NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-26 T11:36:34 PDT
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Spectral Energy Distribution (SED) for NGC 4947A:

31 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 17.0818 +/- 0.0657149 mag 1.95E+15 5.34E-04 +/- 3.23E-05 Jy Broad-band Kron flux in elliptical aperture 2012GASC..C...0000S 1
2 FUV (GALEX) AB 21.4314 +/- 0.618703 mag 1.95E+15 9.72E-06 +/- 5.54E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 2
3 NUV (GALEX) AB 16.6063 +/- 0.0314382 mag 1.29E+15 8.27E-04 +/- 2.39E-05 Jy Broad-band Kron flux in elliptical aperture 2012GASC..C...0000S 3
4 NUV (GALEX) AB 20.7839 +/- 0.227763 mag 1.29E+15 1.76E-05 +/- 3.70E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 4
5 B (Cousins) (B_26) 15.15 +/- 0.09 mag 6.81E+14 3.69E-03 +/- 3.19E-04 Jy Broad-band 1989ESOLV.C...0000L 5
6 B (Cousins) (B_T) 15.06 +/- 0.09 mag 6.81E+14 4.02E-03 +/- 3.48E-04 Jy Broad-band 1989ESOLV.C...0000L 6
7 B (m_B) 15.01 +/- 0.21 mag 6.81E+14 4.22E-03 +/- 9.01E-04 Jy Broad-band 1991RC3.9.C...0000d 7
8 B (Cousins) (B_25) 15.30 +/- 0.09 mag 6.81E+14 3.24E-03 +/- 2.80E-04 Jy Broad-band 1989ESOLV.C...0000L 8
9 B (m_B^0) 14.47 ... mag 6.81E+14 6.94E-03 ... Jy Broad-band 1991RC3.9.C...0000d 9
10 V (Cousins) 14.05 +/- 0.05 mag 5.42E+14 8.73E-03 +/- 4.12E-04 Jy Broad-band Flux within I=23.5 mag/arcsec^2 isophote 1992ApJS...81...35H 10
11 R (Cousins) (R_T) 14.46 +/- 0.09 mag 4.68E+14 5.06E-03 +/- 4.37E-04 Jy Broad-band 1989ESOLV.C...0000L 11
12 R (Cousins) (R_25) 14.61 +/- 0.09 mag 4.68E+14 4.40E-03 +/- 3.80E-04 Jy Broad-band 1989ESOLV.C...0000L 12
13 R (Cousins) (R_26) 14.48 +/- 0.09 mag 4.68E+14 4.97E-03 +/- 4.29E-04 Jy Broad-band 1989ESOLV.C...0000L 13
14 I_t_ 13.37 ... mag 3.80E+14 1.07E-02 ... Jy Broad-band 1997AJ....113...22G 14
15 I_corr_ 13.10 +/- 0.08 mag 3.80E+14 1.37E-02 +/- 5.20E-03 Jy Broad-band 1997AJ....113...22G 15
16 I (Cousins) (I_23.5) 13.26 +/- 0.05 mag 3.80E+14 1.27E-02 +/- 5.97E-04 Jy Broad-band 1992ApJS...81...35H 16
17 I_t_ (Kron-Cousins) 13.46 +/- 5 % mag 3.80E+14 9.83E-03 +/- 4.92E-04 Jy Broad-band 1996ApJS..107...97M 17
18 I (Cousins) (I_T) 12.91 +/- 0.05 mag 3.80E+14 1.75E-02 +/- 8.24E-04 Jy Broad-band 1992ApJS...81...35H 18
19 I_tot_ (Cousins) 13.5 ... mag 3.79E+14 1.01E-02 ... Jy Broad-band mag extrapolated to 8 opt scale lengths 2005AJ....129.2119S 19
20 I 13.44 +/- 0.12 mag 3.79E+14 1.07E-02 +/- 1.19E-03 Jy Broad-band Observed magnitude 2007ApJS..172..599S 20
21 I 12.95 ... mag 3.79E+14 1.69E-02 ... Jy Broad-band 2007ApJS..172..599S 21
22 J_14arcsec (2MASS) 14.787 +/- 0.105 mag 2.40E+14 1.94E-03 +/- 1.97E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 22
23 J 14.481 +/- 0.141 mag 2.40E+14 2.57E-03 +/- 3.56E-04 Jy Broad-band 20032MASX.C.......: 23
24 J 14.795 +/- 0.112 mag 2.40E+14 1.92E-03 +/- 2.09E-04 Jy Broad-band 17.6 x 11.6 arcsec integration area. 20032MASX.C.......: 24
25 H_14arcsec (2MASS) 13.956 +/- 0.103 mag 1.82E+14 2.68E-03 +/- 2.67E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 25
26 H 13.609 +/- 0.134 mag 1.82E+14 3.69E-03 +/- 4.84E-04 Jy Broad-band 20032MASX.C.......: 26
27 H 13.950 +/- 0.105 mag 1.82E+14 2.69E-03 +/- 2.73E-04 Jy Broad-band 17.6 x 11.6 arcsec integration area. 20032MASX.C.......: 27
28 K_s_14arcsec (2MASS) 13.905 +/- 0.186 mag 1.38E+14 1.83E-03 +/- 3.42E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 28
29 K_s 13.713 +/- 0.279 mag 1.38E+14 2.18E-03 +/- 6.39E-04 Jy Broad-band 20032MASX.C.......: 29
30 K_s 13.885 +/- 0.186 mag 1.38E+14 1.86E-03 +/- 3.48E-04 Jy Broad-band 17.6 x 11.6 arcsec integration area. 20032MASX.C.......: 30
31 HI (21 cm line) ... <7.20 Jy km s^-1^ 1.42E+09 < 3.38E+04 Jy-Hz Line 1989H&RHI.C...0000H 31


Detailed Information for Each Entry

 No. 1
Reference Code : 2012GASC..C...0000S
Freq. targeted : FUV (GALEX) AB      
Measurement    :  17.0818     mag                  = 5.34E-30 W m^-2^ Hz^-1^
Uncertainty    :  0.0657149   mag                  = 3.23E-31
Significance   : uncertainty
Freq or Vel.   : 1538.6       A            (OBS   )= 1.95E+15 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 196.08672676416 -35.22827439249 (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 : 21.4314 mag = 9.72E-32 W m^-2^ Hz^-1^ Uncertainty : 0.618703 mag = 5.54E-32 Significance : uncertainty Freq or Vel. : 1538.6 A (OBS )= 1.95E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 196.08672676416 -35.22827439249 (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 : 16.6063 mag = 8.27E-30 W m^-2^ Hz^-1^ Uncertainty : 0.0314382 mag = 2.39E-31 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 196.08672676416 -35.22827439249 (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 : 20.7839 mag = 1.76E-31 W m^-2^ Hz^-1^ Uncertainty : 0.227763 mag = 3.70E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 196.08672676416 -35.22827439249 (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 : 15.15 mag = 3.69E-29 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 3.19E-30 Significance : typical accuracy Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 130134 -3457.6 (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 : 15.06 mag = 4.02E-29 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 3.48E-30 Significance : typical accuracy Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 130134 -3457.6 (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 : 15.01 mag = 4.22E-29 W m^-2^ Hz^-1^ Uncertainty : 0.21 mag = 9.01E-30 Significance : rms uncertainty Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130134.0 -345736 (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 : 15.30 mag = 3.24E-29 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 2.80E-30 Significance : typical accuracy Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 130134 -3457.6 (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 : 14.47 mag = 6.94E-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: 130134.0 -345736 (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 : 1992ApJS...81...35H Freq. targeted : V (Cousins) Measurement : 14.05 mag = 8.73E-29 W m^-2^ Hz^-1^ Uncertainty : 0.05 mag = 4.12E-30 Significance : rms uncertainty Freq or Vel. : 5530 A (OBS )= 5.42E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: Spatial mode : Flux integrated from map Notes : From new raw data; Extinction-corrected for internal and Milky Way and K-correction applied; derived from a flux in a different band and a color Qualifiers : Flux within I=23.5 mag/arcsec^2 isophote
No. 11 Reference Code : 1989ESOLV.C...0000L Freq. targeted : R (Cousins) (R_T) Measurement : 14.46 mag = 5.06E-29 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 4.37E-30 Significance : typical accuracy Freq or Vel. : 6400 A (OBS )= 4.68E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 130134 -3457.6 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 12 Reference Code : 1989ESOLV.C...0000L Freq. targeted : R (Cousins) (R_25) Measurement : 14.61 mag = 4.40E-29 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 3.80E-30 Significance : typical accuracy Freq or Vel. : 6400 A (OBS )= 4.68E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 130134 -3457.6 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 13 Reference Code : 1989ESOLV.C...0000L Freq. targeted : R (Cousins) (R_26) Measurement : 14.48 mag = 4.97E-29 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 4.29E-30 Significance : typical accuracy Freq or Vel. : 6400 A (OBS )= 4.68E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 130134 -3457.6 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 14 Reference Code : 1997AJ....113...22G Freq. targeted : I_t_ Measurement : 13.37 mag = 1.07E-28 W m^-2^ Hz^-1^ Uncertainty : mag = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 8060 A (OBS )= 3.80E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130134.0 -345735. (B1950) Spatial mode : Total flux Notes : Averaged new and previously published data; Corrected for contaminating foreground stars Qualifiers :
No. 15 Reference Code : 1997AJ....113...22G Freq. targeted : I_corr_ Measurement : 13.10 mag = 1.37E-28 W m^-2^ Hz^-1^ Uncertainty : 0.08 mag = 5.20E-29 Significance : uncertainty Freq or Vel. : 8060 A (OBS )= 3.80E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130134.0 -345735. (B1950) Spatial mode : Total flux Notes : Averaged new and previously published data; Extinction-corrected for internal and Milky Way and K-correction applied Qualifiers :
No. 16 Reference Code : 1992ApJS...81...35H Freq. targeted : I (Cousins) (I_23.5) Measurement : 13.26 mag = 1.27E-28 W m^-2^ Hz^-1^ Uncertainty : 0.05 mag = 5.97E-30 Significance : rms uncertainty Freq or Vel. : 7900 A (OBS )= 3.80E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: Spatial mode : Flux integrated from map Notes : From new raw data; Extinction-corrected for internal and Milky Way and K-correction applied Qualifiers :
No. 17 Reference Code : 1996ApJS..107...97M Freq. targeted : I_t_ (Kron-Cousins) Measurement : 13.46 mag = 9.83E-29 W m^-2^ Hz^-1^ Uncertainty : 5 % mag = 4.92E-30 Significance : estimated error Freq or Vel. : 8060 A (OBS )= 3.80E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130134 -345736 (B1950) Spatial mode : From multi-aperture data Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 18 Reference Code : 1992ApJS...81...35H Freq. targeted : I (Cousins) (I_T) Measurement : 12.91 mag = 1.75E-28 W m^-2^ Hz^-1^ Uncertainty : 0.05 mag = 8.24E-30 Significance : rms uncertainty Freq or Vel. : 7900 A (OBS )= 3.80E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: Spatial mode : Modelled datum Notes : From new raw data; Extinction-corrected for internal and Milky Way and K-correction applied Qualifiers :
No. 19 Reference Code : 2005AJ....129.2119S Freq. targeted : I_tot_ (Cousins) Measurement : 13.5 mag = 1.01E-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: 13 04 20.4 -35 13 39 (J2000) Spatial mode : Total flux Notes : From new raw data Qualifiers : mag extrapolated to 8 opt scale lengths
No. 20 Reference Code : 2007ApJS..172..599S Freq. targeted : I Measurement : 13.44 mag = 1.07E-28 W m^-2^ Hz^-1^ Uncertainty : 0.12 mag = 1.19E-29 Significance : uncertainty Freq or Vel. : 7900 A (OBS )= 3.79E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 13 04 20.4 -35 13 39 (J2000) Spatial mode : Total flux Notes : Averaged new and previously published data; Standard Cousins R_C, I_C filters assumed Qualifiers : Observed magnitude
No. 21 Reference Code : 2007ApJS..172..599S Freq. targeted : I Measurement : 12.95 mag = 1.69E-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: 13 04 20.4 -35 13 39 (J2000) Spatial mode : Total flux Notes : Averaged new and previously published data; Extinction-corrected for Milky Way; Standard Cousins R_C, I_C filters assumed Qualifiers :
No. 22 Reference Code : 20032MASX.C.......: Freq. targeted : J_14arcsec (2MASS) Measurement : 14.787 mag = 1.94E-29 W m^-2^ Hz^-1^ Uncertainty : 0.105 mag = 1.97E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130420.83 -351340.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 23 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 14.481 mag = 2.57E-29 W m^-2^ Hz^-1^ Uncertainty : 0.141 mag = 3.56E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130420.83 -351340.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 24 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 14.795 mag = 1.92E-29 W m^-2^ Hz^-1^ Uncertainty : 0.112 mag = 2.09E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130420.83 -351340.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 17.6 x 11.6 arcsec integration area.
No. 25 Reference Code : 20032MASX.C.......: Freq. targeted : H_14arcsec (2MASS) Measurement : 13.956 mag = 2.68E-29 W m^-2^ Hz^-1^ Uncertainty : 0.103 mag = 2.67E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130420.83 -351340.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 26 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 13.609 mag = 3.69E-29 W m^-2^ Hz^-1^ Uncertainty : 0.134 mag = 4.84E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130420.83 -351340.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 27 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 13.950 mag = 2.69E-29 W m^-2^ Hz^-1^ Uncertainty : 0.105 mag = 2.73E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130420.83 -351340.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 17.6 x 11.6 arcsec integration area.
No. 28 Reference Code : 20032MASX.C.......: Freq. targeted : K_s_14arcsec (2MASS) Measurement : 13.905 mag = 1.83E-29 W m^-2^ Hz^-1^ Uncertainty : 0.186 mag = 3.42E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130420.83 -351340.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 29 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 13.713 mag = 2.18E-29 W m^-2^ Hz^-1^ Uncertainty : 0.279 mag = 6.39E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130420.83 -351340.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 30 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 13.885 mag = 1.86E-29 W m^-2^ Hz^-1^ Uncertainty : 0.186 mag = 3.48E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 130420.83 -351340.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 17.6 x 11.6 arcsec integration area.
No. 31 Reference Code : 1989H&RHI.C...0000H Freq. targeted : HI (21 cm line) Measurement : <7.20 Jy km s^-1^ < 3.38E-22 W m^-2^ Uncertainty : Significance : no uncertainty reported Freq or Vel. : 21 cm (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; not detected Coord. targeted: 130134.0 -345736. (B1950) Spatial mode : Not reported in paper Notes : Transformed from previously published data Qualifiers :

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