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Date and Time of the Query: 2019-06-25 T17:53:04 PDT
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Spectral Energy Distribution (SED) for NGC 7228:

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 18.1252 +/- 0.114055 mag 1.95E+15 2.04E-04 +/- 2.14E-05 Jy Broad-band Kron flux in elliptical aperture 2012GASC..C...0000S 1
2 FUV (GALEX) AB 22.4228 +/- 0.786774 mag 1.95E+15 3.90E-06 +/- 2.82E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 2
3 NUV (GALEX) AB 17.9347 +/- 0.0748086 mag 1.29E+15 2.43E-04 +/- 1.68E-05 Jy Broad-band Kron flux in elliptical aperture 2012GASC..C...0000S 3
4 NUV (GALEX) AB 21.2705 +/- 0.232107 mag 1.29E+15 1.13E-05 +/- 2.41E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 4
5 m_p 15.0 +/- 0.4 mag 6.81E+14 4.26E-03 +/- 1.90E-03 Jy Broad-band 1968CGCG6.C...0000Z 5
6 B (m_B^0) 13.58 ... mag 6.81E+14 1.58E-02 ... Jy Broad-band 1991RC3.9.C...0000d 6
7 B (m_B) 14.40 +/- 0.30 mag 6.81E+14 7.40E-03 +/- 2.36E-03 Jy Broad-band 1991RC3.9.C...0000d 7
8 J (2MASS/FLWO) 12.921 +/- 0.057 mag 2.43E+14 1.08E-02 +/- 5.68E-04 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 8
9 J (2MASS/FLWO) 12.387 +/- 0.011 mag 2.43E+14 1.77E-02 +/- 1.79E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 9
10 J 10.811 +/- 0.035 mag 2.40E+14 7.54E-02 +/- 2.47E-03 Jy Broad-band 20032MASX.C.......: 10
11 J_14arcsec (2MASS) 11.953 +/- 0.008 mag 2.40E+14 2.63E-02 +/- 1.95E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 11
12 J 11.074 +/- 0.024 mag 2.40E+14 5.92E-02 +/- 1.32E-03 Jy Broad-band 70.2 x 35.1 arcsec integration area. 20032MASX.C.......: 12
13 H 10.086 +/- 0.038 mag 1.82E+14 9.46E-02 +/- 3.37E-03 Jy Broad-band 20032MASX.C.......: 13
14 H_14arcsec (2MASS) 11.217 +/- 0.009 mag 1.82E+14 3.34E-02 +/- 2.78E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 14
15 H 10.375 +/- 0.033 mag 1.82E+14 7.25E-02 +/- 2.24E-03 Jy Broad-band 70.2 x 35.1 arcsec integration area. 20032MASX.C.......: 15
16 H (2MASS/FLWO) 11.642 +/- 0.009 mag 1.80E+14 2.26E-02 +/- 1.87E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 16
17 H (2MASS/FLWO) 12.071 +/- 0.061 mag 1.80E+14 1.52E-02 +/- 8.54E-04 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 17
18 K_s (2MASS/FLWO) 11.717 +/- 0.05 mag 1.39E+14 1.37E-02 +/- 6.32E-04 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 18
19 K_s (2MASS/FLWO) 11.321 +/- 0.01 mag 1.39E+14 1.98E-02 +/- 1.82E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 19
20 K_s 10.091 +/- 0.042 mag 1.38E+14 6.13E-02 +/- 2.42E-03 Jy Broad-band 70.2 x 35.1 arcsec integration area. 20032MASX.C.......: 20
21 K_s 9.782 +/- 0.048 mag 1.38E+14 8.15E-02 +/- 3.68E-03 Jy Broad-band 20032MASX.C.......: 21
22 K_s_14arcsec (2MASS) 10.899 +/- 0.012 mag 1.38E+14 2.91E-02 +/- 3.24E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 22
23 HI (21 cm line) 4 ... Jy km sec^-1^ 1.42E+09 1.85E+04 ... Jy-Hz Line rms noise = 2.28 mJy 1993AJ....105.1251W 23
24 HI (21 cm line)_c_ 4.07 ... Jy km sec^-1^ 1.42E+09 1.89E+04 ... Jy-Hz Line rms noise = 2.28 mJy 1993AJ....105.1251W 24
25 HI (21 cm line) 4 ... Jy km sec^-1^ 1.42E+09 1.85E+04 ... Jy-Hz Line rms noise = 2.28 mJy 1988AJ.....95..607H 25
26 HI (21 cm line) 15.89 +/- 0.10 m_21 mag 1.42E+09 1.92E+04 +/- 1.86E+03 Jy-Hz Line m_21 equiv. to S(HI) = 1.923E-22 W m^-2 1991RC3.9.C...0000d 26
27 HI 21 cm line 4.30 ... Jy km s^-1^ 1.42E+09 1.99E+04 ... Jy-Hz Line 2005ApJS..160..149S 27
28 HI 21 cm line 4.53 +/- 0.57 Jy km s^-1^ 1.42E+09 2.10E+04 +/- 2.64E+03 Jy-Hz Line Self-absorption corrected line flux 2005ApJS..160..149S 28
29 HI 21 cm line 4.38 ... Jy km s^-1^ 1.42E+09 2.03E+04 ... Jy-Hz Line Corrected line flux 2005ApJS..160..149S 29
30 HI (21 cm line) 4.00 ... Jy km s^-1^ 1.42E+09 1.85E+04 ... Jy-Hz Line 1989H&RHI.C...0000H 30


Detailed Information for Each Entry

 No. 1
Reference Code : 2012GASC..C...0000S
Freq. targeted : FUV (GALEX) AB      
Measurement    :  18.1252     mag                  = 2.04E-30 W m^-2^ Hz^-1^
Uncertainty    :  0.114055    mag                  = 2.14E-31
Significance   : uncertainty
Freq or Vel.   : 1538.6       A            (OBS   )= 1.95E+15 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 332.95160649158 38.699863223156 (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 : 22.4228 mag = 3.90E-32 W m^-2^ Hz^-1^ Uncertainty : 0.786774 mag = 2.82E-32 Significance : uncertainty Freq or Vel. : 1538.6 A (OBS )= 1.95E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 332.95160649158 38.699863223156 (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 : 17.9347 mag = 2.43E-30 W m^-2^ Hz^-1^ Uncertainty : 0.0748086 mag = 1.68E-31 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 332.95160649158 38.699863223156 (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 : 21.2705 mag = 1.13E-31 W m^-2^ Hz^-1^ Uncertainty : 0.232107 mag = 2.41E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 332.95160649158 38.699863223156 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Flux in 7.5 arcsec diameter aperture
No. 5 Reference Code : 1968CGCG6.C...0000Z Freq. targeted : m_p Measurement : 15.0 mag = 4.26E-29 W m^-2^ Hz^-1^ Uncertainty : 0.4 mag = 1.90E-29 Significance : rms noise Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 220936.0 +382700. (B1950) Spatial mode : Estimated by eye Notes : From new raw data Qualifiers :
No. 6 Reference Code : 1991RC3.9.C...0000d Freq. targeted : B (m_B^0) Measurement : 13.58 mag = 1.57E-28 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: 220939.3 +382707 (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. 7 Reference Code : 1991RC3.9.C...0000d Freq. targeted : B (m_B) Measurement : 14.40 mag = 7.40E-29 W m^-2^ Hz^-1^ Uncertainty : 0.30 mag = 2.36E-29 Significance : rms uncertainty Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 220939.3 +382707 (B1950) Spatial mode : Multiple methods Notes : Homogenized from new and previously published data; Standard Johnson UBVRI filters assumed Qualifiers :
No. 8 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/FLWO) Measurement : 12.921 mag = 1.08E-28 W m^-2^ Hz^-1^ Uncertainty : 0.057 mag = 5.68E-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. 9 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/FLWO) Measurement : 12.387 mag = 1.77E-28 W m^-2^ Hz^-1^ Uncertainty : 0.011 mag = 1.79E-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. 10 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 10.811 mag = 7.54E-28 W m^-2^ Hz^-1^ Uncertainty : 0.035 mag = 2.47E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 221148.60 +384157.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 11 Reference Code : 20032MASX.C.......: Freq. targeted : J_14arcsec (2MASS) Measurement : 11.953 mag = 2.63E-28 W m^-2^ Hz^-1^ Uncertainty : 0.008 mag = 1.95E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 221148.60 +384157.0 (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 : 11.074 mag = 5.92E-28 W m^-2^ Hz^-1^ Uncertainty : 0.024 mag = 1.32E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 221148.60 +384157.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 70.2 x 35.1 arcsec integration area.
No. 13 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 10.086 mag = 9.46E-28 W m^-2^ Hz^-1^ Uncertainty : 0.038 mag = 3.37E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 221148.60 +384157.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 14 Reference Code : 20032MASX.C.......: Freq. targeted : H_14arcsec (2MASS) Measurement : 11.217 mag = 3.34E-28 W m^-2^ Hz^-1^ Uncertainty : 0.009 mag = 2.78E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 221148.60 +384157.0 (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 : 10.375 mag = 7.25E-28 W m^-2^ Hz^-1^ Uncertainty : 0.033 mag = 2.24E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 221148.60 +384157.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 70.2 x 35.1 arcsec integration area.
No. 16 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/FLWO) Measurement : 11.642 mag = 2.26E-28 W m^-2^ Hz^-1^ Uncertainty : 0.009 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 : H (2MASS/FLWO) Measurement : 12.071 mag = 1.52E-28 W m^-2^ Hz^-1^ Uncertainty : 0.061 mag = 8.54E-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 : K_s (2MASS/FLWO) Measurement : 11.717 mag = 1.37E-28 W m^-2^ Hz^-1^ Uncertainty : 0.05 mag = 6.32E-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 : Profile-fit; Poor quality
No. 19 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/FLWO) Measurement : 11.321 mag = 1.98E-28 W m^-2^ Hz^-1^ Uncertainty : 0.01 mag = 1.82E-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 : 10.091 mag = 6.13E-28 W m^-2^ Hz^-1^ Uncertainty : 0.042 mag = 2.42E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 221148.60 +384157.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 70.2 x 35.1 arcsec integration area.
No. 21 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 9.782 mag = 8.15E-28 W m^-2^ Hz^-1^ Uncertainty : 0.048 mag = 3.68E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 221148.60 +384157.0 (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 : 10.899 mag = 2.91E-28 W m^-2^ Hz^-1^ Uncertainty : 0.012 mag = 3.24E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 221148.60 +384157.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 23 Reference Code : 1993AJ....105.1251W Freq. targeted : HI (21 cm line) Measurement : 4 Jy km sec^-1^ = 1.85E-22 W m^-2^ Uncertainty : See Qualifier Jy km sec^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 6553 km sec^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 220939.1 +382700 (B1950) Spatial mode : Flux in fixed aperture Notes : Transformed from previously published data Qualifiers : rms noise = 2.28 mJy
No. 24 Reference Code : 1993AJ....105.1251W Freq. targeted : HI (21 cm line)_c_ Measurement : 4.07 Jy km sec^-1^ = 1.89E-22 W m^-2^ Uncertainty : See Qualifier Jy km sec^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 6553 km sec^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 220939.1 +382700 (B1950) Spatial mode : Corrected to total flux from single aperture measurement; Pointing and beam filling corrected Notes : Transformed from previously published data; Extinction-corrected internal to object Qualifiers : rms noise = 2.28 mJy
No. 25 Reference Code : 1988AJ.....95..607H Freq. targeted : HI (21 cm line) Measurement : 4 Jy km sec^-1^ = 1.85E-22 W m^-2^ Uncertainty : See Qualifier Jy km sec^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 6553 km sec^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 220939.1 +382700 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : rms noise = 2.28 mJy
No. 26 Reference Code : 1991RC3.9.C...0000d Freq. targeted : HI (21 cm line) Measurement : 15.89 m_21 mag = 1.92E-22 W m^-2^ Uncertainty : 0.10 m_21 mag = 1.85E-23 Significance : rms uncertainty Freq or Vel. : 21 cm (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 220939.3 +382707 (B1950) Spatial mode : Multiple methods Notes : Homogenized from new and previously published data Qualifiers : m_21 equiv. to S(HI) = 1.923E-22 W m^-2
No. 27 Reference Code : 2005ApJS..160..149S Freq. targeted : HI 21 cm line Measurement : 4.30 Jy km s^-1^ = 1.99E-22 W m^-2^ Uncertainty : Jy km s^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 6554 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 22 11 48.7 +38 41 56 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 28 Reference Code : 2005ApJS..160..149S Freq. targeted : HI 21 cm line Measurement : 4.53 Jy km s^-1^ = 2.10E-22 W m^-2^ Uncertainty : 0.57 Jy km s^-1^ = 2.64E-23 Significance : uncertainty Freq or Vel. : 6554 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 22 11 48.7 +38 41 56 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Self-absorption corrected line flux
No. 29 Reference Code : 2005ApJS..160..149S Freq. targeted : HI 21 cm line Measurement : 4.38 Jy km s^-1^ = 2.03E-22 W m^-2^ Uncertainty : Jy km s^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 6554 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 22 11 48.7 +38 41 56 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Corrected line flux
No. 30 Reference Code : 1989H&RHI.C...0000H Freq. targeted : HI (21 cm line) Measurement : 4.00 Jy km s^-1^ = 1.85E-22 W m^-2^ Uncertainty : Jy km s^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 21 cm (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 220936. +382700. (B1950) Spatial mode : Not reported in paper Notes : Transformed from previously published data Qualifiers :

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