NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-16 T07:33:55 PDT
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Spectral Energy Distribution (SED) for IC 3308:

14 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) 15.41 +/- 0.18 mag 6.81E+14 2.92E-03 +/- 5.27E-04 Jy Broad-band 1991RC3.9.C...0000d 1
2 B (m_B^0) 14.34 ... mag 6.81E+14 7.82E-03 ... Jy Broad-band 1991RC3.9.C...0000d 2
3 m_p 15.4 +/- 0.4 mag 6.81E+14 2.95E-03 +/- 1.31E-03 Jy Broad-band 1963CGCG2.C...0000Z 3
4 B_T (OHP) 15.41 ... mag 6.81E+14 2.92E-03 ... Jy Broad-band 1999A&AS..139..491M 4
5 J (POSS II) 15.7 ... mag 6.41E+14 2.07E-03 ... Jy Broad-band Isophotal mag 2008ApJS..175...86P 5
6 V_T (OHP) 14.96 ... mag 5.42E+14 3.78E-03 ... Jy Broad-band 1999A&AS..139..491M 6
7 F (POSS II) 15.1 ... mag 4.68E+14 2.81E-03 ... Jy Broad-band Isophotal mag 2008ApJS..175...86P 7
8 H{alpha}+NII (SAO) -13.10 ... log(erg/cm^2^/s) 4.56E+14 7.94E+09 ... Jy-Hz Line 2008A&A...479..603K 8
9 I_T (OHP) 13.94 ... mag 3.79E+14 6.77E-03 ... Jy Broad-band 1999A&AS..139..491M 9
10 H^0^_T(25)_ 12.87 +/- 0.15 mag 1.87E+14 7.68E-03 +/- 1.14E-03 Jy Broad-band 1996ApL&C..35....1G 10
11 H_T(25)_ 13.18 +/- 0.15 mag 1.87E+14 5.77E-03 +/- 8.55E-04 Jy Broad-band 1996ApL&C..35....1G 11
12 HI line (GMRT) 11.5 +/- 1.2 Jy km/s 1.42E+09 5.42E+04 +/- 5.66E+03 Jy-Hz Line 2008MNRAS.386.1667B 12
13 HI (corrected) 12.94 +/- 1.31 Jy km s^-1^ 1.42E+09 6.10E+04 +/- 6.18E+03 Jy-Hz Line 1992ApJS...81....5S 13
14 HI (observed) 12.71 +/- 1.27 Jy km s^-1^ 1.42E+09 5.99E+04 +/- 5.99E+03 Jy-Hz Line 1992ApJS...81....5S 14


Detailed Information for Each Entry

 No. 1
Reference Code : 1991RC3.9.C...0000d
Freq. targeted : B (m_B)             
Measurement    :  15.41       mag                  = 2.92E-29 W m^-2^ Hz^-1^
Uncertainty    :  0.18        mag                  = 5.27E-30
Significance   : rms uncertainty
Freq or Vel.   : 4400         A            (OBS   )= 6.81E+14 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 1222.8          +2659 (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 : 14.34 mag = 7.82E-29 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: 1222.8 +2659 (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 : 1963CGCG2.C...0000Z Freq. targeted : m_p Measurement : 15.4 mag = 2.95E-29 W m^-2^ Hz^-1^ Uncertainty : 0.4 mag = 1.31E-29 Significance : rms noise Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 122248.0 +265900. (B1950) Spatial mode : Estimated by eye Notes : From new raw data Qualifiers :
No. 4 Reference Code : 1999A&AS..139..491M Freq. targeted : B_T (OHP) Measurement : 15.41 mag = 2.92E-29 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: 12 24 48.0 +26 59 31 (B1950) Spatial mode : Total flux Notes : From new raw data Qualifiers :
No. 5 Reference Code : 2008ApJS..175...86P Freq. targeted : J (POSS II) Measurement : 15.7 mag = 2.07E-29 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 18.2 +26 42 54.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From reprocessed raw data Qualifiers : Isophotal mag
No. 6 Reference Code : 1999A&AS..139..491M Freq. targeted : V_T (OHP) Measurement : 14.96 mag = 3.78E-29 W m^-2^ Hz^-1^ Uncertainty : mag = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 5530 A (OBS )= 5.42E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 12 24 48.0 +26 59 31 (B1950) Spatial mode : Total flux Notes : From new raw data Qualifiers :
No. 7 Reference Code : 2008ApJS..175...86P Freq. targeted : F (POSS II) Measurement : 15.1 mag = 2.81E-29 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 18.2 +26 42 54.0 (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 : 2008A&A...479..603K Freq. targeted : H{alpha}+NII (SAO) Measurement : -13.10 log(erg/cm^2^/s) = 7.94E-17 W m^-2^ Uncertainty : log(erg/cm^2^/s) = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 6574 A (REST )= 4.56E+14 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 122517.9 +264253 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 9 Reference Code : 1999A&AS..139..491M Freq. targeted : I_T (OHP) Measurement : 13.94 mag = 6.77E-29 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: 12 24 48.0 +26 59 31 (B1950) Spatial mode : Total flux Notes : From new raw data Qualifiers :
No. 10 Reference Code : 1996ApL&C..35....1G Freq. targeted : H^0^_T(25)_ Measurement : 12.87 mag = 7.68E-29 W m^-2^ Hz^-1^ Uncertainty : 0.15 mag = 1.14E-29 Significance : estimated error Freq or Vel. : 1.60 microns (OBS )= 1.87E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 122248.00 +265931.0 (B1950) Spatial mode : Modelled datum Notes : Homogenized from new and previously published data; Extinction-corrected for internal and Milky Way and K-correction applied Qualifiers :
No. 11 Reference Code : 1996ApL&C..35....1G Freq. targeted : H_T(25)_ Measurement : 13.18 mag = 5.77E-29 W m^-2^ Hz^-1^ Uncertainty : 0.15 mag = 8.55E-30 Significance : estimated error Freq or Vel. : 1.60 microns (OBS )= 1.87E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 122248.00 +265931.0 (B1950) Spatial mode : Modelled datum Notes : Homogenized from new and previously published data Qualifiers :
No. 12 Reference Code : 2008MNRAS.386.1667B Freq. targeted : HI line (GMRT) Measurement : 11.5 Jy km/s = 5.42E-22 W m^-2^ Uncertainty : 1.2 Jy km/s = 5.66E-23 Significance : 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: 12 25 17.90 +26 42 53 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 13 Reference Code : 1992ApJS...81....5S Freq. targeted : HI (corrected) Measurement : 12.94 Jy km s^-1^ = 6.10E-22 W m^-2^ Uncertainty : 1.31 Jy km s^-1^ = 6.18E-23 Significance : internal error Freq or Vel. : 316 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 122247.7 +265929 (B1950) Spatial mode : Integrated from scans; Pointing corrected Notes : From new raw data; Uncorrected for known sources in beam Qualifiers :
No. 14 Reference Code : 1992ApJS...81....5S Freq. targeted : HI (observed) Measurement : 12.71 Jy km s^-1^ = 5.99E-22 W m^-2^ Uncertainty : 1.27 Jy km s^-1^ = 5.99E-23 Significance : internal error Freq or Vel. : 316 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 122247.7 +265929 (B1950) Spatial mode : Integrated from scans Notes : From new raw data; Uncorrected for known sources in beam Qualifiers :

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