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Date and Time of the Query: 2019-04-18 T16:13:31 PDT
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Spectral Energy Distribution (SED) for NGC 7018:

31 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 V (V_25) 13.91 +/- 0.10 mag 5.42E+14 9.93E-03 +/- 9.58E-04 Jy Broad-band 1989ApJS...69..365S 1
2 R_25_ 12.55 +/- 0.34 mag 4.65E+14 2.91E-02 +/- 1.07E-02 Jy Broad-band 1998A&AS..129..399K 2
3 31400 MHz 0.43 +/- .08 Jy 3.14E+10 4.30E-01 +/- 8.00E-02 Jy Broad-band From Kuhr catalog (1981A&AS...45..367K) 1981AJ.....86.1306G 3
4 23 GHz (WMAP) 977 +/- 166 milliJy 2.30E+10 9.77E-01 +/- 1.66E-01 Jy Broad-band 2009MNRAS.392..733M 4
5 22 GHz (ATCA) 0.087 +/- 0.009 Jy 2.20E+10 8.70E-02 +/- 9.00E-03 Jy Broad-band Resolved 2006A&A...445..465R 5
6 18.5 GHz (ATCA) 0.078 +/- 0.004 Jy 1.85E+10 7.80E-02 +/- 4.00E-03 Jy Broad-band Resolved 2006A&A...445..465R 6
7 10695 MHz 1.14 +/- .14 Jy 1.07E+10 1.14E+00 +/- 1.40E-01 Jy Broad-band 1981A&AS...45..367K 7
8 8400 MHz 0.89 ... Jy 8.40E+09 8.90E-01 ... Jy Broad-band 1990PKS90.C...0000W 8
9 8.4 GHz (VLA) 54.0 ... milliJy 8.40E+09 5.40E-02 ... Jy Broad-band 2007ApJS..171...61H 9
10 5009 MHz 4.09 +/- .14 Jy 5.01E+09 4.09E+00 +/- 1.40E-01 Jy Broad-band Recal. to Baars scale by factor of 1.03 1981A&AS...45..367K 10
11 5009 MHz 4.74 +/- .34 Jy 5.01E+09 4.74E+00 +/- 3.40E-01 Jy Broad-band Recal. to Baars scale by factor of 1.03 1981A&AS...45..367K 11
12 5000 MHz 4.8 +/- .37 Jy 5.00E+09 4.80E+00 +/- 3.70E-01 Jy Broad-band Recal. to Baars scale by factor of 0.979 1981A&AS...45..367K 12
13 5000 MHz 3.970 ... Jy 5.00E+09 3.97E+00 ... Jy Broad-band 1990PKS90.C...0000W 13
14 4.85 GHz 3558 +/- 99 milliJy 4.85E+09 3.56E+00 +/- 9.90E-02 Jy Broad-band 1994ApJS...90..179G 14
15 2700 MHz 7.42 +/- .23 Jy 2.70E+09 7.42E+00 +/- 2.30E-01 Jy Broad-band From Kuhr catalog (1981A&AS...45..367K) 1975AuJPA..38....1W 15
16 2700 MHz 6.200 ... Jy 2.70E+09 6.20E+00 ... Jy Broad-band 1990PKS90.C...0000W 16
17 2695 MHz 6.47 +/- .07 Jy 2.70E+09 6.47E+00 +/- 7.00E-02 Jy Broad-band Recal. to Baars scale by factor of 1.011 1981A&AS...45..367K 17
18 2650 MHz 7.62 +/- .23 Jy 2.65E+09 7.62E+00 +/- 2.30E-01 Jy Broad-band From Kuhr catalog (1981A&AS...45..367K) 1975AuJPA..38....1W 18
19 1410 MHz 11.20 ... Jy 1.41E+09 1.12E+01 ... Jy Broad-band 1990PKS90.C...0000W 19
20 1410 MHz 12.96 +/- .19 Jy 1.41E+09 1.30E+01 +/- 1.90E-01 Jy Broad-band Recal. to Baars scale by factor of 1.017 1981A&AS...45..367K 20
21 960 MHz 17.31 +/- .20 Jy 9.60E+08 1.73E+01 +/- 2.00E-01 Jy Broad-band Recal. to Baars scale by factor of 1.029 1981A&AS...45..367K 21
22 635 MHz 24.43 +/- .35 Jy 6.35E+08 2.44E+01 +/- 3.50E-01 Jy Broad-band Recal. to Baars scale by factor of 1.035 1981A&AS...45..367K 22
23 468 MHz 21.44 +/- 5.38 Jy 4.68E+08 2.14E+01 +/- 5.38E+00 Jy Broad-band Recal. to Baars scale by factor of 1.045 1981A&AS...45..367K 23
24 408 MHz 31.00 ... Jy 4.08E+08 3.10E+01 ... Jy Broad-band 1990PKS90.C...0000W 24
25 408 MHz 13.25 +/- 0.57 Jy 4.08E+08 1.32E+01 +/- 5.70E-01 Jy Broad-band Extended source; flux density may be low 1981MNRAS.194..693L 25
26 408 MHz 22 +/- 4.30 Jy 4.08E+08 2.20E+01 +/- 4.30E+00 Jy Broad-band From Kuhr catalog (1981A&AS...45..367K) 1969AuJPA...7....3E 26
27 160 MHz 55.7 +/- 7.20 Jy 1.60E+08 5.57E+01 +/- 7.20E+00 Jy Broad-band Recal. to Baars scale by factor of 1.11 1981A&AS...45..367K 27
28 145 MHz (PAPER) 33.9 ... Jy 1.45E+08 3.39E+01 ... Jy Broad-band 2011ApJ...734L..34J 28
29 80 MHz 61.00 ... Jy 8.00E+07 6.10E+01 ... Jy Broad-band 1990PKS90.C...0000W 29
30 80 MHz 66 +/- 10.00 Jy 8.00E+07 6.60E+01 +/- 1.00E+01 Jy Broad-band Recal. to Baars scale by factor of 1.074 1981A&AS...45..367K 30
31 74 MHz (VLA) 31.11 +/- 3.17 Jy 7.38E+07 3.11E+01 +/- 3.17E+00 Jy Broad-band Corrected for clean bias 2007AJ....134.1245C 31


Detailed Information for Each Entry

 No. 1
Reference Code : 1989ApJS...69..365S
Freq. targeted : V (V_25)            
Measurement    :  13.91       mag                  = 9.93E-29 W m^-2^ Hz^-1^
Uncertainty    :  0.10        mag                  = 9.58E-30
Significance   : typical accuracy
Freq or Vel.   : 5530         A            (OBS   )= 5.42E+14 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 210426.         -253930. (B1950)
Spatial mode   : Flux integrated from map
Notes          : From new raw data; OBJ_NAME modified from published value;
                 Standard Johnson UBVRI filters assumed
Qualifiers     :                                         

No. 2 Reference Code : 1998A&AS..129..399K Freq. targeted : R_25_ Measurement : 12.55 mag = 2.91E-28 W m^-2^ Hz^-1^ Uncertainty : 0.34 mag = 1.07E-28 Significance : estimated error Freq or Vel. : 6450 A (OBS )= 4.65E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 210429.60 -253746.9 (B1950) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 3 Reference Code : 1981AJ.....86.1306G Freq. targeted : 31400 MHz Measurement : 0.43 Jy = 4.30E-27 W m^-2^ Hz^-1^ Uncertainty : .08 Jy = 8.00E-28 Significance : uncertainty Freq or Vel. : 31400 MHz (OBS )= 3.14E+10 Hz Frequency mode : Broad-band measurement Coord. targeted: 210424.90 -253906.0 (B1950) Spatial mode : Not reported in paper Notes : Transformed from previously published data Qualifiers : From Kuhr catalog (1981A&AS...45..367K)
No. 4 Reference Code : 2009MNRAS.392..733M Freq. targeted : 23 GHz (WMAP) Measurement : 977 milliJy = 9.77E-27 W m^-2^ Hz^-1^ Uncertainty : 166 milliJy = 1.66E-27 Significance : uncertainty Freq or Vel. : 23 GHz (OBS )= 2.30E+10 Hz Frequency mode : Broad-band measurement Coord. targeted: 316.8616 -25.4226 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 5 Reference Code : 2006A&A...445..465R Freq. targeted : 22 GHz (ATCA) Measurement : 0.087 Jy = 8.70E-28 W m^-2^ Hz^-1^ Uncertainty : 0.009 Jy = 9.00E-29 Significance : uncertainty Freq or Vel. : 22 GHz (OBS )= 2.20E+10 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Modelled datum Notes : From new raw data Qualifiers : Resolved
No. 6 Reference Code : 2006A&A...445..465R Freq. targeted : 18.5 GHz (ATCA) Measurement : 0.078 Jy = 7.80E-28 W m^-2^ Hz^-1^ Uncertainty : 0.004 Jy = 4.00E-29 Significance : uncertainty Freq or Vel. : 18.5 GHz (OBS )= 1.85E+10 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Modelled datum Notes : From new raw data Qualifiers : Resolved
No. 7 Reference Code : 1981A&AS...45..367K Freq. targeted : 10695 MHz Measurement : 1.14 Jy = 1.14E-26 W m^-2^ Hz^-1^ Uncertainty : .14 Jy = 1.40E-27 Significance : uncertainty Freq or Vel. : 10695 MHz (OBS )= 1.07E+10 Hz Frequency mode : Broad-band measurement Coord. targeted: 210424.90 -253906.0 (B1950) Spatial mode : Not reported in paper Notes : From new raw data Qualifiers :
No. 8 Reference Code : 1990PKS90.C...0000W Freq. targeted : 8400 MHz Measurement : 0.89 Jy = 8.90E-27 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 8400 MHz (OBS )= 8.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 21 04 24.8 -25 39 06 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 9 Reference Code : 2007ApJS..171...61H Freq. targeted : 8.4 GHz (VLA) Measurement : 54.0 milliJy = 5.40E-28 W m^-2^ Hz^-1^ Uncertainty : milliJy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 8.4 GHz (OBS )= 8.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 21 07 25.64 -25 25 43.2 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 10 Reference Code : 1981A&AS...45..367K Freq. targeted : 5009 MHz Measurement : 4.09 Jy = 4.09E-26 W m^-2^ Hz^-1^ Uncertainty : .14 Jy = 1.40E-27 Significance : uncertainty Freq or Vel. : 5009 MHz (OBS )= 5.01E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 210424.90 -253906.0 (B1950) Spatial mode : Not reported in paper Notes : Recalibrated data Qualifiers : Recal. to Baars scale by factor of 1.03
No. 11 Reference Code : 1981A&AS...45..367K Freq. targeted : 5009 MHz Measurement : 4.74 Jy = 4.74E-26 W m^-2^ Hz^-1^ Uncertainty : .34 Jy = 3.40E-27 Significance : uncertainty Freq or Vel. : 5009 MHz (OBS )= 5.01E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 210424.90 -253906.0 (B1950) Spatial mode : Not reported in paper Notes : Recalibrated data Qualifiers : Recal. to Baars scale by factor of 1.03
No. 12 Reference Code : 1981A&AS...45..367K Freq. targeted : 5000 MHz Measurement : 4.8 Jy = 4.80E-26 W m^-2^ Hz^-1^ Uncertainty : .37 Jy = 3.70E-27 Significance : uncertainty Freq or Vel. : 5000 MHz (OBS )= 5.00E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 210424.90 -253906.0 (B1950) Spatial mode : Not reported in paper Notes : Recalibrated data Qualifiers : Recal. to Baars scale by factor of 0.979
No. 13 Reference Code : 1990PKS90.C...0000W Freq. targeted : 5000 MHz Measurement : 3.970 Jy = 3.97E-26 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 5000 MHz (OBS )= 5.00E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 21 04 24.8 -25 39 06 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 14 Reference Code : 1994ApJS...90..179G Freq. targeted : 4.85 GHz Measurement : 3558 milliJy = 3.56E-26 W m^-2^ Hz^-1^ Uncertainty : 99 milliJy = 9.90E-28 Significance : rms noise Freq or Vel. : 4.85 GHz (OBS )= 4.85E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 210721.2 -252657 (J2000) Spatial mode : Modelled datum Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 15 Reference Code : 1975AuJPA..38....1W Freq. targeted : 2700 MHz Measurement : 7.42 Jy = 7.42E-26 W m^-2^ Hz^-1^ Uncertainty : .23 Jy = 2.30E-27 Significance : uncertainty Freq or Vel. : 2700 MHz (OBS )= 2.70E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 210424.90 -253906.0 (B1950) Spatial mode : Not reported in paper Notes : Transformed from previously published data Qualifiers : From Kuhr catalog (1981A&AS...45..367K)
No. 16 Reference Code : 1990PKS90.C...0000W Freq. targeted : 2700 MHz Measurement : 6.200 Jy = 6.20E-26 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 2700 MHz (OBS )= 2.70E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 21 04 24.8 -25 39 06 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 17 Reference Code : 1981A&AS...45..367K Freq. targeted : 2695 MHz Measurement : 6.47 Jy = 6.47E-26 W m^-2^ Hz^-1^ Uncertainty : .07 Jy = 7.00E-28 Significance : uncertainty Freq or Vel. : 2695 MHz (OBS )= 2.70E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 210424.90 -253906.0 (B1950) Spatial mode : Not reported in paper Notes : Recalibrated data Qualifiers : Recal. to Baars scale by factor of 1.011
No. 18 Reference Code : 1975AuJPA..38....1W Freq. targeted : 2650 MHz Measurement : 7.62 Jy = 7.62E-26 W m^-2^ Hz^-1^ Uncertainty : .23 Jy = 2.30E-27 Significance : uncertainty Freq or Vel. : 2650 MHz (OBS )= 2.65E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 210424.90 -253906.0 (B1950) Spatial mode : Not reported in paper Notes : Transformed from previously published data Qualifiers : From Kuhr catalog (1981A&AS...45..367K)
No. 19 Reference Code : 1990PKS90.C...0000W Freq. targeted : 1410 MHz Measurement : 11.20 Jy = 1.12E-25 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 1410 MHz (OBS )= 1.41E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 21 04 24.8 -25 39 06 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 20 Reference Code : 1981A&AS...45..367K Freq. targeted : 1410 MHz Measurement : 12.96 Jy = 1.30E-25 W m^-2^ Hz^-1^ Uncertainty : .19 Jy = 1.90E-27 Significance : uncertainty Freq or Vel. : 1410 MHz (OBS )= 1.41E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 210424.90 -253906.0 (B1950) Spatial mode : Not reported in paper Notes : Recalibrated data Qualifiers : Recal. to Baars scale by factor of 1.017
No. 21 Reference Code : 1981A&AS...45..367K Freq. targeted : 960 MHz Measurement : 17.31 Jy = 1.73E-25 W m^-2^ Hz^-1^ Uncertainty : .20 Jy = 2.00E-27 Significance : uncertainty Freq or Vel. : 960 MHz (OBS )= 9.60E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 210424.90 -253906.0 (B1950) Spatial mode : Not reported in paper Notes : Recalibrated data Qualifiers : Recal. to Baars scale by factor of 1.029
No. 22 Reference Code : 1981A&AS...45..367K Freq. targeted : 635 MHz Measurement : 24.43 Jy = 2.44E-25 W m^-2^ Hz^-1^ Uncertainty : .35 Jy = 3.50E-27 Significance : uncertainty Freq or Vel. : 635 MHz (OBS )= 6.35E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 210424.90 -253906.0 (B1950) Spatial mode : Not reported in paper Notes : Recalibrated data Qualifiers : Recal. to Baars scale by factor of 1.035
No. 23 Reference Code : 1981A&AS...45..367K Freq. targeted : 468 MHz Measurement : 21.44 Jy = 2.14E-25 W m^-2^ Hz^-1^ Uncertainty : 5.38 Jy = 5.38E-26 Significance : uncertainty Freq or Vel. : 468 MHz (OBS )= 4.68E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 210424.90 -253906.0 (B1950) Spatial mode : Not reported in paper Notes : Recalibrated data Qualifiers : Recal. to Baars scale by factor of 1.045
No. 24 Reference Code : 1990PKS90.C...0000W Freq. targeted : 408 MHz Measurement : 31.00 Jy = 3.10E-25 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 408 MHz (OBS )= 4.08E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 21 04 24.8 -25 39 06 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 25 Reference Code : 1981MNRAS.194..693L Freq. targeted : 408 MHz Measurement : 13.25 Jy = 1.32E-25 W m^-2^ Hz^-1^ Uncertainty : 0.57 Jy = 5.70E-27 Significance : rms noise Freq or Vel. : 408 MHz (OBS )= 4.08E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 210424.9 -253819 (B1950) Spatial mode : Modelled datum Notes : From new raw data; Corrected for contaminating sources Qualifiers : Extended source; flux density may be low
No. 26 Reference Code : 1969AuJPA...7....3E Freq. targeted : 408 MHz Measurement : 22 Jy = 2.20E-25 W m^-2^ Hz^-1^ Uncertainty : 4.30 Jy = 4.30E-26 Significance : uncertainty Freq or Vel. : 408 MHz (OBS )= 4.08E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 210424.90 -253906.0 (B1950) Spatial mode : Not reported in paper Notes : Transformed from previously published data Qualifiers : From Kuhr catalog (1981A&AS...45..367K)
No. 27 Reference Code : 1981A&AS...45..367K Freq. targeted : 160 MHz Measurement : 55.7 Jy = 5.57E-25 W m^-2^ Hz^-1^ Uncertainty : 7.20 Jy = 7.20E-26 Significance : uncertainty Freq or Vel. : 160 MHz (OBS )= 1.60E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 210424.90 -253906.0 (B1950) Spatial mode : Not reported in paper Notes : Recalibrated data Qualifiers : Recal. to Baars scale by factor of 1.11
No. 28 Reference Code : 2011ApJ...734L..34J Freq. targeted : 145 MHz (PAPER) Measurement : 33.9 Jy = 3.39E-25 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 145 MHz (OBS )= 1.45E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 316.85 -25.45 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 29 Reference Code : 1990PKS90.C...0000W Freq. targeted : 80 MHz Measurement : 61.00 Jy = 6.10E-25 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 80 MHz (OBS )= 8.00E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 21 04 24.8 -25 39 06 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 30 Reference Code : 1981A&AS...45..367K Freq. targeted : 80 MHz Measurement : 66 Jy = 6.60E-25 W m^-2^ Hz^-1^ Uncertainty : 10.00 Jy = 1.00E-25 Significance : uncertainty Freq or Vel. : 80 MHz (OBS )= 8.00E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 210424.90 -253906.0 (B1950) Spatial mode : Not reported in paper Notes : Recalibrated data Qualifiers : Recal. to Baars scale by factor of 1.074
No. 31 Reference Code : 2007AJ....134.1245C Freq. targeted : 74 MHz (VLA) Measurement : 31.11 Jy = 3.11E-25 W m^-2^ Hz^-1^ Uncertainty : 3.17 Jy = 3.17E-26 Significance : rms uncertainty Freq or Vel. : 73.8 MHz (OBS )= 7.38E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 21 07 24.45 -25 25 45.7 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Corrected for clean bias

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