NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-17 T03:44:34 PDT
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Spectral Energy Distribution (SED) for NGC 6684A:

16 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) 13.20 +/- 0.21 mag 6.81E+14 2.24E-02 +/- 4.77E-03 Jy Broad-band 1991RC3.9.C...0000d 1
2 B (m_B^0) 12.80 ... mag 6.81E+14 3.23E-02 ... Jy Broad-band 1991RC3.9.C...0000d 2
3 B (Cousins) (B_T) 13.21 +/- 0.09 mag 6.81E+14 2.21E-02 +/- 1.91E-03 Jy Broad-band 1989ESOLV.C...0000L 3
4 B (Cousins) (B_25) 14.39 +/- 0.09 mag 6.81E+14 7.46E-03 +/- 6.44E-04 Jy Broad-band 1989ESOLV.C...0000L 4
5 B (Cousins) (B_26) 13.69 +/- 0.09 mag 6.81E+14 1.43E-02 +/- 1.24E-03 Jy Broad-band 1989ESOLV.C...0000L 5
6 B_J 12.5494 ... mag 6.41E+14 3.77E-02 ... Jy Broad-band 2005MNRAS.361...34D 6
7 R (Cousins) (R_T) 12.05 +/- 0.09 mag 4.68E+14 4.67E-02 +/- 4.03E-03 Jy Broad-band 1989ESOLV.C...0000L 7
8 R (Cousins) (R_25) 13.22 +/- 0.09 mag 4.68E+14 1.59E-02 +/- 1.37E-03 Jy Broad-band 1989ESOLV.C...0000L 8
9 R (Cousins) (R_26) 12.44 +/- 0.09 mag 4.68E+14 3.24E-02 +/- 2.80E-03 Jy Broad-band 1989ESOLV.C...0000L 9
10 R 12.5520 ... mag 4.68E+14 2.94E-02 ... Jy Broad-band 2005MNRAS.361...34D 10
11 I 12.6925 ... mag 3.79E+14 2.14E-02 ... Jy Broad-band 2005MNRAS.361...34D 11
12 HI (21 cm line) 13.56 +/- 0.20 m_21 mag 1.42E+09 1.64E+05 +/- 3.33E+04 Jy-Hz Line m_21 equiv. to S(HI) = 1.644E-21 W m^-2 1991RC3.9.C...0000d 12
13 HI line (Parkes) 29.6 ... Jy km s^-1^ 1.42E+09 1.40E+05 ... Jy-Hz Line 2005MNRAS.361...34D 13
14 HI 21cm line Parkes 29.0 +/- 4.1 Jy km/s 1.42E+09 1.36E+05 +/- 1.93E+04 Jy-Hz Line 2004AJ....128...16K 14
15 HI (21 cm line) 30.10 +/- 3.00 Jy km s^-1^ 1.42E+09 1.42E+05 +/- 1.41E+04 Jy-Hz Line 1989H&RHI.C...0000H 15
16 HI (21 cm line) 48.00 +/- 8.00 Jy km s^-1^ 1.42E+09 2.26E+05 +/- 3.76E+04 Jy-Hz Line 1989H&RHI.C...0000H 16


Detailed Information for Each Entry

 No. 1
Reference Code : 1991RC3.9.C...0000d
Freq. targeted : B (m_B)             
Measurement    :  13.20       mag                  = 2.24E-28 W m^-2^ Hz^-1^
Uncertainty    :  0.21        mag                  = 4.77E-29
Significance   : rms uncertainty
Freq or Vel.   : 4400         A            (OBS   )= 6.81E+14 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 184730.1        -645330 (B1950)
Spatial mode   : Multiple methods
Notes          : Homogenized from new and previously published data; Standard
                 Johnson UBVRI filters assumed
Qualifiers     :                                         

No. 2 Reference Code : 1991RC3.9.C...0000d Freq. targeted : B (m_B^0) Measurement : 12.80 mag = 3.23E-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: 184730.1 -645330 (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. 3 Reference Code : 1989ESOLV.C...0000L Freq. targeted : B (Cousins) (B_T) Measurement : 13.21 mag = 2.21E-28 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 1.91E-29 Significance : typical accuracy Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 184730 -6453.5 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 4 Reference Code : 1989ESOLV.C...0000L Freq. targeted : B (Cousins) (B_25) Measurement : 14.39 mag = 7.46E-29 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 6.44E-30 Significance : typical accuracy Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 184730 -6453.5 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 5 Reference Code : 1989ESOLV.C...0000L Freq. targeted : B (Cousins) (B_26) Measurement : 13.69 mag = 1.43E-28 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 1.24E-29 Significance : typical accuracy Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 184730 -6453.5 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 6 Reference Code : 2005MNRAS.361...34D Freq. targeted : B_J Measurement : 12.5494 mag = 3.77E-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: 185224.2 -645004.1 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 7 Reference Code : 1989ESOLV.C...0000L Freq. targeted : R (Cousins) (R_T) Measurement : 12.05 mag = 4.67E-28 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 4.03E-29 Significance : typical accuracy Freq or Vel. : 6400 A (OBS )= 4.68E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 184730 -6453.5 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 8 Reference Code : 1989ESOLV.C...0000L Freq. targeted : R (Cousins) (R_25) Measurement : 13.22 mag = 1.59E-28 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 1.37E-29 Significance : typical accuracy Freq or Vel. : 6400 A (OBS )= 4.68E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 184730 -6453.5 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 9 Reference Code : 1989ESOLV.C...0000L Freq. targeted : R (Cousins) (R_26) Measurement : 12.44 mag = 3.24E-28 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 2.80E-29 Significance : typical accuracy Freq or Vel. : 6400 A (OBS )= 4.68E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 184730 -6453.5 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 10 Reference Code : 2005MNRAS.361...34D Freq. targeted : R Measurement : 12.5520 mag = 2.94E-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: 185224.2 -645004.1 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 11 Reference Code : 2005MNRAS.361...34D Freq. targeted : I Measurement : 12.6925 mag = 2.14E-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: 185224.2 -645004.1 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 12 Reference Code : 1991RC3.9.C...0000d Freq. targeted : HI (21 cm line) Measurement : 13.56 m_21 mag = 1.64E-21 W m^-2^ Uncertainty : 0.20 m_21 mag = 3.33E-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: 184730.1 -645330 (B1950) Spatial mode : Multiple methods Notes : Homogenized from new and previously published data Qualifiers : m_21 equiv. to S(HI) = 1.644E-21 W m^-2
No. 13 Reference Code : 2005MNRAS.361...34D Freq. targeted : HI line (Parkes) Measurement : 29.6 Jy km s^-1^ = 1.40E-21 W m^-2^ Uncertainty : Jy km s^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 1006.0 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 185222.0 -645011. (J2000) Spatial mode : Flux integrated from map Notes : Averaged from previously published data Qualifiers :
No. 14 Reference Code : 2004AJ....128...16K Freq. targeted : HI 21cm line Parkes Measurement : 29.0 Jy km/s = 1.36E-21 W m^-2^ Uncertainty : 4.1 Jy km/s = 1.93E-22 Significance : uncertainty Freq or Vel. : 1006 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line Coord. targeted: 18 52 21 -64 50 12 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 15 Reference Code : 1989H&RHI.C...0000H Freq. targeted : HI (21 cm line) Measurement : 30.10 Jy km s^-1^ = 1.42E-21 W m^-2^ Uncertainty : 3.00 Jy km s^-1^ = 1.41E-22 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: 184732.1 -645319. (B1950) Spatial mode : Not reported in paper Notes : Transformed from previously published data Qualifiers :
No. 16 Reference Code : 1989H&RHI.C...0000H Freq. targeted : HI (21 cm line) Measurement : 48.00 Jy km s^-1^ = 2.26E-21 W m^-2^ Uncertainty : 8.00 Jy km s^-1^ = 3.76E-22 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: 184732.1 -645319. (B1950) Spatial mode : Not reported in paper Notes : Transformed from previously published data Qualifiers :

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