NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-02-21 T21:47:47 PST
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Spectral Energy Distribution (SED) for NGC 7251:

29 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 15.9017 +/- 0.0181576 mag 1.95E+15 1.58E-03 +/- 2.65E-05 Jy Broad-band Kron flux in elliptical aperture 2012GASC..C...0000S 1
2 FUV (GALEX) AB 20.6141 +/- 0.194893 mag 1.95E+15 2.06E-05 +/- 3.70E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 2
3 NUV (GALEX) AB 15.4681 +/- 0.00943150 mag 1.29E+15 2.36E-03 +/- 2.05E-05 Jy Broad-band Kron flux in elliptical aperture 2012GASC..C...0000S 3
4 NUV (GALEX) AB 19.9749 +/- 0.0826415 mag 1.29E+15 3.72E-05 +/- 2.83E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 4
5 b_J 14.88 +/- 0.12 mag 6.41E+14 4.41E-03 +/- 5.16E-04 Jy Broad-band 1990MNRAS.243..692M 5
6 B_J 13.2555 ... mag 6.41E+14 1.97E-02 ... Jy Broad-band 2005MNRAS.361...34D 6
7 R 13.1093 ... mag 4.68E+14 1.76E-02 ... Jy Broad-band 2005MNRAS.361...34D 7
8 I 12.6772 ... mag 3.79E+14 2.17E-02 ... Jy Broad-band 2005MNRAS.361...34D 8
9 J (2MASS/CTIO) 14.054 +/- 0.125 mag 2.43E+14 3.81E-03 +/- 4.39E-04 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 9
10 J (2MASS/CTIO) 13.176 +/- 0.018 mag 2.43E+14 8.55E-03 +/- 1.42E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 10
11 J_14arcsec (2MASS) 12.339 +/- 0.010 mag 2.40E+14 1.85E-02 +/- 1.71E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 11
12 J 10.990 +/- 0.023 mag 2.40E+14 6.40E-02 +/- 1.37E-03 Jy Broad-band 57.8 x 55.5 arcsec integration area. 20032MASX.C.......: 12
13 J 10.857 +/- 0.026 mag 2.40E+14 7.23E-02 +/- 1.75E-03 Jy Broad-band 20032MASX.C.......: 13
14 H 10.317 +/- 0.034 mag 1.82E+14 7.65E-02 +/- 2.43E-03 Jy Broad-band 57.8 x 55.5 arcsec integration area. 20032MASX.C.......: 14
15 H_14arcsec (2MASS) 11.607 +/- 0.013 mag 1.82E+14 2.33E-02 +/- 2.81E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 15
16 H 10.163 +/- 0.030 mag 1.82E+14 8.81E-02 +/- 2.47E-03 Jy Broad-band 20032MASX.C.......: 16
17 H (2MASS/CTIO) 13.423 +/- 0.146 mag 1.80E+14 4.38E-03 +/- 5.88E-04 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 17
18 H (2MASS/CTIO) 12.451 +/- 0.018 mag 1.80E+14 1.07E-02 +/- 1.78E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 18
19 K_s (2MASS/CTIO) 12.77 +/- 0.097 mag 1.39E+14 5.20E-03 +/- 4.65E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 19
20 K_s (2MASS/CTIO) 12.178 +/- 0.016 mag 1.39E+14 8.97E-03 +/- 1.32E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 20
21 K_s 9.879 +/- 0.043 mag 1.38E+14 7.45E-02 +/- 3.01E-03 Jy Broad-band 20032MASX.C.......: 21
22 K_s_14arcsec (2MASS) 11.367 +/- 0.018 mag 1.38E+14 1.89E-02 +/- 3.16E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 22
23 K_s 10.025 +/- 0.046 mag 1.38E+14 6.52E-02 +/- 2.82E-03 Jy Broad-band 57.8 x 55.5 arcsec integration area. 20032MASX.C.......: 23
24 12 microns (IRAS) ... <1.285E-01 Jy 2.50E+13 < 1.29E-01 Jy Broad-band 1990IRASF.C...0000M 24
25 25 microns (IRAS) ... <1.664E-01 Jy 1.20E+13 < 1.66E-01 Jy Broad-band 1990IRASF.C...0000M 25
26 60 microns (IRAS) 7.305E-01 +/- 11 % Jy 5.00E+12 7.31E-01 +/- 8.04E-02 Jy Broad-band IRAS quality flag = 3 1990IRASF.C...0000M 26
27 100 microns (IRAS) 2.338E+00 +/- 8 % Jy 3.00E+12 2.34E+00 +/- 1.87E-01 Jy Broad-band IRAS quality flag = 2 1990IRASF.C...0000M 27
28 HI 21cm line Parkes 13.5 +/- 2.9 Jy km/s 1.42E+09 6.27E+04 +/- 1.35E+04 Jy-Hz Line 2004AJ....128...16K 28
29 HI line (Parkes) 13.4 ... Jy km s^-1^ 1.42E+09 6.25E+04 ... Jy-Hz Line 2005MNRAS.361...34D 29


Detailed Information for Each Entry

 No. 1
Reference Code : 2012GASC..C...0000S
Freq. targeted : FUV (GALEX) AB      
Measurement    :  15.9017     mag                  = 1.58E-29 W m^-2^ Hz^-1^
Uncertainty    :  0.0181576   mag                  = 2.65E-31
Significance   : uncertainty
Freq or Vel.   : 1538.6       A            (OBS   )= 1.95E+15 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 335.11314423763 -15.77343848081 (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 : 20.6141 mag = 2.06E-31 W m^-2^ Hz^-1^ Uncertainty : 0.194893 mag = 3.70E-32 Significance : uncertainty Freq or Vel. : 1538.6 A (OBS )= 1.95E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 335.11314423763 -15.77343848081 (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 : 15.4681 mag = 2.36E-29 W m^-2^ Hz^-1^ Uncertainty : 0.00943150 mag = 2.05E-31 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 335.11314423763 -15.77343848081 (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 : 19.9749 mag = 3.72E-31 W m^-2^ Hz^-1^ Uncertainty : 0.0826415 mag = 2.83E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 335.11314423763 -15.77343848081 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Flux in 7.5 arcsec diameter aperture
No. 5 Reference Code : 1990MNRAS.243..692M Freq. targeted : b_J Measurement : 14.88 mag = 4.41E-29 W m^-2^ Hz^-1^ Uncertainty : 0.12 mag = 5.16E-30 Significance : rms uncertainty Freq or Vel. : 4680 A (OBS )= 6.41E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 221745.32 -160127.6 (B1950) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 6 Reference Code : 2005MNRAS.361...34D Freq. targeted : B_J Measurement : 13.2555 mag = 1.97E-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: 222027.2 -154624.7 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 7 Reference Code : 2005MNRAS.361...34D Freq. targeted : R Measurement : 13.1093 mag = 1.76E-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: 222027.2 -154624.7 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 8 Reference Code : 2005MNRAS.361...34D Freq. targeted : I Measurement : 12.6772 mag = 2.17E-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: 222027.2 -154624.7 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 9 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 14.054 mag = 3.81E-29 W m^-2^ Hz^-1^ Uncertainty : 0.125 mag = 4.39E-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 : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 13.176 mag = 8.55E-29 W m^-2^ Hz^-1^ Uncertainty : 0.018 mag = 1.42E-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. 11 Reference Code : 20032MASX.C.......: Freq. targeted : J_14arcsec (2MASS) Measurement : 12.339 mag = 1.85E-28 W m^-2^ Hz^-1^ Uncertainty : 0.010 mag = 1.71E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 222027.15 -154624.8 (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 : J Measurement : 10.990 mag = 6.40E-28 W m^-2^ Hz^-1^ Uncertainty : 0.023 mag = 1.37E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 222027.15 -154624.8 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 57.8 x 55.5 arcsec integration area.
No. 13 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 10.857 mag = 7.23E-28 W m^-2^ Hz^-1^ Uncertainty : 0.026 mag = 1.75E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 222027.15 -154624.8 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 14 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 10.317 mag = 7.65E-28 W m^-2^ Hz^-1^ Uncertainty : 0.034 mag = 2.43E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 222027.15 -154624.8 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 57.8 x 55.5 arcsec integration area.
No. 15 Reference Code : 20032MASX.C.......: Freq. targeted : H_14arcsec (2MASS) Measurement : 11.607 mag = 2.33E-28 W m^-2^ Hz^-1^ Uncertainty : 0.013 mag = 2.81E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 222027.15 -154624.8 (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 : H Measurement : 10.163 mag = 8.81E-28 W m^-2^ Hz^-1^ Uncertainty : 0.030 mag = 2.47E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 222027.15 -154624.8 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 17 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 13.423 mag = 4.38E-29 W m^-2^ Hz^-1^ Uncertainty : 0.146 mag = 5.88E-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. 18 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 12.451 mag = 1.07E-28 W m^-2^ Hz^-1^ Uncertainty : 0.018 mag = 1.78E-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. 19 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 12.77 mag = 5.20E-29 W m^-2^ Hz^-1^ Uncertainty : 0.097 mag = 4.65E-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 : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 12.178 mag = 8.97E-29 W m^-2^ Hz^-1^ Uncertainty : 0.016 mag = 1.32E-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. 21 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 9.879 mag = 7.45E-28 W m^-2^ Hz^-1^ Uncertainty : 0.043 mag = 3.01E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 222027.15 -154624.8 (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 : 11.367 mag = 1.89E-28 W m^-2^ Hz^-1^ Uncertainty : 0.018 mag = 3.16E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 222027.15 -154624.8 (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 : K_s Measurement : 10.025 mag = 6.52E-28 W m^-2^ Hz^-1^ Uncertainty : 0.046 mag = 2.82E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 222027.15 -154624.8 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 57.8 x 55.5 arcsec integration area.
No. 24 Reference Code : 1990IRASF.C...0000M Freq. targeted : 12 microns (IRAS) Measurement : <1.285E-01 Jy < 1.29E-27 W m^-2^ Hz^-1^ Uncertainty : Significance : 90% confidence Freq or Vel. : 12 microns (OBS )= 2.50E+13 Hz Frequency mode : Broad-band measurement Coord. targeted: 221744.4 -160135 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 25 Reference Code : 1990IRASF.C...0000M Freq. targeted : 25 microns (IRAS) Measurement : <1.664E-01 Jy < 1.66E-27 W m^-2^ Hz^-1^ Uncertainty : Significance : 90% confidence Freq or Vel. : 25 microns (OBS )= 1.20E+13 Hz Frequency mode : Broad-band measurement Coord. targeted: 221744.4 -160135 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 26 Reference Code : 1990IRASF.C...0000M Freq. targeted : 60 microns (IRAS) Measurement : 7.305E-01 Jy = 7.31E-27 W m^-2^ Hz^-1^ Uncertainty : 11 % Jy = 8.04E-28 Significance : uncertainty Freq or Vel. : 60 microns (OBS )= 5.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 221744.4 -160135 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 3
No. 27 Reference Code : 1990IRASF.C...0000M Freq. targeted : 100 microns (IRAS) Measurement : 2.338E+00 Jy = 2.34E-26 W m^-2^ Hz^-1^ Uncertainty : 8 % Jy = 1.87E-27 Significance : uncertainty Freq or Vel. : 100 microns (OBS )= 3.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 221744.4 -160135 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 2
No. 28 Reference Code : 2004AJ....128...16K Freq. targeted : HI 21cm line Parkes Measurement : 13.5 Jy km/s = 6.27E-22 W m^-2^ Uncertainty : 2.9 Jy km/s = 1.35E-22 Significance : uncertainty Freq or Vel. : 4866 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line Coord. targeted: 22 20 27 -15 45 09 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 29 Reference Code : 2005MNRAS.361...34D Freq. targeted : HI line (Parkes) Measurement : 13.4 Jy km s^-1^ = 6.25E-22 W m^-2^ Uncertainty : Jy km s^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 4865.7 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 222027.4 -154458. (J2000) Spatial mode : Flux integrated from map Notes : Averaged from previously published data Qualifiers :

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