NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-02-18 T21:37:44 PST
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Spectral Energy Distribution (SED) for NGC 4177:

22 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 J (2MASS/CTIO) 13.564 +/- 0.053 mag 2.43E+14 5.98E-03 +/- 2.92E-04 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 1
2 J (2MASS/CTIO) 13.366 +/- 0.011 mag 2.43E+14 7.18E-03 +/- 7.27E-05 Jy Broad-band 4" aperture 2006AJ....131.1163S 2
3 J 10.727 +/- 0.022 mag 2.40E+14 8.15E-02 +/- 1.67E-03 Jy Broad-band 93.4 x 50.4 arcsec integration area. 20032MASX.C.......: 3
4 J 10.419 +/- 0.023 mag 2.40E+14 1.08E-01 +/- 2.32E-03 Jy Broad-band 20032MASX.C.......: 4
5 J_14arcsec (2MASS) 12.572 +/- 0.012 mag 2.40E+14 1.49E-02 +/- 1.66E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 5
6 H 10.076 +/- 0.028 mag 1.82E+14 9.55E-02 +/- 2.49E-03 Jy Broad-band 93.4 x 50.4 arcsec integration area. 20032MASX.C.......: 6
7 H 9.777 +/- 0.025 mag 1.82E+14 1.26E-01 +/- 2.93E-03 Jy Broad-band 20032MASX.C.......: 7
8 H_14arcsec (2MASS) 11.891 +/- 0.013 mag 1.82E+14 1.79E-02 +/- 2.16E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 8
9 H (2MASS/CTIO) 12.649 +/- 0.03 mag 1.80E+14 8.93E-03 +/- 2.47E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 9
10 H (2MASS/CTIO) 13.036 +/- 0.069 mag 1.80E+14 6.25E-03 +/- 3.97E-04 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 10
11 K_s (2MASS/CTIO) 12.722 +/- 0.077 mag 1.39E+14 5.43E-03 +/- 3.85E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 11
12 K_s (2MASS/CTIO) 12.31 +/- 0.036 mag 1.39E+14 7.94E-03 +/- 2.63E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 12
13 K_s 9.592 +/- 0.044 mag 1.38E+14 9.71E-02 +/- 4.02E-03 Jy Broad-band 20032MASX.C.......: 13
14 K_s_14arcsec (2MASS) 11.585 +/- 0.022 mag 1.38E+14 1.55E-02 +/- 3.17E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 14
15 K_s 9.799 +/- 0.048 mag 1.38E+14 8.02E-02 +/- 3.63E-03 Jy Broad-band 93.4 x 50.4 arcsec integration area. 20032MASX.C.......: 15
16 12 microns (IRAS) 1.195E-01 +/- 30 % Jy 2.50E+13 1.20E-01 +/- 3.58E-02 Jy Broad-band IRAS quality flag = 2 1990IRASF.C...0000M 16
17 25 microns (IRAS) ... <3.880E-01 Jy 1.20E+13 < 3.88E-01 Jy Broad-band 1990IRASF.C...0000M 17
18 60 microns (IRAS) 8.890E-01 +/- 9 % Jy 5.00E+12 8.89E-01 +/- 8.00E-02 Jy Broad-band IRAS quality flag = 3 1990IRASF.C...0000M 18
19 100 microns (IRAS) 2.934E+00 +/- 9 % Jy 3.00E+12 2.93E+00 +/- 2.64E-01 Jy Broad-band IRAS quality flag = 2 1990IRASF.C...0000M 19
20 HI (21 cm line) 15.02 +/- 0.10 m_21 mag 1.42E+09 4.29E+04 +/- 4.14E+03 Jy-Hz Line m_21 equiv. to S(HI) = 4.285E-22 W m^-2 1991RC3.9.C...0000d 20
21 HI (21 cm line) 8.88 +/- 1.10 Jy km s^-1^ 1.42E+09 4.13E+04 +/- 5.12E+03 Jy-Hz Line 1989H&RHI.C...0000H 21
22 1.4GHz 17.0 +/- 1.8 milliJy 1.40E+09 1.70E-02 +/- 1.80E-03 Jy Broad-band 1998AJ....115.1693C 22


Detailed Information for Each Entry

 No. 1
Reference Code : 2006AJ....131.1163S
Freq. targeted : J (2MASS/CTIO)      
Measurement    :  13.564      mag                  = 5.98E-29 W m^-2^ Hz^-1^
Uncertainty    :  0.053       mag                  = 2.92E-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; Poor quality               

No. 2 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 13.366 mag = 7.18E-29 W m^-2^ Hz^-1^ Uncertainty : 0.011 mag = 7.27E-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. 3 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 10.727 mag = 8.15E-28 W m^-2^ Hz^-1^ Uncertainty : 0.022 mag = 1.67E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 121241.26 -140052.4 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 93.4 x 50.4 arcsec integration area.
No. 4 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 10.419 mag = 1.08E-27 W m^-2^ Hz^-1^ Uncertainty : 0.023 mag = 2.32E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 121241.26 -140052.4 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 5 Reference Code : 20032MASX.C.......: Freq. targeted : J_14arcsec (2MASS) Measurement : 12.572 mag = 1.49E-28 W m^-2^ Hz^-1^ Uncertainty : 0.012 mag = 1.66E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 121241.26 -140052.4 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 6 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 10.076 mag = 9.55E-28 W m^-2^ Hz^-1^ Uncertainty : 0.028 mag = 2.49E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 121241.26 -140052.4 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 93.4 x 50.4 arcsec integration area.
No. 7 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 9.777 mag = 1.26E-27 W m^-2^ Hz^-1^ Uncertainty : 0.025 mag = 2.93E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 121241.26 -140052.4 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 8 Reference Code : 20032MASX.C.......: Freq. targeted : H_14arcsec (2MASS) Measurement : 11.891 mag = 1.79E-28 W m^-2^ Hz^-1^ Uncertainty : 0.013 mag = 2.16E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 121241.26 -140052.4 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 9 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 12.649 mag = 8.93E-29 W m^-2^ Hz^-1^ Uncertainty : 0.03 mag = 2.47E-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 : H (2MASS/CTIO) Measurement : 13.036 mag = 6.25E-29 W m^-2^ Hz^-1^ Uncertainty : 0.069 mag = 3.97E-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; Poor quality
No. 11 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 12.722 mag = 5.43E-29 W m^-2^ Hz^-1^ Uncertainty : 0.077 mag = 3.85E-30 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
No. 12 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 12.31 mag = 7.94E-29 W m^-2^ Hz^-1^ Uncertainty : 0.036 mag = 2.63E-30 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. 13 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 9.592 mag = 9.71E-28 W m^-2^ Hz^-1^ Uncertainty : 0.044 mag = 4.02E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 121241.26 -140052.4 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 14 Reference Code : 20032MASX.C.......: Freq. targeted : K_s_14arcsec (2MASS) Measurement : 11.585 mag = 1.55E-28 W m^-2^ Hz^-1^ Uncertainty : 0.022 mag = 3.17E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 121241.26 -140052.4 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 15 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 9.799 mag = 8.02E-28 W m^-2^ Hz^-1^ Uncertainty : 0.048 mag = 3.63E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 121241.26 -140052.4 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 93.4 x 50.4 arcsec integration area.
No. 16 Reference Code : 1990IRASF.C...0000M Freq. targeted : 12 microns (IRAS) Measurement : 1.195E-01 Jy = 1.20E-27 W m^-2^ Hz^-1^ Uncertainty : 30 % Jy = 3.58E-28 Significance : uncertainty Freq or Vel. : 12 microns (OBS )= 2.50E+13 Hz Frequency mode : Broad-band measurement Coord. targeted: 121006.9 -134413 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 2
No. 17 Reference Code : 1990IRASF.C...0000M Freq. targeted : 25 microns (IRAS) Measurement : <3.880E-01 Jy < 3.88E-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: 121006.9 -134413 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 18 Reference Code : 1990IRASF.C...0000M Freq. targeted : 60 microns (IRAS) Measurement : 8.890E-01 Jy = 8.89E-27 W m^-2^ Hz^-1^ Uncertainty : 9 % Jy = 8.00E-28 Significance : uncertainty Freq or Vel. : 60 microns (OBS )= 5.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 121006.9 -134413 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 3
No. 19 Reference Code : 1990IRASF.C...0000M Freq. targeted : 100 microns (IRAS) Measurement : 2.934E+00 Jy = 2.93E-26 W m^-2^ Hz^-1^ Uncertainty : 9 % Jy = 2.64E-27 Significance : uncertainty Freq or Vel. : 100 microns (OBS )= 3.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 121006.9 -134413 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 2
No. 20 Reference Code : 1991RC3.9.C...0000d Freq. targeted : HI (21 cm line) Measurement : 15.02 m_21 mag = 4.29E-22 W m^-2^ Uncertainty : 0.10 m_21 mag = 4.14E-23 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: 121006.7 -134411 (B1950) Spatial mode : Multiple methods Notes : Homogenized from new and previously published data Qualifiers : m_21 equiv. to S(HI) = 4.285E-22 W m^-2
No. 21 Reference Code : 1989H&RHI.C...0000H Freq. targeted : HI (21 cm line) Measurement : 8.88 Jy km s^-1^ = 4.13E-22 W m^-2^ Uncertainty : 1.10 Jy km s^-1^ = 5.12E-23 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: 121012. -134400. (B1950) Spatial mode : Not reported in paper Notes : Transformed from previously published data Qualifiers :
No. 22 Reference Code : 1998AJ....115.1693C Freq. targeted : 1.4GHz Measurement : 17.0 milliJy = 1.70E-28 W m^-2^ Hz^-1^ Uncertainty : 1.8 milliJy = 1.80E-29 Significance : uncertainty Freq or Vel. : 1.40 GHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 12 12 40.81 -14 00 55.6 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :

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