NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-17 T11:35:57 PDT
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Spectral Energy Distribution (SED) for NGC 2947:

30 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 15.7428 +/- 0.0305033 mag 1.95E+15 1.83E-03 +/- 5.15E-05 Jy Broad-band Kron flux in elliptical aperture 2012GASC..C...0000S 1
2 FUV (GALEX) AB 20.9238 +/- 0.445125 mag 1.95E+15 1.55E-05 +/- 6.36E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 2
3 NUV (GALEX) AB 15.3051 +/- 0.0143321 mag 1.29E+15 2.74E-03 +/- 3.62E-05 Jy Broad-band Kron flux in elliptical aperture 2012GASC..C...0000S 3
4 NUV (GALEX) AB 19.7841 +/- 0.132008 mag 1.29E+15 4.43E-05 +/- 5.38E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 4
5 B_J 13.4300 ... mag 6.41E+14 1.68E-02 ... Jy Broad-band 2005MNRAS.361...34D 5
6 R 13.2176 ... mag 4.68E+14 1.59E-02 ... Jy Broad-band 2005MNRAS.361...34D 6
7 I 13.0548 ... mag 3.79E+14 1.53E-02 ... Jy Broad-band 2005MNRAS.361...34D 7
8 J (2MASS/CTIO) 13.21 +/- 0.013 mag 2.43E+14 8.29E-03 +/- 9.92E-05 Jy Broad-band 4" aperture 2006AJ....131.1163S 8
9 J (2MASS/CTIO) 13.988 +/- 0.118 mag 2.43E+14 4.05E-03 +/- 4.40E-04 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 9
10 J_14arcsec (2MASS) 12.416 +/- 0.012 mag 2.40E+14 1.72E-02 +/- 1.91E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 10
11 J 11.004 +/- 0.023 mag 2.40E+14 6.31E-02 +/- 1.35E-03 Jy Broad-band 60.6 x 46.1 arcsec integration area. 20032MASX.C.......: 11
12 J 10.888 +/- 0.026 mag 2.40E+14 7.03E-02 +/- 1.70E-03 Jy Broad-band 20032MASX.C.......: 12
13 H 10.335 +/- 0.032 mag 1.82E+14 7.52E-02 +/- 2.25E-03 Jy Broad-band 60.6 x 46.1 arcsec integration area. 20032MASX.C.......: 13
14 H_14arcsec (2MASS) 11.748 +/- 0.015 mag 1.82E+14 2.05E-02 +/- 2.85E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 14
15 H 10.193 +/- 0.030 mag 1.82E+14 8.57E-02 +/- 2.40E-03 Jy Broad-band 20032MASX.C.......: 15
16 H (2MASS/CTIO) 13.3 +/- 0.141 mag 1.80E+14 4.90E-03 +/- 6.36E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 16
17 H (2MASS/CTIO) 12.505 +/- 0.008 mag 1.80E+14 1.02E-02 +/- 7.51E-05 Jy Broad-band 4" aperture 2006AJ....131.1163S 17
18 K_s (2MASS/CTIO) 12.224 +/- 0.011 mag 1.39E+14 8.60E-03 +/- 8.71E-05 Jy Broad-band 4" aperture 2006AJ....131.1163S 18
19 K_s (2MASS/CTIO) 12.945 +/- 0.095 mag 1.39E+14 4.43E-03 +/- 3.87E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 19
20 K_s 10.086 +/- 0.056 mag 1.38E+14 6.16E-02 +/- 3.26E-03 Jy Broad-band 60.6 x 46.1 arcsec integration area. 20032MASX.C.......: 20
21 K_s 9.955 +/- 0.050 mag 1.38E+14 6.95E-02 +/- 3.28E-03 Jy Broad-band 20032MASX.C.......: 21
22 K_s_14arcsec (2MASS) 11.484 +/- 0.024 mag 1.38E+14 1.70E-02 +/- 3.80E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 22
23 12 microns (IRAS) 9.854E-02 +/- 23 % Jy 2.50E+13 9.85E-02 +/- 2.27E-02 Jy Broad-band IRAS quality flag = 2 1990IRASF.C...0000M 23
24 25 microns (IRAS) 1.673E-01 +/- 18 % Jy 1.20E+13 1.67E-01 +/- 1.77E-02 Jy Broad-band IRAS quality flag = 2 1990IRASF.C...0000M 24
25 60 microns (IRAS) 1.143E+00 +/- 7 % Jy 5.00E+12 1.14E+00 +/- 8.00E-02 Jy Broad-band IRAS quality flag = 3 1990IRASF.C...0000M 25
26 100 microns (IRAS) 3.629E+00 +/- 10 % Jy 3.00E+12 3.63E+00 +/- 3.63E-01 Jy Broad-band IRAS quality flag = 2 1990IRASF.C...0000M 26
27 HI 21 cm line 5.47 ... Jy km s^-1^ 1.42E+09 2.57E+04 ... Jy-Hz Line Corrected line flux 2005ApJS..160..149S 27
28 HI line (Parkes) 9.3 ... Jy km s^-1^ 1.42E+09 4.36E+04 ... Jy-Hz Line 2005MNRAS.361...34D 28
29 HI 21 cm line 5.51 +/- 0.67 Jy km s^-1^ 1.42E+09 2.59E+04 +/- 3.14E+03 Jy-Hz Line Self-absorption corrected line flux 2005ApJS..160..149S 29
30 HI 21 cm line 5.16 ... Jy km s^-1^ 1.42E+09 2.42E+04 ... Jy-Hz Line 2005ApJS..160..149S 30


Detailed Information for Each Entry

 No. 1
Reference Code : 2012GASC..C...0000S
Freq. targeted : FUV (GALEX) AB      
Measurement    :  15.7428     mag                  = 1.83E-29 W m^-2^ Hz^-1^
Uncertainty    :  0.0305033   mag                  = 5.15E-31
Significance   : uncertainty
Freq or Vel.   : 1538.6       A            (OBS   )= 1.95E+15 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 144.02431044486 -12.43654343342 (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 : 20.9238 mag = 1.55E-31 W m^-2^ Hz^-1^ Uncertainty : 0.445125 mag = 6.36E-32 Significance : uncertainty Freq or Vel. : 1538.6 A (OBS )= 1.95E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 144.02431044486 -12.43654343342 (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 : 15.3051 mag = 2.74E-29 W m^-2^ Hz^-1^ Uncertainty : 0.0143321 mag = 3.62E-31 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 144.02431044486 -12.43654343342 (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 : 19.7841 mag = 4.43E-31 W m^-2^ Hz^-1^ Uncertainty : 0.132008 mag = 5.38E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 144.02431044486 -12.43654343342 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Flux in 7.5 arcsec diameter aperture
No. 5 Reference Code : 2005MNRAS.361...34D Freq. targeted : B_J Measurement : 13.4300 mag = 1.68E-28 W m^-2^ Hz^-1^ Uncertainty : mag = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 4680 A (OBS )= 6.41E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093605.7 -122614.5 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 6 Reference Code : 2005MNRAS.361...34D Freq. targeted : R Measurement : 13.2176 mag = 1.59E-28 W m^-2^ Hz^-1^ Uncertainty : mag = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 6400 A (OBS )= 4.68E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093605.7 -122614.5 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 7 Reference Code : 2005MNRAS.361...34D Freq. targeted : I Measurement : 13.0548 mag = 1.53E-28 W m^-2^ Hz^-1^ Uncertainty : mag = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 7900 A (OBS )= 3.79E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093605.7 -122614.5 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 8 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 13.21 mag = 8.29E-29 W m^-2^ Hz^-1^ Uncertainty : 0.013 mag = 9.92E-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. 9 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 13.988 mag = 4.05E-29 W m^-2^ Hz^-1^ Uncertainty : 0.118 mag = 4.40E-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. 10 Reference Code : 20032MASX.C.......: Freq. targeted : J_14arcsec (2MASS) Measurement : 12.416 mag = 1.72E-28 W m^-2^ Hz^-1^ Uncertainty : 0.012 mag = 1.91E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093605.83 -122611.9 (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 : J Measurement : 11.004 mag = 6.31E-28 W m^-2^ Hz^-1^ Uncertainty : 0.023 mag = 1.35E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093605.83 -122611.9 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 60.6 x 46.1 arcsec integration area.
No. 12 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 10.888 mag = 7.03E-28 W m^-2^ Hz^-1^ Uncertainty : 0.026 mag = 1.70E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093605.83 -122611.9 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 13 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 10.335 mag = 7.52E-28 W m^-2^ Hz^-1^ Uncertainty : 0.032 mag = 2.25E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093605.83 -122611.9 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 60.6 x 46.1 arcsec integration area.
No. 14 Reference Code : 20032MASX.C.......: Freq. targeted : H_14arcsec (2MASS) Measurement : 11.748 mag = 2.05E-28 W m^-2^ Hz^-1^ Uncertainty : 0.015 mag = 2.85E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093605.83 -122611.9 (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 : 10.193 mag = 8.57E-28 W m^-2^ Hz^-1^ Uncertainty : 0.030 mag = 2.40E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093605.83 -122611.9 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 16 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 13.3 mag = 4.90E-29 W m^-2^ Hz^-1^ Uncertainty : 0.141 mag = 6.36E-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. 17 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 12.505 mag = 1.02E-28 W m^-2^ Hz^-1^ Uncertainty : 0.008 mag = 7.51E-31 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 : K_s (2MASS/CTIO) Measurement : 12.224 mag = 8.60E-29 W m^-2^ Hz^-1^ Uncertainty : 0.011 mag = 8.71E-31 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. 19 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 12.945 mag = 4.43E-29 W m^-2^ Hz^-1^ Uncertainty : 0.095 mag = 3.87E-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. 20 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 10.086 mag = 6.16E-28 W m^-2^ Hz^-1^ Uncertainty : 0.056 mag = 3.26E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093605.83 -122611.9 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 60.6 x 46.1 arcsec integration area.
No. 21 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 9.955 mag = 6.95E-28 W m^-2^ Hz^-1^ Uncertainty : 0.050 mag = 3.28E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093605.83 -122611.9 (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 : 11.484 mag = 1.70E-28 W m^-2^ Hz^-1^ Uncertainty : 0.024 mag = 3.80E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093605.83 -122611.9 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 23 Reference Code : 1990IRASF.C...0000M Freq. targeted : 12 microns (IRAS) Measurement : 9.854E-02 Jy = 9.85E-28 W m^-2^ Hz^-1^ Uncertainty : 23 % Jy = 2.27E-28 Significance : uncertainty Freq or Vel. : 12 microns (OBS )= 2.50E+13 Hz Frequency mode : Broad-band measurement Coord. targeted: 093340.2 -121241 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 2
No. 24 Reference Code : 1990IRASF.C...0000M Freq. targeted : 25 microns (IRAS) Measurement : 1.673E-01 Jy = 1.67E-27 W m^-2^ Hz^-1^ Uncertainty : 18 % Jy = 1.77E-28 Significance : uncertainty Freq or Vel. : 25 microns (OBS )= 1.20E+13 Hz Frequency mode : Broad-band measurement Coord. targeted: 093340.2 -121241 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 2
No. 25 Reference Code : 1990IRASF.C...0000M Freq. targeted : 60 microns (IRAS) Measurement : 1.143E+00 Jy = 1.14E-26 W m^-2^ Hz^-1^ Uncertainty : 7 % Jy = 8.00E-28 Significance : uncertainty Freq or Vel. : 60 microns (OBS )= 5.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 093340.2 -121241 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 3
No. 26 Reference Code : 1990IRASF.C...0000M Freq. targeted : 100 microns (IRAS) Measurement : 3.629E+00 Jy = 3.63E-26 W m^-2^ Hz^-1^ Uncertainty : 10 % Jy = 3.63E-27 Significance : uncertainty Freq or Vel. : 100 microns (OBS )= 3.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 093340.2 -121241 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 2
No. 27 Reference Code : 2005ApJS..160..149S Freq. targeted : HI 21 cm line Measurement : 5.47 Jy km s^-1^ = 2.57E-22 W m^-2^ Uncertainty : Jy km s^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 2814 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 09 36 07.0 -12 26 27 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Corrected line flux
No. 28 Reference Code : 2005MNRAS.361...34D Freq. targeted : HI line (Parkes) Measurement : 9.3 Jy km s^-1^ = 4.36E-22 W m^-2^ Uncertainty : Jy km s^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 2791.0 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 093604.0 -122656. (J2000) Spatial mode : Flux integrated from map Notes : Averaged from previously published data Qualifiers :
No. 29 Reference Code : 2005ApJS..160..149S Freq. targeted : HI 21 cm line Measurement : 5.51 Jy km s^-1^ = 2.59E-22 W m^-2^ Uncertainty : 0.67 Jy km s^-1^ = 3.14E-23 Significance : uncertainty Freq or Vel. : 2814 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 09 36 07.0 -12 26 27 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Self-absorption corrected line flux
No. 30 Reference Code : 2005ApJS..160..149S Freq. targeted : HI 21 cm line Measurement : 5.16 Jy km s^-1^ = 2.42E-22 W m^-2^ Uncertainty : Jy km s^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 2814 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 09 36 07.0 -12 26 27 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :

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