NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-24 T02:42:41 PDT
Help | Comment | NED Home

Spectral Energy Distribution (SED) for MESSIER 028:

2 Data Points
 Click to zoom in at a position of interest (uses a separate window). 
Select zoom factor:  

                Postscript version of the SED plot






  New options   Format tabular data as:


Photometric Data --- Published and Homogenized [Frequency, Flux Density] Units

  Published UnitsHomogenized Units [Frequency, Flux Density]  
No.Observed PassbandMeasurementUncertaintyUnitsFreq (Hz)MeasurementUncertaintyUnitsModeAperture/QualifiersReference CodeNo.
1 100 MeV-100 GeV LAT 16.8E-12 +/- 6.0E-12 erg/s/cm^2^ 1.21E+25 1.39E-13 +/- 4.96E-14 Jy Broad-band 2010ApJS..188..405A 1
2 0.1-100 GeV (Fermi) 24.3E-12 +/- 3.3E-12 erg/cm^2^/s 1.21E+25 2.01E-13 +/- 2.73E-14 Jy Broad-band 2012ApJS..199...31N 2


Detailed Information for Each Entry

 No. 1
Reference Code : 2010ApJS..188..405A
Freq. targeted : 100 MeV-100 GeV LAT 
Measurement    :  16.8E-12    erg/s/cm^2^          = 1.68E-14 W m^-2^
Uncertainty    :  6.0E-12     erg/s/cm^2^          = 6.00E-15
Significance   : uncertainty
Freq or Vel.   :      50050   MeV          (OBS   )= 1.21E+25 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 276.137         -24.829 (J2000)
Spatial mode   : From fitting to map
Notes          : From new raw data; NED frequency assigned to mid-point of
                 band in keV
Qualifiers     :                                         

No. 2 Reference Code : 2012ApJS..199...31N Freq. targeted : 0.1-100 GeV (Fermi) Measurement : 24.3E-12 erg/cm^2^/s = 2.43E-14 W m^-2^ Uncertainty : 3.3E-12 erg/cm^2^/s = 3.30E-15 Significance : 1 sigma Freq or Vel. : 50.05 GeV (OBS )= 1.21E+25 Hz Frequency mode : Broad-band measurement Coord. targeted: 276.203 -24.827 (J2000) Spatial mode : Modelled datum Notes : From new raw data; NED frequency assigned to mid-point of band in keV Qualifiers :

Back to NED Home