty : 0.069 mag = 2.06E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130536.52 -433001.9 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 45.6 x 31.0 arcsec integration area.
No. 26 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 10.620 mag = 3.77E-28 W m^-2^ Hz^-1^ Uncertainty : 0.060 mag = 2.14E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130536.52 -433001.9 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 27 Reference Code : 20032MASX.C.......: Freq. targeted : K_s_14arcsec (2MASS) Measurement : 11.507 mag = 1.66E-28 W m^-2^ Hz^-1^ Uncertainty : 0.023 mag = 3.56E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130536.52 -433001.9 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.

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