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Date and Time of the Query: 2019-04-25 T11:00:59 PDT
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Spectral Energy Distribution (SED) for NGC 2938:

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 B (m_B) 14.20 +/- 0.20 mag 6.81E+14 8.90E-03 +/- 1.80E-03 Jy Broad-band 1991RC3.9.C...0000d 1
2 B (m_B^0) 13.81 ... mag 6.81E+14 1.28E-02 ... Jy Broad-band 1991RC3.9.C...0000d 2
3 m_p 14.4 +/- 0.4 mag 6.81E+14 7.40E-03 +/- 3.30E-03 Jy Broad-band 1968CGCG4.C...0000Z 3
4 I 12.82 ... mag 3.79E+14 1.90E-02 ... Jy Broad-band 2007ApJS..172..599S 4
5 I 13.04 +/- 0.06 mag 3.79E+14 1.55E-02 +/- 8.57E-04 Jy Broad-band Observed magnitude 2007ApJS..172..599S 5
6 J (2MASS/FLWO) 16.242 +/- 0.175 mag 2.43E+14 5.08E-04 +/- 8.18E-05 Jy Broad-band Profile-fit; Confusion 2006AJ....131.1163S 6
7 J (2MASS/FLWO) 15.306 +/- 0.053 mag 2.43E+14 1.20E-03 +/- 5.87E-05 Jy Broad-band 4" aperture; Confusion 2006AJ....131.1163S 7
8 J 13.298 +/- 0.057 mag 2.40E+14 7.63E-03 +/- 4.11E-04 Jy Broad-band 61.2 x 10.9 arcsec integration area. 20032MASX.C.......: 8
9 J 13.036 +/- 0.062 mag 2.40E+14 9.72E-03 +/- 5.71E-04 Jy Broad-band 20032MASX.C.......: 9
10 J_14arcsec (2MASS) 14.118 +/- 0.049 mag 2.40E+14 3.59E-03 +/- 1.66E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 10
11 H 12.691 +/- 0.078 mag 1.82E+14 8.59E-03 +/- 6.40E-04 Jy Broad-band 61.2 x 10.9 arcsec integration area. 20032MASX.C.......: 11
12 H 12.630 +/- 0.100 mag 1.82E+14 9.08E-03 +/- 8.76E-04 Jy Broad-band 20032MASX.C.......: 12
13 H_14arcsec (2MASS) 13.439 +/- 0.062 mag 1.82E+14 4.31E-03 +/- 2.53E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 13
14 H (2MASS/FLWO) ... >14.62 mag 1.80E+14 < 1.45E-03 Jy Broad-band 2006AJ....131.1163S 14
15 K_s (2MASS/FLWO) ... >14.368 mag 1.39E+14 < 1.19E-03 Jy Broad-band 2006AJ....131.1163S 15
16 K_s 12.024 +/- 0.090 mag 1.38E+14 1.03E-02 +/- 8.93E-04 Jy Broad-band 20032MASX.C.......: 16
17 K_s 12.457 +/- 0.101 mag 1.38E+14 6.94E-03 +/- 6.76E-04 Jy Broad-band 61.2 x 10.9 arcsec integration area. 20032MASX.C.......: 17
18 K_s_14arcsec (2MASS) 13.317 +/- 0.085 mag 1.38E+14 3.14E-03 +/- 2.56E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 18
19 12 microns (IRAS) ... <1.025E-01 Jy 2.50E+13 < 1.03E-01 Jy Broad-band 1990IRASF.C...0000M 19
20 25 microns (IRAS) ... <1.213E-01 Jy 1.20E+13 < 1.21E-01 Jy Broad-band 1990IRASF.C...0000M 20
21 60 microns (IRAS) 2.998E-01 +/- 13 % Jy 5.00E+12 3.00E-01 +/- 3.90E-02 Jy Broad-band IRAS quality flag = 3 1990IRASF.C...0000M 21
22 100 microns (IRAS) 1.006E+00 +/- 20 % Jy 3.00E+12 1.01E+00 +/- 2.01E-01 Jy Broad-band IRAS quality flag = 2 1990IRASF.C...0000M 22
23 HI (21 cm line) 14.10 +/- 0.10 m_21 mag 1.42E+09 1.00E+05 +/- 9.65E+03 Jy-Hz Line m_21 equiv. to S(HI) = 1.000E-21 W m^-2 1991RC3.9.C...0000d 23
24 HI (21 cm line) 20.86 ... Jy km sec^-1^ 1.42E+09 9.80E+04 ... Jy-Hz Line rms noise = 4.85 mJy 1988AJ.....95..607H 24
25 HI 21 cm line 20.86 ... Jy km s^-1^ 1.42E+09 9.81E+04 ... Jy-Hz Line 2005ApJS..160..149S 25
26 HI 21 cm line 21.52 ... Jy km s^-1^ 1.42E+09 1.01E+05 ... Jy-Hz Line Corrected line flux 2005ApJS..160..149S 26
27 HI 21 cm line 23.16 +/- 2.29 Jy km s^-1^ 1.42E+09 1.09E+05 +/- 1.08E+04 Jy-Hz Line Self-absorption corrected line flux 2005ApJS..160..149S 27
28 HI (21 cm line) 20.86 ... Jy km s^-1^ 1.42E+09 9.77E+04 ... Jy-Hz Line 1989H&RHI.C...0000H 28
29 HI (21 cm line) 28.30 +/- 3.20 Jy km s^-1^ 1.42E+09 1.33E+05 +/- 1.50E+04 Jy-Hz Line 1989H&RHI.C...0000H 29


Detailed Information for Each Entry

 No. 1
Reference Code : 1991RC3.9.C...0000d
Freq. targeted : B (m_B)             
Measurement    :  14.20       mag                  = 8.90E-29 W m^-2^ Hz^-1^
Uncertainty    :  0.20        mag                  = 1.80E-29
Significance   : rms uncertainty
Freq or Vel.   : 4400         A            (OBS   )= 6.81E+14 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 093307.4        +763240 (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 : 13.81 mag = 1.28E-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: 093307.4 +763240 (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 : 1968CGCG4.C...0000Z Freq. targeted : m_p Measurement : 14.4 mag = 7.40E-29 W m^-2^ Hz^-1^ Uncertainty : 0.4 mag = 3.30E-29 Significance : rms noise Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093300.0 +763300. (B1950) Spatial mode : Estimated by eye Notes : From new raw data Qualifiers :
No. 4 Reference Code : 2007ApJS..172..599S Freq. targeted : I Measurement : 12.82 mag = 1.90E-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: 09 38 25.4 +76 19 08 (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. 5 Reference Code : 2007ApJS..172..599S Freq. targeted : I Measurement : 13.04 mag = 1.55E-28 W m^-2^ Hz^-1^ Uncertainty : 0.06 mag = 8.57E-30 Significance : uncertainty Freq or Vel. : 7900 A (OBS )= 3.79E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 09 38 25.4 +76 19 08 (J2000) Spatial mode : Total flux Notes : Averaged new and previously published data; Standard Cousins R_C, I_C filters assumed Qualifiers : Observed magnitude
No. 6 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/FLWO) Measurement : 16.242 mag = 5.08E-30 W m^-2^ Hz^-1^ Uncertainty : 0.175 mag = 8.18E-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 : Profile-fit; Confusion
No. 7 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/FLWO) Measurement : 15.306 mag = 1.20E-29 W m^-2^ Hz^-1^ Uncertainty : 0.053 mag = 5.87E-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; Confusion
No. 8 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 13.298 mag = 7.63E-29 W m^-2^ Hz^-1^ Uncertainty : 0.057 mag = 4.11E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093823.79 +761910.4 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 61.2 x 10.9 arcsec integration area.
No. 9 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 13.036 mag = 9.72E-29 W m^-2^ Hz^-1^ Uncertainty : 0.062 mag = 5.71E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093823.79 +761910.4 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 10 Reference Code : 20032MASX.C.......: Freq. targeted : J_14arcsec (2MASS) Measurement : 14.118 mag = 3.59E-29 W m^-2^ Hz^-1^ Uncertainty : 0.049 mag = 1.66E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093823.79 +761910.4 (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 : H Measurement : 12.691 mag = 8.59E-29 W m^-2^ Hz^-1^ Uncertainty : 0.078 mag = 6.40E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093823.79 +761910.4 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 61.2 x 10.9 arcsec integration area.
No. 12 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 12.630 mag = 9.08E-29 W m^-2^ Hz^-1^ Uncertainty : 0.100 mag = 8.76E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093823.79 +761910.4 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 13 Reference Code : 20032MASX.C.......: Freq. targeted : H_14arcsec (2MASS) Measurement : 13.439 mag = 4.31E-29 W m^-2^ Hz^-1^ Uncertainty : 0.062 mag = 2.53E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093823.79 +761910.4 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 14 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/FLWO) Measurement : >14.62 mag < 1.45E-29 W m^-2^ Hz^-1^ Uncertainty : Significance : 95% confidence 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 :
No. 15 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/FLWO) Measurement : >14.368 mag < 1.19E-29 W m^-2^ Hz^-1^ Uncertainty : Significance : 95% confidence 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 :
No. 16 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 12.024 mag = 1.03E-28 W m^-2^ Hz^-1^ Uncertainty : 0.090 mag = 8.93E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093823.79 +761910.4 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 17 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 12.457 mag = 6.94E-29 W m^-2^ Hz^-1^ Uncertainty : 0.101 mag = 6.76E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093823.79 +761910.4 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 61.2 x 10.9 arcsec integration area.
No. 18 Reference Code : 20032MASX.C.......: Freq. targeted : K_s_14arcsec (2MASS) Measurement : 13.317 mag = 3.14E-29 W m^-2^ Hz^-1^ Uncertainty : 0.085 mag = 2.56E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 093823.79 +761910.4 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 19 Reference Code : 1990IRASF.C...0000M Freq. targeted : 12 microns (IRAS) Measurement : <1.025E-01 Jy < 1.02E-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: 093303.1 +763244 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 20 Reference Code : 1990IRASF.C...0000M Freq. targeted : 25 microns (IRAS) Measurement : <1.213E-01 Jy < 1.21E-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: 093303.1 +763244 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 21 Reference Code : 1990IRASF.C...0000M Freq. targeted : 60 microns (IRAS) Measurement : 2.998E-01 Jy = 3.00E-27 W m^-2^ Hz^-1^ Uncertainty : 13 % Jy = 3.90E-28 Significance : uncertainty Freq or Vel. : 60 microns (OBS )= 5.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 093303.1 +763244 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 3
No. 22 Reference Code : 1990IRASF.C...0000M Freq. targeted : 100 microns (IRAS) Measurement : 1.006E+00 Jy = 1.01E-26 W m^-2^ Hz^-1^ Uncertainty : 20 % Jy = 2.01E-27 Significance : uncertainty Freq or Vel. : 100 microns (OBS )= 3.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 093303.1 +763244 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 2
No. 23 Reference Code : 1991RC3.9.C...0000d Freq. targeted : HI (21 cm line) Measurement : 14.10 m_21 mag = 1.00E-21 W m^-2^ Uncertainty : 0.10 m_21 mag = 9.65E-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: 093307.4 +763240 (B1950) Spatial mode : Multiple methods Notes : Homogenized from new and previously published data Qualifiers : m_21 equiv. to S(HI) = 1.000E-21 W m^-2
No. 24 Reference Code : 1988AJ.....95..607H Freq. targeted : HI (21 cm line) Measurement : 20.86 Jy km sec^-1^ = 9.80E-22 W m^-2^ Uncertainty : See Qualifier Jy km sec^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 2285 km sec^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 093307.3 +763240 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : rms noise = 4.85 mJy
No. 25 Reference Code : 2005ApJS..160..149S Freq. targeted : HI 21 cm line Measurement : 20.86 Jy km s^-1^ = 9.81E-22 W m^-2^ Uncertainty : Jy km s^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 2285 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 09 38 25.4 +76 19 08 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 26 Reference Code : 2005ApJS..160..149S Freq. targeted : HI 21 cm line Measurement : 21.52 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. : 2285 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 09 38 25.4 +76 19 08 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Corrected line flux
No. 27 Reference Code : 2005ApJS..160..149S Freq. targeted : HI 21 cm line Measurement : 23.16 Jy km s^-1^ = 1.09E-21 W m^-2^ Uncertainty : 2.29 Jy km s^-1^ = 1.08E-22 Significance : uncertainty Freq or Vel. : 2285 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 09 38 25.4 +76 19 08 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Self-absorption corrected line flux
No. 28 Reference Code : 1989H&RHI.C...0000H Freq. targeted : HI (21 cm line) Measurement : 20.86 Jy km s^-1^ = 9.77E-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: 093307.3 +763240. (B1950) Spatial mode : Not reported in paper Notes : Transformed from previously published data Qualifiers :
No. 29 Reference Code : 1989H&RHI.C...0000H Freq. targeted : HI (21 cm line) Measurement : 28.30 Jy km s^-1^ = 1.33E-21 W m^-2^ Uncertainty : 3.20 Jy km s^-1^ = 1.50E-22 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: 093307.3 +763240. (B1950) Spatial mode : Not reported in paper Notes : Transformed from previously published data Qualifiers :

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