NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-25 T03:20:20 PDT
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Spectral Energy Distribution (SED) for NGC 7718:

28 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 FUV (GALEX) AB 19.7461 +/- 0.126691 mag 1.95E+15 4.59E-05 +/- 5.35E-06 Jy Broad-band Kron flux in elliptical aperture 2012GASC..C...0000S 1
2 FUV (GALEX) AB 22.1159 +/- 0.307006 mag 1.95E+15 5.17E-06 +/- 1.46E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 2
3 NUV (GALEX) AB 18.7081 +/- 0.0469712 mag 1.29E+15 1.19E-04 +/- 5.16E-06 Jy Broad-band Kron flux in elliptical aperture 2012GASC..C...0000S 3
4 NUV (GALEX) AB 21.3883 +/- 0.136998 mag 1.29E+15 1.01E-05 +/- 1.28E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 4
5 m_p 15.2 +/- 0.4 mag 6.81E+14 3.54E-03 +/- 1.58E-03 Jy Broad-band 1968CGCG6.C...0000Z 5
6 B (m_B) 15.01 +/- 0.18 mag 6.81E+14 4.22E-03 +/- 7.61E-04 Jy Broad-band 1991RC3.9.C...0000d 6
7 B (m_B^0) 14.56 ... mag 6.81E+14 6.39E-03 ... Jy Broad-band 1991RC3.9.C...0000d 7
8 I 12.83 +/- 0.04 mag 3.79E+14 1.88E-02 +/- 6.93E-04 Jy Broad-band Observed magnitude 2007ApJS..172..599S 8
9 J (2MASS/FLWO) 13.089 +/- 0.032 mag 2.43E+14 9.27E-03 +/- 2.73E-04 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 9
10 J (2MASS/FLWO) 12.975 +/- 0.007 mag 2.43E+14 1.03E-02 +/- 6.64E-05 Jy Broad-band 4" aperture 2006AJ....131.1163S 10
11 J_14arcsec (2MASS) 12.561 +/- 0.011 mag 2.40E+14 1.51E-02 +/- 1.53E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 11
12 J 11.759 +/- 0.037 mag 2.40E+14 3.15E-02 +/- 1.09E-03 Jy Broad-band 20032MASX.C.......: 12
13 J 11.979 +/- 0.027 mag 2.40E+14 2.57E-02 +/- 6.48E-04 Jy Broad-band 39.8 x 29.5 arcsec integration area. 20032MASX.C.......: 13
14 H_14arcsec (2MASS) 11.772 +/- 0.013 mag 1.82E+14 2.00E-02 +/- 2.41E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 14
15 H 11.263 +/- 0.035 mag 1.82E+14 3.20E-02 +/- 1.05E-03 Jy Broad-band 39.8 x 29.5 arcsec integration area. 20032MASX.C.......: 15
16 H 11.083 +/- 0.039 mag 1.82E+14 3.78E-02 +/- 1.38E-03 Jy Broad-band 20032MASX.C.......: 16
17 H (2MASS/FLWO) 12.144 +/- 0.01 mag 1.80E+14 1.42E-02 +/- 1.31E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 17
18 H (2MASS/FLWO) 12.207 +/- 0.035 mag 1.80E+14 1.34E-02 +/- 4.32E-04 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 18
19 K_s (2MASS/FLWO) 11.818 +/- 0.006 mag 1.39E+14 1.25E-02 +/- 6.91E-05 Jy Broad-band 4" aperture 2006AJ....131.1163S 19
20 K_s (2MASS/FLWO) 12.126 +/- 0.042 mag 1.39E+14 9.41E-03 +/- 3.64E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 20
21 K_s_14arcsec (2MASS) 11.410 +/- 0.017 mag 1.38E+14 1.82E-02 +/- 2.87E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 21
22 K_s 10.692 +/- 0.047 mag 1.38E+14 3.53E-02 +/- 1.56E-03 Jy Broad-band 20032MASX.C.......: 22
23 K_s 10.890 +/- 0.053 mag 1.38E+14 2.94E-02 +/- 1.47E-03 Jy Broad-band 39.8 x 29.5 arcsec integration area. 20032MASX.C.......: 23
24 HI 21 cm line 1.64 ... Jy km s^-1^ 1.42E+09 7.53E+03 ... Jy-Hz Line Corrected line flux 2005ApJS..160..149S 24
25 HI 21 cm line 1.37 ... Jy km s^-1^ 1.42E+09 6.29E+03 ... Jy-Hz Line 2005ApJS..160..149S 25
26 HI 21cm line Arecibo 1.75 ... Jy km/s 1.42E+09 8.01E+03 ... Jy-Hz Line S/N = 8.3 2009ApJS..183..214M 26
27 HI 21 cm line 1.72 +/- 0.20 Jy km s^-1^ 1.42E+09 7.90E+03 +/- 9.18E+02 Jy-Hz Line Self-absorption corrected line flux 2005ApJS..160..149S 27
28 HI (21 cm line) 1.35 +/- 0.26 Jy km s^-1^ 1.42E+09 6.18E+03 +/- 1.19E+03 Jy-Hz Line 1989H&RHI.C...0000H 28


Detailed Information for Each Entry

 No. 1
Reference Code : 2012GASC..C...0000S
Freq. targeted : FUV (GALEX) AB      
Measurement    :  19.7461     mag                  = 4.59E-31 W m^-2^ Hz^-1^
Uncertainty    :  0.126691    mag                  = 5.35E-32
Significance   : uncertainty
Freq or Vel.   : 1538.6       A            (OBS   )= 1.95E+15 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 354.52101720656 25.718895902453 (J2000)
Spatial mode   : Flux integrated from map
Notes          : From new raw data
Qualifiers     : Kron flux in elliptical aperture        

No. 2 Reference Code : 2012GASC..C...0000S Freq. targeted : FUV (GALEX) AB Measurement : 22.1159 mag = 5.17E-32 W m^-2^ Hz^-1^ Uncertainty : 0.307006 mag = 1.46E-32 Significance : uncertainty Freq or Vel. : 1538.6 A (OBS )= 1.95E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 354.52101720656 25.718895902453 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Flux in 7.5 arcsec diameter aperture
No. 3 Reference Code : 2012GASC..C...0000S Freq. targeted : NUV (GALEX) AB Measurement : 18.7081 mag = 1.19E-30 W m^-2^ Hz^-1^ Uncertainty : 0.0469712 mag = 5.16E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 354.52101720656 25.718895902453 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Kron flux in elliptical aperture
No. 4 Reference Code : 2012GASC..C...0000S Freq. targeted : NUV (GALEX) AB Measurement : 21.3883 mag = 1.01E-31 W m^-2^ Hz^-1^ Uncertainty : 0.136998 mag = 1.28E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 354.52101720656 25.718895902453 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Flux in 7.5 arcsec diameter aperture
No. 5 Reference Code : 1968CGCG6.C...0000Z Freq. targeted : m_p Measurement : 15.2 mag = 3.54E-29 W m^-2^ Hz^-1^ Uncertainty : 0.4 mag = 1.58E-29 Significance : rms noise Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 233530.0 +252500. (B1950) Spatial mode : Estimated by eye Notes : From new raw data Qualifiers :
No. 6 Reference Code : 1991RC3.9.C...0000d Freq. targeted : B (m_B) Measurement : 15.01 mag = 4.22E-29 W m^-2^ Hz^-1^ Uncertainty : 0.18 mag = 7.61E-30 Significance : rms uncertainty Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 2335.5 +2525 (B1950) Spatial mode : Multiple methods Notes : Homogenized from new and previously published data; Standard Johnson UBVRI filters assumed Qualifiers :
No. 7 Reference Code : 1991RC3.9.C...0000d Freq. targeted : B (m_B^0) Measurement : 14.56 mag = 6.39E-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: 2335.5 +2525 (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. 8 Reference Code : 2007ApJS..172..599S Freq. targeted : I Measurement : 12.83 mag = 1.88E-28 W m^-2^ Hz^-1^ Uncertainty : 0.04 mag = 6.93E-30 Significance : uncertainty Freq or Vel. : 7900 A (OBS )= 3.79E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 23 38 05.1 +25 43 10 (J2000) Spatial mode : Total flux Notes : Averaged new and previously published data; Standard Cousins R_C, I_C filters assumed Qualifiers : Observed magnitude
No. 9 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/FLWO) Measurement : 13.089 mag = 9.27E-29 W m^-2^ Hz^-1^ Uncertainty : 0.032 mag = 2.73E-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. 10 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/FLWO) Measurement : 12.975 mag = 1.03E-28 W m^-2^ Hz^-1^ Uncertainty : 0.007 mag = 6.64E-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. 11 Reference Code : 20032MASX.C.......: Freq. targeted : J_14arcsec (2MASS) Measurement : 12.561 mag = 1.51E-28 W m^-2^ Hz^-1^ Uncertainty : 0.011 mag = 1.53E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 233805.01 +254311.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 12 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 11.759 mag = 3.15E-28 W m^-2^ Hz^-1^ Uncertainty : 0.037 mag = 1.09E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 233805.01 +254311.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 13 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 11.979 mag = 2.57E-28 W m^-2^ Hz^-1^ Uncertainty : 0.027 mag = 6.48E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 233805.01 +254311.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 39.8 x 29.5 arcsec integration area.
No. 14 Reference Code : 20032MASX.C.......: Freq. targeted : H_14arcsec (2MASS) Measurement : 11.772 mag = 2.00E-28 W m^-2^ Hz^-1^ Uncertainty : 0.013 mag = 2.41E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 233805.01 +254311.0 (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 : H Measurement : 11.263 mag = 3.20E-28 W m^-2^ Hz^-1^ Uncertainty : 0.035 mag = 1.05E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 233805.01 +254311.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 39.8 x 29.5 arcsec integration area.
No. 16 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 11.083 mag = 3.78E-28 W m^-2^ Hz^-1^ Uncertainty : 0.039 mag = 1.38E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 233805.01 +254311.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 17 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/FLWO) Measurement : 12.144 mag = 1.42E-28 W m^-2^ Hz^-1^ Uncertainty : 0.01 mag = 1.31E-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. 18 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/FLWO) Measurement : 12.207 mag = 1.34E-28 W m^-2^ Hz^-1^ Uncertainty : 0.035 mag = 4.32E-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. 19 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/FLWO) Measurement : 11.818 mag = 1.25E-28 W m^-2^ Hz^-1^ Uncertainty : 0.006 mag = 6.91E-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. 20 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/FLWO) Measurement : 12.126 mag = 9.41E-29 W m^-2^ Hz^-1^ Uncertainty : 0.042 mag = 3.64E-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. 21 Reference Code : 20032MASX.C.......: Freq. targeted : K_s_14arcsec (2MASS) Measurement : 11.410 mag = 1.82E-28 W m^-2^ Hz^-1^ Uncertainty : 0.017 mag = 2.87E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 233805.01 +254311.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 22 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 10.692 mag = 3.53E-28 W m^-2^ Hz^-1^ Uncertainty : 0.047 mag = 1.56E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 233805.01 +254311.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 23 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 10.890 mag = 2.94E-28 W m^-2^ Hz^-1^ Uncertainty : 0.053 mag = 1.47E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 233805.01 +254311.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 39.8 x 29.5 arcsec integration area.
No. 24 Reference Code : 2005ApJS..160..149S Freq. targeted : HI 21 cm line Measurement : 1.64 Jy km s^-1^ = 7.53E-23 W m^-2^ Uncertainty : Jy km s^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 9443 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 23 38 05.1 +25 43 10 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Corrected line flux
No. 25 Reference Code : 2005ApJS..160..149S Freq. targeted : HI 21 cm line Measurement : 1.37 Jy km s^-1^ = 6.29E-23 W m^-2^ Uncertainty : Jy km s^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 9443 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 23 38 05.1 +25 43 10 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 26 Reference Code : 2009ApJS..183..214M Freq. targeted : HI 21cm line Arecibo Measurement : 1.75 Jy km/s = 8.01E-23 W m^-2^ Uncertainty : Jy km/s = 0.00E+00 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: 23 38 05.7 +25 43 18 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : S/N = 8.3
No. 27 Reference Code : 2005ApJS..160..149S Freq. targeted : HI 21 cm line Measurement : 1.72 Jy km s^-1^ = 7.90E-23 W m^-2^ Uncertainty : 0.20 Jy km s^-1^ = 9.18E-24 Significance : uncertainty Freq or Vel. : 9443 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 23 38 05.1 +25 43 10 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Self-absorption corrected line flux
No. 28 Reference Code : 1989H&RHI.C...0000H Freq. targeted : HI (21 cm line) Measurement : 1.35 Jy km s^-1^ = 6.18E-23 W m^-2^ Uncertainty : 0.26 Jy km s^-1^ = 1.19E-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: 233535.9 +252607. (B1950) Spatial mode : Not reported in paper Notes : Transformed from previously published data Qualifiers :

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