NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-21 T03:52:06 PDT
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Spectral Energy Distribution (SED) for NGC 4557:

11 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 u (SDSS PSF) AB 16.568 +/- 0.015 asinh mag 8.36E+14 8.89E-04 +/- 1.23E-05 Jy Broad-band SDSS Qualifiers 2007SDSS6.C...0000: 1
2 g (SDSS PSF) AB 15.385 +/- 0.015 asinh mag 6.17E+14 2.55E-03 +/- 3.52E-05 Jy Broad-band SDSS Qualifiers 2007SDSS6.C...0000: 2
3 r (SDSS PSF) AB 14.943 +/- 0.021 asinh mag 4.77E+14 3.83E-03 +/- 7.40E-05 Jy Broad-band SDSS Qualifiers 2007SDSS6.C...0000: 3
4 i (SDSS PSF) AB 14.902 +/- 0.024 asinh mag 3.89E+14 3.97E-03 +/- 8.78E-05 Jy Broad-band SDSS Qualifiers 2007SDSS6.C...0000: 4
5 z (SDSS PSF) AB 14.822 +/- 0.027 asinh mag 3.25E+14 4.20E-03 +/- 1.04E-04 Jy Broad-band SDSS Qualifiers 2007SDSS6.C...0000: 5
6 J (2MASS/FLWO) 14.001 +/- 0.028 mag 2.43E+14 4.00E-03 +/- 1.03E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 6
7 J (2MASS/FLWO) 14.024 +/- 0.022 mag 2.43E+14 3.92E-03 +/- 7.94E-05 Jy Broad-band 4" aperture 2006AJ....131.1163S 7
8 H (2MASS/FLWO) 13.649 +/- 0.038 mag 1.80E+14 3.55E-03 +/- 1.24E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 8
9 H (2MASS/FLWO) 13.681 +/- 0.038 mag 1.80E+14 3.45E-03 +/- 1.21E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 9
10 K_s (2MASS/FLWO) 13.767 +/- 0.041 mag 1.39E+14 2.08E-03 +/- 7.84E-05 Jy Broad-band 4" aperture 2006AJ....131.1163S 10
11 K_s (2MASS/FLWO) 13.682 +/- 0.039 mag 1.39E+14 2.24E-03 +/- 8.06E-05 Jy Broad-band Profile-fit 2006AJ....131.1163S 11


Detailed Information for Each Entry

 No. 1
Reference Code : 2007SDSS6.C...0000:
Freq. targeted : u (SDSS PSF) AB     
Measurement    :  16.568      asinh mag            = 8.89E-30 W m^-2^ Hz^-1^
Uncertainty    :  0.015       asinh mag            = 1.23E-31
Significance   : based on count statistics only
Freq or Vel.   : 3585         A            (OBS   )= 8.36E+14 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 188.9572682286  27.0537908408 (J2000)
Spatial mode   : Modelled datum
Notes          : From new raw data
Qualifiers     : SDSS flags
                 CHILD - object is part of a blended parent object
                 BAD_RADIAL - some low S/N radial points
                 BINNED1 - detected at >=5 sigma in original imaging frame

No. 2 Reference Code : 2007SDSS6.C...0000: Freq. targeted : g (SDSS PSF) AB Measurement : 15.385 asinh mag = 2.55E-29 W m^-2^ Hz^-1^ Uncertainty : 0.015 asinh mag = 3.52E-31 Significance : based on count statistics only Freq or Vel. : 4858 A (OBS )= 6.17E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 188.9572682286 27.0537908408 (J2000) Spatial mode : Modelled datum Notes : From new raw data Qualifiers : SDSS flags CHILD - object is part of a blended parent object BAD_RADIAL - some low S/N radial points BINNED1 - detected at >=5 sigma in original imaging frame
No. 3 Reference Code : 2007SDSS6.C...0000: Freq. targeted : r (SDSS PSF) AB Measurement : 14.943 asinh mag = 3.83E-29 W m^-2^ Hz^-1^ Uncertainty : 0.021 asinh mag = 7.40E-31 Significance : based on count statistics only Freq or Vel. : 6290 A (OBS )= 4.77E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 188.9572682286 27.0537908408 (J2000) Spatial mode : Modelled datum Notes : From new raw data Qualifiers : SDSS flags CHILD - object is part of a blended parent object BAD_RADIAL - some low S/N radial points INTERP - object contains interpolated-over pixels BINNED1 - detected at >=5 sigma in original imaging frame CANONICAL_BAND - this band was primary (usually r)
No. 4 Reference Code : 2007SDSS6.C...0000: Freq. targeted : i (SDSS PSF) AB Measurement : 14.902 asinh mag = 3.97E-29 W m^-2^ Hz^-1^ Uncertainty : 0.024 asinh mag = 8.78E-31 Significance : based on count statistics only Freq or Vel. : 7706 A (OBS )= 3.89E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 188.9572682286 27.0537908408 (J2000) Spatial mode : Modelled datum Notes : From new raw data Qualifiers : SDSS flags CHILD - object is part of a blended parent object COSMIC_RAY - contains a cosmic ray pixel BAD_RADIAL - some low S/N radial points INTERP - object contains interpolated-over pixels BINNED1 - detected at >=5 sigma in original imaging frame
No. 5 Reference Code : 2007SDSS6.C...0000: Freq. targeted : z (SDSS PSF) AB Measurement : 14.822 asinh mag = 4.20E-29 W m^-2^ Hz^-1^ Uncertainty : 0.027 asinh mag = 1.04E-30 Significance : based on count statistics only Freq or Vel. : 9222 A (OBS )= 3.25E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 188.9572682286 27.0537908408 (J2000) Spatial mode : Modelled datum Notes : From new raw data Qualifiers : SDSS flags CHILD - object is part of a blended parent object BAD_RADIAL - some low S/N radial points BINNED1 - detected at >=5 sigma in original imaging frame
No. 6 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/FLWO) Measurement : 14.001 mag = 4.00E-29 W m^-2^ Hz^-1^ Uncertainty : 0.028 mag = 1.03E-30 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
No. 7 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/FLWO) Measurement : 14.024 mag = 3.92E-29 W m^-2^ Hz^-1^ Uncertainty : 0.022 mag = 7.94E-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
No. 8 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/FLWO) Measurement : 13.649 mag = 3.55E-29 W m^-2^ Hz^-1^ Uncertainty : 0.038 mag = 1.24E-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
No. 9 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/FLWO) Measurement : 13.681 mag = 3.45E-29 W m^-2^ Hz^-1^ Uncertainty : 0.038 mag = 1.21E-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. 10 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/FLWO) Measurement : 13.767 mag = 2.08E-29 W m^-2^ Hz^-1^ Uncertainty : 0.041 mag = 7.84E-31 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
No. 11 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/FLWO) Measurement : 13.682 mag = 2.24E-29 W m^-2^ Hz^-1^ Uncertainty : 0.039 mag = 8.06E-31 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

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