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Date and Time of the Query: 2019-05-24 T02:31:12 PDT
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Spectral Energy Distribution (SED) for NGC 7231:

32 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 B (m_B) 13.90 +/- 0.18 mag 6.81E+14 1.17E-02 +/- 2.12E-03 Jy Broad-band 1991RC3.9.C...0000d 1
2 B (m_B^0) 12.36 ... mag 6.81E+14 4.85E-02 ... Jy Broad-band 1991RC3.9.C...0000d 2
3 m_p 14.0 +/- 0.4 mag 6.81E+14 1.07E-02 +/- 4.77E-03 Jy Broad-band 1968CGCG6.C...0000Z 3
4 J (2MASS/FLWO) ... >13.575 mag 2.43E+14 < 5.92E-03 Jy Broad-band 2006AJ....131.1163S 4
5 J 11.109 +/- 0.029 mag 2.40E+14 5.73E-02 +/- 1.55E-03 Jy Broad-band 98.0 x 29.4 arcsec integration area. 20032MASX.C.......: 5
6 J 11.016 +/- 0.029 mag 2.40E+14 6.25E-02 +/- 1.69E-03 Jy Broad-band 20032MASX.C.......: 6
7 J_14arcsec (2MASS) 12.613 +/- 0.016 mag 2.40E+14 1.43E-02 +/- 2.13E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 7
8 H 10.447 +/- 0.038 mag 1.82E+14 6.78E-02 +/- 2.42E-03 Jy Broad-band 98.0 x 29.4 arcsec integration area. 20032MASX.C.......: 8
9 H 10.325 +/- 0.034 mag 1.82E+14 7.59E-02 +/- 2.41E-03 Jy Broad-band 20032MASX.C.......: 9
10 H_14arcsec (2MASS) 11.912 +/- 0.018 mag 1.82E+14 1.76E-02 +/- 2.94E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 10
11 H (2MASS/FLWO) 13.554 +/- 0.118 mag 1.80E+14 3.88E-03 +/- 4.22E-04 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 11
12 H (2MASS/FLWO) 12.826 +/- 0.026 mag 1.80E+14 7.58E-03 +/- 1.82E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 12
13 K_s (2MASS/FLWO) 12.57 +/- 0.02 mag 1.39E+14 6.25E-03 +/- 1.15E-04 Jy Broad-band 4" aperture; Confusion 2006AJ....131.1163S 13
14 K_s (2MASS/FLWO) 13.349 +/- 0.093 mag 1.39E+14 3.05E-03 +/- 2.61E-04 Jy Broad-band Profile-fit; Confusion 2006AJ....131.1163S 14
15 K_s 9.983 +/- 0.040 mag 1.38E+14 6.77E-02 +/- 2.54E-03 Jy Broad-band 20032MASX.C.......: 15
16 K_s_14arcsec (2MASS) 11.625 +/- 0.023 mag 1.38E+14 1.49E-02 +/- 3.20E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 16
17 K_s 10.137 +/- 0.048 mag 1.38E+14 5.88E-02 +/- 2.66E-03 Jy Broad-band 98.0 x 29.4 arcsec integration area. 20032MASX.C.......: 17
18 12 microns (IRAS) ... <0.250 Jy 2.50E+13 < 2.50E-01 Jy Broad-band 1988IRASP.C2..0000: 18
19 25 microns (IRAS) 0.204 +/- 12 % Jy 1.20E+13 2.04E-01 +/- 2.45E-02 Jy Broad-band IRAS quality flag = 2 1988IRASP.C2..0000: 19
20 60 microns (IRAS) 3.104 +/- 9 % Jy 5.00E+12 3.10E+00 +/- 2.79E-01 Jy Broad-band IRAS quality flag = 3 1988IRASP.C2..0000: 20
21 100 microns (IRAS) 6.283 +/- 6 % Jy 3.00E+12 6.28E+00 +/- 3.77E-01 Jy Broad-band IRAS quality flag = 3 1988IRASP.C2..0000: 21
22 170 microns (ISO) 7.44 +/- 30 % Jy 1.76E+12 7.44E+00 +/- 2.23E+00 Jy Broad-band 2004A&A...422...39S 22
23 HI (21 cm line) 21.2 ... Jy km sec^-1^ 1.42E+09 1.00E+05 ... Jy-Hz Line rms noise = 5.16 mJy 1988AJ.....95..607H 23
24 HI (21 cm line) 14.08 +/- 0.10 m_21 mag 1.42E+09 1.02E+05 +/- 9.83E+03 Jy-Hz Line m_21 equiv. to S(HI) = 1.019E-21 W m^-2 1991RC3.9.C...0000d 24
25 HI 21 cm line 21.32 ... Jy km s^-1^ 1.42E+09 1.01E+05 ... Jy-Hz Line Corrected line flux 2005ApJS..160..149S 25
26 HI line (WSRT) 25.93 ... Jy km s^-1^ 1.42E+09 1.22E+05 ... Jy-Hz Line 2005A&A...442..137N 26
27 HI 21 cm line 24.32 +/- 2.46 Jy km s^-1^ 1.42E+09 1.15E+05 +/- 1.16E+04 Jy-Hz Line Self-absorption corrected line flux 2005ApJS..160..149S 27
28 HI 21 cm line 20.90 ... Jy km s^-1^ 1.42E+09 9.86E+04 ... Jy-Hz Line 2005ApJS..160..149S 28
29 HI (21 cm line) 21.7 +/- 1.7 Jy km sec^-1^ 1.42E+09 1.02E+05 +/- 7.97E+03 Jy-Hz Line 1998A&AS..130..333T 29
30 HI (21 cm line) 21.20 ... Jy km s^-1^ 1.42E+09 9.97E+04 ... Jy-Hz Line 1989H&RHI.C...0000H 30
31 1.4GHz 21.8 +/- 1.6 milliJy 1.40E+09 2.18E-02 +/- 1.60E-03 Jy Broad-band High Integral 1998AJ....115.1693C 31
32 1.4 GHz (VLA) 20.4 ... milliJy 1.40E+09 2.04E-02 ... Jy Broad-band 2002AJ....124..675C 32


Detailed Information for Each Entry

 No. 1
Reference Code : 1991RC3.9.C...0000d
Freq. targeted : B (m_B)             
Measurement    :  13.90       mag                  = 1.17E-28 W m^-2^ Hz^-1^
Uncertainty    :  0.18        mag                  = 2.12E-29
Significance   : rms uncertainty
Freq or Vel.   : 4400         A            (OBS   )= 6.81E+14 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 221027.7        +450455 (B1950)
Spatial mode   : Multiple methods
Notes          : Homogenized from new and previously published data; Standard
                 Johnson UBVRI filters assumed
Qualifiers     :                                         

No. 2 Reference Code : 1991RC3.9.C...0000d Freq. targeted : B (m_B^0) Measurement : 12.36 mag = 4.85E-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: 221027.7 +450455 (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. 3 Reference Code : 1968CGCG6.C...0000Z Freq. targeted : m_p Measurement : 14.0 mag = 1.07E-28 W m^-2^ Hz^-1^ Uncertainty : 0.4 mag = 4.77E-29 Significance : rms noise Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 221024.0 +450500. (B1950) Spatial mode : Estimated by eye Notes : From new raw data Qualifiers :
No. 4 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/FLWO) Measurement : >13.575 mag < 5.92E-29 W m^-2^ Hz^-1^ Uncertainty : Significance : 95% confidence 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 :
No. 5 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 11.109 mag = 5.73E-28 W m^-2^ Hz^-1^ Uncertainty : 0.029 mag = 1.55E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 221230.13 +451942.5 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data; Corrected for contaminating sources Qualifiers : 98.0 x 29.4 arcsec integration area.
No. 6 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 11.016 mag = 6.25E-28 W m^-2^ Hz^-1^ Uncertainty : 0.029 mag = 1.69E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 221230.13 +451942.5 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 7 Reference Code : 20032MASX.C.......: Freq. targeted : J_14arcsec (2MASS) Measurement : 12.613 mag = 1.43E-28 W m^-2^ Hz^-1^ Uncertainty : 0.016 mag = 2.13E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 221230.13 +451942.5 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 8 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 10.447 mag = 6.78E-28 W m^-2^ Hz^-1^ Uncertainty : 0.038 mag = 2.42E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 221230.13 +451942.5 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data; Corrected for contaminating sources Qualifiers : 98.0 x 29.4 arcsec integration area.
No. 9 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 10.325 mag = 7.59E-28 W m^-2^ Hz^-1^ Uncertainty : 0.034 mag = 2.41E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 221230.13 +451942.5 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 10 Reference Code : 20032MASX.C.......: Freq. targeted : H_14arcsec (2MASS) Measurement : 11.912 mag = 1.76E-28 W m^-2^ Hz^-1^ Uncertainty : 0.018 mag = 2.94E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 221230.13 +451942.5 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 11 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/FLWO) Measurement : 13.554 mag = 3.88E-29 W m^-2^ Hz^-1^ Uncertainty : 0.118 mag = 4.22E-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. 12 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/FLWO) Measurement : 12.826 mag = 7.58E-29 W m^-2^ Hz^-1^ Uncertainty : 0.026 mag = 1.82E-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. 13 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/FLWO) Measurement : 12.57 mag = 6.25E-29 W m^-2^ Hz^-1^ Uncertainty : 0.02 mag = 1.15E-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; Confusion
No. 14 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/FLWO) Measurement : 13.349 mag = 3.05E-29 W m^-2^ Hz^-1^ Uncertainty : 0.093 mag = 2.61E-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; Confusion
No. 15 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 9.983 mag = 6.77E-28 W m^-2^ Hz^-1^ Uncertainty : 0.040 mag = 2.54E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 221230.13 +451942.5 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 16 Reference Code : 20032MASX.C.......: Freq. targeted : K_s_14arcsec (2MASS) Measurement : 11.625 mag = 1.49E-28 W m^-2^ Hz^-1^ Uncertainty : 0.023 mag = 3.20E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 221230.13 +451942.5 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 17 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 10.137 mag = 5.88E-28 W m^-2^ Hz^-1^ Uncertainty : 0.048 mag = 2.66E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 221230.13 +451942.5 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data; Corrected for contaminating sources Qualifiers : 98.0 x 29.4 arcsec integration area.
No. 18 Reference Code : 1988IRASP.C2..0000: Freq. targeted : 12 microns (IRAS) Measurement : <0.250 Jy < 2.50E-27 W m^-2^ Hz^-1^ Uncertainty : Significance : 3 sigma Freq or Vel. : 12 microns (OBS )= 2.50E+13 Hz Frequency mode : Broad-band measurement Coord. targeted: 221026.1 +450441 (B1950) Spatial mode : Integrated from scans Notes : From new raw data Qualifiers :
No. 19 Reference Code : 1988IRASP.C2..0000: Freq. targeted : 25 microns (IRAS) Measurement : 0.204 Jy = 2.04E-27 W m^-2^ Hz^-1^ Uncertainty : 12 % Jy = 2.45E-28 Significance : uncertainty Freq or Vel. : 25 microns (OBS )= 1.20E+13 Hz Frequency mode : Broad-band measurement Coord. targeted: 221026.1 +450441 (B1950) Spatial mode : Integrated from scans Notes : From new raw data Qualifiers : IRAS quality flag = 2
No. 20 Reference Code : 1988IRASP.C2..0000: Freq. targeted : 60 microns (IRAS) Measurement : 3.104 Jy = 3.10E-26 W m^-2^ Hz^-1^ Uncertainty : 9 % Jy = 2.79E-27 Significance : uncertainty Freq or Vel. : 60 microns (OBS )= 5.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 221026.1 +450441 (B1950) Spatial mode : Integrated from scans Notes : From new raw data Qualifiers : IRAS quality flag = 3
No. 21 Reference Code : 1988IRASP.C2..0000: Freq. targeted : 100 microns (IRAS) Measurement : 6.283 Jy = 6.28E-26 W m^-2^ Hz^-1^ Uncertainty : 6 % Jy = 3.77E-27 Significance : uncertainty Freq or Vel. : 100 microns (OBS )= 3.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 221026.1 +450441 (B1950) Spatial mode : Integrated from scans Notes : From new raw data Qualifiers : IRAS quality flag = 3
No. 22 Reference Code : 2004A&A...422...39S Freq. targeted : 170 microns (ISO) Measurement : 7.44 Jy = 7.44E-26 W m^-2^ Hz^-1^ Uncertainty : 30 % Jy = 2.23E-26 Significance : uncertainty Freq or Vel. : 170 microns (OBS )= 1.76E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 22 12 32.35 +45 19 24.5 (J2000) Spatial mode : Integrated from scans Notes : Averaged from previously published data Qualifiers :
No. 23 Reference Code : 1988AJ.....95..607H Freq. targeted : HI (21 cm line) Measurement : 21.2 Jy km sec^-1^ = 1.00E-21 W m^-2^ Uncertainty : See Qualifier Jy km sec^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 1086 km sec^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 221027.7 +450455 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : rms noise = 5.16 mJy
No. 24 Reference Code : 1991RC3.9.C...0000d Freq. targeted : HI (21 cm line) Measurement : 14.08 m_21 mag = 1.02E-21 W m^-2^ Uncertainty : 0.10 m_21 mag = 9.83E-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: 221027.7 +450455 (B1950) Spatial mode : Multiple methods Notes : Homogenized from new and previously published data Qualifiers : m_21 equiv. to S(HI) = 1.019E-21 W m^-2
No. 25 Reference Code : 2005ApJS..160..149S Freq. targeted : HI 21 cm line Measurement : 21.32 Jy km s^-1^ = 1.01E-21 W m^-2^ Uncertainty : Jy km s^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 1087 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 22 12 30.4 +45 19 41 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Corrected line flux
No. 26 Reference Code : 2005A&A...442..137N Freq. targeted : HI line (WSRT) Measurement : 25.93 Jy km s^-1^ = 1.22E-21 W m^-2^ Uncertainty : Jy km s^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 1086 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 22 12 30.1 +45 19 42 (J2000) Spatial mode : Total flux Notes : From new raw data Qualifiers :
No. 27 Reference Code : 2005ApJS..160..149S Freq. targeted : HI 21 cm line Measurement : 24.32 Jy km s^-1^ = 1.15E-21 W m^-2^ Uncertainty : 2.46 Jy km s^-1^ = 1.16E-22 Significance : uncertainty Freq or Vel. : 1087 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 22 12 30.4 +45 19 41 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Self-absorption corrected line flux
No. 28 Reference Code : 2005ApJS..160..149S Freq. targeted : HI 21 cm line Measurement : 20.90 Jy km s^-1^ = 9.86E-22 W m^-2^ Uncertainty : Jy km s^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 1087 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 22 12 30.4 +45 19 41 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 29 Reference Code : 1998A&AS..130..333T Freq. targeted : HI (21 cm line) Measurement : 21.7 Jy km sec^-1^ = 1.02E-21 W m^-2^ Uncertainty : 1.7 Jy km sec^-1^ = 7.97E-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: 221028. +450454. (B1950) Spatial mode : Integrated from scans; Beam filling or dilution corrected Notes : From new raw data Qualifiers :
No. 30 Reference Code : 1989H&RHI.C...0000H Freq. targeted : HI (21 cm line) Measurement : 21.20 Jy km s^-1^ = 9.97E-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: 221027. +450455. (B1950) Spatial mode : Not reported in paper Notes : Transformed from previously published data Qualifiers :
No. 31 Reference Code : 1998AJ....115.1693C Freq. targeted : 1.4GHz Measurement : 21.8 milliJy = 2.18E-28 W m^-2^ Hz^-1^ Uncertainty : 1.6 milliJy = 1.60E-29 Significance : uncertainty Freq or Vel. : 1.40 GHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 22 12 29.99 +45 19 40.6 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : High Integral
No. 32 Reference Code : 2002AJ....124..675C Freq. targeted : 1.4 GHz (VLA) Measurement : 20.4 milliJy = 2.04E-28 W m^-2^ Hz^-1^ Uncertainty : milliJy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 1.4 GHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux integrated from map Notes : Averaged from previously published data Qualifiers :

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