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Date and Time of the Query: 2019-04-22 T03:17:59 PDT
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Spectral Energy Distribution (SED) for NGC 2550:

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) 13.60 +/- 0.40 mag 6.81E+14 1.55E-02 +/- 6.89E-03 Jy Broad-band 1991RC3.9.C...0000d 1
2 m_p 13.1 +/- 0.4 mag 6.81E+14 2.45E-02 +/- 1.09E-02 Jy Broad-band 1968CGCG4.C...0000Z 2
3 I_tot_ (Cousins) 12.2 ... mag 3.79E+14 3.36E-02 ... Jy Broad-band mag extrapolated to 8 opt scale lengths 2005AJ....129.2119S 3
4 I 11.79 ... mag 3.79E+14 4.90E-02 ... Jy Broad-band 2007ApJS..172..599S 4
5 I 12.21 +/- 0.02 mag 3.79E+14 3.33E-02 +/- 6.14E-04 Jy Broad-band Observed magnitude 2007ApJS..172..599S 5
6 J (2MASS/FLWO) ... >13.52 mag 2.43E+14 < 6.23E-03 Jy Broad-band 2006AJ....131.1163S 6
7 J (2MASS/FLWO) ... >13.391 mag 2.43E+14 < 7.02E-03 Jy Broad-band 2006AJ....131.1163S 7
8 J 11.408 +/- 0.020 mag 2.40E+14 4.35E-02 +/- 8.09E-04 Jy Broad-band 55.8 x 29.0 arcsec integration area. 20032MASX.C.......: 8
9 J 11.333 +/- 0.025 mag 2.40E+14 4.66E-02 +/- 1.09E-03 Jy Broad-band 20032MASX.C.......: 9
10 J_14arcsec (2MASS) 12.678 +/- 0.013 mag 2.40E+14 1.35E-02 +/- 1.63E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 10
11 H 10.750 +/- 0.031 mag 1.82E+14 5.13E-02 +/- 1.49E-03 Jy Broad-band 55.8 x 29.0 arcsec integration area. 20032MASX.C.......: 11
12 H 10.498 +/- 0.028 mag 1.82E+14 6.47E-02 +/- 1.69E-03 Jy Broad-band 20032MASX.C.......: 12
13 H_14arcsec (2MASS) 11.939 +/- 0.016 mag 1.82E+14 1.72E-02 +/- 2.55E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 13
14 H (2MASS/FLWO) 12.765 +/- 0.008 mag 1.80E+14 8.02E-03 +/- 5.91E-05 Jy Broad-band 4" aperture; Confusion 2006AJ....131.1163S 14
15 H (2MASS/FLWO) 13.398 +/- 0.131 mag 1.80E+14 4.48E-03 +/- 5.40E-04 Jy Broad-band Profile-fit; Confusion 2006AJ....131.1163S 15
16 H (2MASS/FLWO) 12.635 +/- 0.016 mag 1.80E+14 9.04E-03 +/- 1.33E-04 Jy Broad-band 4" aperture; Confusion 2006AJ....131.1163S 16
17 H (2MASS/FLWO) 14.023 +/- 0.138 mag 1.80E+14 2.52E-03 +/- 3.20E-04 Jy Broad-band Profile-fit; Confusion 2006AJ....131.1163S 17
18 K_s (2MASS/FLWO) ... >12.543 mag 1.39E+14 < 6.41E-03 Jy Broad-band 2006AJ....131.1163S 18
19 K_s (2MASS/FLWO) ... >12.426 mag 1.39E+14 < 7.14E-03 Jy Broad-band 2006AJ....131.1163S 19
20 K_s 10.400 +/- 0.037 mag 1.38E+14 4.61E-02 +/- 1.60E-03 Jy Broad-band 20032MASX.C.......: 20
21 K_s 10.527 +/- 0.038 mag 1.38E+14 4.10E-02 +/- 1.46E-03 Jy Broad-band 55.8 x 29.0 arcsec integration area. 20032MASX.C.......: 21
22 K_s_14arcsec (2MASS) 11.599 +/- 0.017 mag 1.38E+14 1.53E-02 +/- 2.41E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 22
23 12 microns (IRAS) 1.222E-01 +/- 23 % Jy 2.50E+13 1.22E-01 +/- 2.81E-02 Jy Broad-band IRAS quality flag = 3 1990IRASF.C...0000M 23
24 25 microns (IRAS) 1.407E-01 +/- 13 % Jy 1.20E+13 1.41E-01 +/- 1.59E-02 Jy Broad-band IRAS quality flag = 3 1990IRASF.C...0000M 24
25 60 microns (IRAS) 1.312E+00 +/- 6 % Jy 5.00E+12 1.31E+00 +/- 7.87E-02 Jy Broad-band IRAS quality flag = 3 1990IRASF.C...0000M 25
26 100 microns (IRAS) 3.454E+00 +/- 6 % Jy 3.00E+12 3.45E+00 +/- 2.07E-01 Jy Broad-band IRAS quality flag = 2 1990IRASF.C...0000M 26
27 HI (21 cm line) 6.30 +/- 0.30 Jy km s^-1^ 1.42E+09 2.95E+04 +/- 1.41E+03 Jy-Hz Line 1989H&RHI.C...0000H 27
28 1.4GHz 9.2 +/- 1.1 milliJy 1.40E+09 9.20E-03 +/- 1.10E-03 Jy Broad-band 1998AJ....115.1693C 28
29 1.4 GHz (VLA) 8.1 ... milliJy 1.40E+09 8.10E-03 ... Jy Broad-band 2002AJ....124..675C 29


Detailed Information for Each Entry

 No. 1
Reference Code : 1991RC3.9.C...0000d
Freq. targeted : B (m_B)             
Measurement    :  13.60       mag                  = 1.55E-28 W m^-2^ Hz^-1^
Uncertainty    :  0.40        mag                  = 6.89E-29
Significance   : rms uncertainty
Freq or Vel.   : 4400         A            (OBS   )= 6.81E+14 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 081849.7        +741025 (B1950)
Spatial mode   : Multiple methods
Notes          : Homogenized from new and previously published data; Standard
                 Johnson UBVRI filters assumed
Qualifiers     :                                         

No. 2 Reference Code : 1968CGCG4.C...0000Z Freq. targeted : m_p Measurement : 13.1 mag = 2.45E-28 W m^-2^ Hz^-1^ Uncertainty : 0.4 mag = 1.09E-28 Significance : rms noise Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 081854.0 +741000. (B1950) Spatial mode : Estimated by eye Notes : From new raw data Qualifiers :
No. 3 Reference Code : 2005AJ....129.2119S Freq. targeted : I_tot_ (Cousins) Measurement : 12.2 mag = 3.36E-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: 08 24 33.9 +74 00 43 (J2000) Spatial mode : Total flux Notes : From new raw data Qualifiers : mag extrapolated to 8 opt scale lengths
No. 4 Reference Code : 2007ApJS..172..599S Freq. targeted : I Measurement : 11.79 mag = 4.90E-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: 08 24 33.9 +74 00 43 (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 : 12.21 mag = 3.33E-28 W m^-2^ Hz^-1^ Uncertainty : 0.02 mag = 6.14E-30 Significance : uncertainty Freq or Vel. : 7900 A (OBS )= 3.79E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 08 24 33.9 +74 00 43 (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 : >13.52 mag < 6.23E-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. 7 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/FLWO) Measurement : >13.391 mag < 7.02E-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. 8 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 11.408 mag = 4.35E-28 W m^-2^ Hz^-1^ Uncertainty : 0.020 mag = 8.09E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 082433.86 +740044.2 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data; Corrected for contaminating sources Qualifiers : 55.8 x 29.0 arcsec integration area.
No. 9 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 11.333 mag = 4.66E-28 W m^-2^ Hz^-1^ Uncertainty : 0.025 mag = 1.09E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 082433.86 +740044.2 (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 : 12.678 mag = 1.35E-28 W m^-2^ Hz^-1^ Uncertainty : 0.013 mag = 1.63E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 082433.86 +740044.2 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data; Corrected for contaminating sources Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 11 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 10.750 mag = 5.13E-28 W m^-2^ Hz^-1^ Uncertainty : 0.031 mag = 1.49E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 082433.86 +740044.2 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data; Corrected for contaminating sources Qualifiers : 55.8 x 29.0 arcsec integration area.
No. 12 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 10.498 mag = 6.47E-28 W m^-2^ Hz^-1^ Uncertainty : 0.028 mag = 1.69E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 082433.86 +740044.2 (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 : 11.939 mag = 1.72E-28 W m^-2^ Hz^-1^ Uncertainty : 0.016 mag = 2.55E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 082433.86 +740044.2 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data; Corrected for contaminating sources Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 14 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/FLWO) Measurement : 12.765 mag = 8.02E-29 W m^-2^ Hz^-1^ Uncertainty : 0.008 mag = 5.91E-31 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; Confusion
No. 15 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/FLWO) Measurement : 13.398 mag = 4.48E-29 W m^-2^ Hz^-1^ Uncertainty : 0.131 mag = 5.40E-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; Confusion
No. 16 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/FLWO) Measurement : 12.635 mag = 9.04E-29 W m^-2^ Hz^-1^ Uncertainty : 0.016 mag = 1.33E-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; Confusion
No. 17 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/FLWO) Measurement : 14.023 mag = 2.52E-29 W m^-2^ Hz^-1^ Uncertainty : 0.138 mag = 3.20E-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; Confusion
No. 18 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/FLWO) Measurement : >12.543 mag < 6.41E-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. 19 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/FLWO) Measurement : >12.426 mag < 7.14E-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. 20 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 10.400 mag = 4.61E-28 W m^-2^ Hz^-1^ Uncertainty : 0.037 mag = 1.60E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 082433.86 +740044.2 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 21 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 10.527 mag = 4.10E-28 W m^-2^ Hz^-1^ Uncertainty : 0.038 mag = 1.46E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 082433.86 +740044.2 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 55.8 x 29.0 arcsec integration area.
No. 22 Reference Code : 20032MASX.C.......: Freq. targeted : K_s_14arcsec (2MASS) Measurement : 11.599 mag = 1.53E-28 W m^-2^ Hz^-1^ Uncertainty : 0.017 mag = 2.41E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 082433.86 +740044.2 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 23 Reference Code : 1990IRASF.C...0000M Freq. targeted : 12 microns (IRAS) Measurement : 1.222E-01 Jy = 1.22E-27 W m^-2^ Hz^-1^ Uncertainty : 23 % Jy = 2.81E-28 Significance : uncertainty Freq or Vel. : 12 microns (OBS )= 2.50E+13 Hz Frequency mode : Broad-band measurement Coord. targeted: 081846.3 +741025 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 3
No. 24 Reference Code : 1990IRASF.C...0000M Freq. targeted : 25 microns (IRAS) Measurement : 1.407E-01 Jy = 1.41E-27 W m^-2^ Hz^-1^ Uncertainty : 13 % Jy = 1.59E-28 Significance : uncertainty Freq or Vel. : 25 microns (OBS )= 1.20E+13 Hz Frequency mode : Broad-band measurement Coord. targeted: 081846.3 +741025 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 3
No. 25 Reference Code : 1990IRASF.C...0000M Freq. targeted : 60 microns (IRAS) Measurement : 1.312E+00 Jy = 1.31E-26 W m^-2^ Hz^-1^ Uncertainty : 6 % Jy = 7.87E-28 Significance : uncertainty Freq or Vel. : 60 microns (OBS )= 5.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 081846.3 +741025 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 3
No. 26 Reference Code : 1990IRASF.C...0000M Freq. targeted : 100 microns (IRAS) Measurement : 3.454E+00 Jy = 3.45E-26 W m^-2^ Hz^-1^ Uncertainty : 6 % Jy = 2.07E-27 Significance : uncertainty Freq or Vel. : 100 microns (OBS )= 3.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 081846.3 +741025 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 2
No. 27 Reference Code : 1989H&RHI.C...0000H Freq. targeted : HI (21 cm line) Measurement : 6.30 Jy km s^-1^ = 2.95E-22 W m^-2^ Uncertainty : 0.30 Jy km s^-1^ = 1.41E-23 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: 081848.8 +741025. (B1950) Spatial mode : Not reported in paper Notes : Transformed from previously published data Qualifiers :
No. 28 Reference Code : 1998AJ....115.1693C Freq. targeted : 1.4GHz Measurement : 9.2 milliJy = 9.20E-29 W m^-2^ Hz^-1^ Uncertainty : 1.1 milliJy = 1.10E-29 Significance : uncertainty Freq or Vel. : 1.40 GHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 08 24 33.60 +74 00 42.7 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 29 Reference Code : 2002AJ....124..675C Freq. targeted : 1.4 GHz (VLA) Measurement : 8.1 milliJy = 8.10E-29 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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