NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-25 T16:41:09 PDT
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Spectral Energy Distribution (SED) for ABELL 0520:

4 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 0.3-3.5 keV (EO IPC) 7.2740E-12 +/- 1.1920E-12 ergs cm^-2^ s^-1^ 3.87E+17 1.88E-06 +/- 3.08E-07 Jy Broad-band 1990ApJS...72..567G 1
2 0.1-2.4 keV (ROSAT) 8.40 +/- 22.5% 10^-12^ erg/cm^2^/s 3.15E+17 2.67E-06 +/- 6.00E-07 Jy Broad-band 1998MNRAS.301..881E 2
3 R_C (CFHT) 23.72 ... mag 4.56E+14 9.64E-07 ... Jy Broad-band Limit mag 2009ApJ...698...83L 3
4 K_s (KPNO) 18.66 ... mag 1.38E+14 2.29E-05 ... Jy Broad-band Limiting magnitude 2007ApJ...659.1106M 4


Detailed Information for Each Entry

 No. 1
Reference Code : 1990ApJS...72..567G
Freq. targeted : 0.3-3.5 keV (EO IPC)
Measurement    :  7.2740E-12  ergs cm^-2^ s^-1^    = 7.27E-15 W m^-2^
Uncertainty    :  1.1920E-12  ergs cm^-2^ s^-1^    = 1.19E-15
Significance   : 1 sigma
Freq or Vel.   : 1.6          keV          (OBS   )= 3.87E+17 Hz
Frequency mode : Broad-band measurement; broad-band flux derived by
                 integration over spectrum; synthetic band
Coord. targeted: 045133.0        +025022.8 (B1950)
Spatial mode   : Integrated from scans
Notes          : From new raw data; Extinction-corrected for Milky Way; NED
                 frequency assigned to mid-point of band in keV
Qualifiers     :                                         

No. 2 Reference Code : 1998MNRAS.301..881E Freq. targeted : 0.1-2.4 keV (ROSAT) Measurement : 8.40 10^-12^ erg/cm^2^/s = 8.40E-15 W m^-2^ Uncertainty : 22.5% 10^-12^ erg/cm^2^/s = 1.89E-15 Significance : 1 sigma Freq or Vel. : 1.3 keV (OBS )= 3.15E+17 Hz Frequency mode : Broad-band measurement Coord. targeted: 045407. +025512. (J2000) Spatial mode : Integrated from scans Notes : From reprocessed raw data Qualifiers :
No. 3 Reference Code : 2009ApJ...698...83L Freq. targeted : R_C (CFHT) Measurement : 23.72 mag = 9.64E-33 W m^-2^ Hz^-1^ Uncertainty : mag = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 658 nm (OBS )= 4.56E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 04 54 14.1 +02 57 10.5 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Limit mag
No. 4 Reference Code : 2007ApJ...659.1106M Freq. targeted : K_s (KPNO) Measurement : 18.66 mag = 2.29E-31 W m^-2^ Hz^-1^ Uncertainty : mag = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Limiting magnitude

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