NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-23 T11:58:50 PDT
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Spectral Energy Distribution (SED) for NGC 4393:

13 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 UV_1650 (m_T) 11.79 +/- 0.32 mag 1.82E+15 6.34E-03 +/- 2.17E-03 Jy Broad-band 1995A&AS..114..527R 1
2 m(2000) 12.1 +/- 0.3 mag 1.50E+15 6.54E-03 +/- 2.08E-03 Jy Broad-band 1987A&A...180...12D 2
3 B (m_B) 12.70 +/- 0.30 mag 6.81E+14 3.54E-02 +/- 1.13E-02 Jy Broad-band 1991RC3.9.C...0000d 3
4 B (m_B^0) 12.58 ... mag 6.81E+14 3.96E-02 ... Jy Broad-band 1991RC3.9.C...0000d 4
5 m_p 13.8 +/- 0.4 mag 6.81E+14 1.29E-02 +/- 5.73E-03 Jy Broad-band 1963CGCG2.C...0000Z 5
6 J (POSS II) 13.7 ... mag 6.41E+14 1.31E-02 ... Jy Broad-band Isophotal mag 2008ApJS..175...86P 6
7 F (POSS II) 12.8 ... mag 4.68E+14 2.34E-02 ... Jy Broad-band Isophotal mag 2008ApJS..175...86P 7
8 12 microns (IRAS) ... <5.601E-02 Jy 2.50E+13 < 5.60E-02 Jy Broad-band 1990IRASF.C...0000M 8
9 25 microns (IRAS) ... <1.217E-01 Jy 1.20E+13 < 1.22E-01 Jy Broad-band 1990IRASF.C...0000M 9
10 60 microns (IRAS) 3.278E-01 +/- 21 % Jy 5.00E+12 3.28E-01 +/- 6.88E-02 Jy Broad-band IRAS quality flag = 3 1990IRASF.C...0000M 10
11 100 microns (IRAS) 1.394E+00 +/- 16 % Jy 3.00E+12 1.39E+00 +/- 2.23E-01 Jy Broad-band IRAS quality flag = 2 1990IRASF.C...0000M 11
12 2380 MHz 6. +/- 3. milliJy 2.38E+09 6.00E-03 +/- 3.00E-03 Jy Broad-band 1978ApJS...36...53D 12
13 HI (21 cm line) 13.47 +/- 0.10 m_21 mag 1.42E+09 1.79E+05 +/- 1.72E+04 Jy-Hz Line m_21 equiv. to S(HI) = 1.786E-21 W m^-2 1991RC3.9.C...0000d 13


Detailed Information for Each Entry

 No. 1
Reference Code : 1995A&AS..114..527R
Freq. targeted : UV_1650 (m_T)       
Measurement    :  11.79       mag                  = 6.34E-29 W m^-2^ Hz^-1^
Uncertainty    :  0.32        mag                  = 2.17E-29
Significance   : mean error
Freq or Vel.   : 1650         A            (OBS   )= 1.82E+15 Hz
Frequency mode : Broad-band measurement; broad-band flux derived by
                 integration over spectrum; synthetic band
Coord. targeted: 122321          275013 (B1950)
Spatial mode   : Multiple methods
Notes          : Homogenized from previously published data
Qualifiers     :                                         

No. 2 Reference Code : 1987A&A...180...12D Freq. targeted : m(2000) Measurement : 12.1 mag = 6.54E-29 W m^-2^ Hz^-1^ Uncertainty : 0.3 mag = 2.08E-29 Significance : rms uncertainty Freq or Vel. : 2000 A (OBS )= 1.50E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 3 Reference Code : 1991RC3.9.C...0000d Freq. targeted : B (m_B) Measurement : 12.70 mag = 3.54E-28 W m^-2^ Hz^-1^ Uncertainty : 0.30 mag = 1.13E-28 Significance : rms uncertainty Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 122320.9 +275013 (B1950) Spatial mode : Multiple methods Notes : Homogenized from new and previously published data; Standard Johnson UBVRI filters assumed Qualifiers :
No. 4 Reference Code : 1991RC3.9.C...0000d Freq. targeted : B (m_B^0) Measurement : 12.58 mag = 3.96E-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: 122320.9 +275013 (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. 5 Reference Code : 1963CGCG2.C...0000Z Freq. targeted : m_p Measurement : 13.8 mag = 1.29E-28 W m^-2^ Hz^-1^ Uncertainty : 0.4 mag = 5.73E-29 Significance : rms noise Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 122318.0 +275000. (B1950) Spatial mode : Estimated by eye Notes : From new raw data Qualifiers :
No. 6 Reference Code : 2008ApJS..175...86P Freq. targeted : J (POSS II) Measurement : 13.7 mag = 1.31E-28 W m^-2^ Hz^-1^ Uncertainty : mag = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 4680 A (OBS )= 6.41E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 12 25 51.2 +27 33 42.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From reprocessed raw data Qualifiers : Isophotal mag
No. 7 Reference Code : 2008ApJS..175...86P Freq. targeted : F (POSS II) Measurement : 12.8 mag = 2.34E-28 W m^-2^ Hz^-1^ Uncertainty : mag = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 6400 A (OBS )= 4.68E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 12 25 51.2 +27 33 42.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From reprocessed raw data; derived from a flux in a different band and a color Qualifiers : Isophotal mag
No. 8 Reference Code : 1990IRASF.C...0000M Freq. targeted : 12 microns (IRAS) Measurement : <5.601E-02 Jy < 5.60E-28 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: 122319.5 +275040 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 9 Reference Code : 1990IRASF.C...0000M Freq. targeted : 25 microns (IRAS) Measurement : <1.217E-01 Jy < 1.22E-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: 122319.5 +275040 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 10 Reference Code : 1990IRASF.C...0000M Freq. targeted : 60 microns (IRAS) Measurement : 3.278E-01 Jy = 3.28E-27 W m^-2^ Hz^-1^ Uncertainty : 21 % Jy = 6.88E-28 Significance : uncertainty Freq or Vel. : 60 microns (OBS )= 5.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 122319.5 +275040 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 3
No. 11 Reference Code : 1990IRASF.C...0000M Freq. targeted : 100 microns (IRAS) Measurement : 1.394E+00 Jy = 1.39E-26 W m^-2^ Hz^-1^ Uncertainty : 16 % Jy = 2.23E-27 Significance : uncertainty Freq or Vel. : 100 microns (OBS )= 3.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 122319.5 +275040 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 2
No. 12 Reference Code : 1978ApJS...36...53D Freq. targeted : 2380 MHz Measurement : 6. milliJy = 6.00E-29 W m^-2^ Hz^-1^ Uncertainty : 3. milliJy = 3.00E-29 Significance : rms uncertainty Freq or Vel. : 2380 MHz (OBS )= 2.38E+09 Hz Frequency mode : Broad-band measurement; peak value reported Coord. targeted: Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 13 Reference Code : 1991RC3.9.C...0000d Freq. targeted : HI (21 cm line) Measurement : 13.47 m_21 mag = 1.79E-21 W m^-2^ Uncertainty : 0.10 m_21 mag = 1.72E-22 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: 122320.9 +275013 (B1950) Spatial mode : Multiple methods Notes : Homogenized from new and previously published data Qualifiers : m_21 equiv. to S(HI) = 1.786E-21 W m^-2

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