Source page for 3C20

FieldValueUnitsConverted fieldValueUnits
Source name3C20   
Source classN   
178-MHz flux46.8Jy178-MHz luminosity2.97 × 1026W/Hz/sr
High-resolution map frequency8.41GHz   
High-resolution map resolution0.220arcsecHigh-resolution map spatial resolution0.650kpc
High-resolution map dynamic range2080   
Low-resolution map frequency8.41GHz   
Low-resolution map resolution1.10arcsecLow-resolution map spatial resolution3.25kpc
Low-resolution map dynamic range4350   
Beams across source (high resolution)214   
Beams across source (low resolution)42.8   
Total map flux2.290JyTotal map luminosity1.456 × 1025W/Hz/sr
Total map flux error0.069JyTotal map luminosity error4.4 × 1023W/Hz/sr
Core flux0.0033JyCore luminosity2.2 × 1022W/Hz/sr
Core flux error0.0006JyCore luminosity error4 × 1021W/Hz/sr
Core prominence0.000074   
Core prominence error0.00001   
Total source size (hotspot distances)46.14arcsecTotal source size (hotspot distances)136.3kpc
Total source size (sum of linear lobe lengths)47.11arcsecTotal source size (sum of linear lobe lengths)139.1kpc
Total source size (sum of largest linear lobe sizes)50.99arcsecTotal source size (sum of largest linear lobe sizes)150.6kpc
Source recession coeff. (zeta)0.9794   
Recession asymmetry (delta)1.026   
N lobe axial ratio1.871   
S lobe axial ratio2.520   
Average axial ratio2.195   
Axial ratio asymmetry (longer lobe)1.347   
Axial ratio asymmetry (jet side)0.7426   
Fractional separation difference (x_lobe)0.03275   
Fractional separation difference (x_jet)-0.03275   
N lobe core-hotspot distance23.41arcsecN lobe core-hotspot distance69.14kpc
N lobe angular length25.91arcsecN lobe length71.50kpc
N lobe length resolution correction1.70arcsecN lobe length resolution correction5.02kpc
N lobe largest angular size26.36arcsecN lobe LLS72.83kpc
N lobe largest angular size r.c.1.70arcsecN lobe LLS r.c.5.02kpc
N lobe angular width13.18arcsecN lobe width38.92kpc
N lobe max angular width30.91arcsecN lobe max width91.29kpc
N lobe flux1.23JyN lobe luminosity7.82 × 1024W/Hz/sr
N lobe flux error0.037JyN lobe luminosity error2.4 × 1023W/Hz/sr
N lobe fractional length1.00   
N lobe fractional max width position0.09   
N lobe depolarization0.5   
S lobe core-hotspot distance22.73arcsecS lobe core-hotspot distance67.13kpc
S lobe angular length24.55arcsecS lobe length67.63kpc
S lobe length resolution correction1.65arcsecS lobe length resolution correction4.87kpc
S lobe largest angular size28.18arcsecS lobe LLS77.76kpc
S lobe largest angular size r.c.1.85arcsecS lobe LLS r.c.5.46kps
S lobe angular width10.45arcsecS lobe width30.86kpc
S lobe max angular width27.73arcsecS lobe max width81.89kpc
S lobe flux1.06JyS lobe luminosity6.74 × 1024W/Hz/sr
S lobe flux error0.032JyS lobe luminosity error2.0 × 1023W/Hz/sr
S lobe fractional length1.00   
S lobe fractional max width position0.11   
S lobe depolarization0.67   
Straight jet sideN   
Straight jet statusDefinite   
Straight jet flux0.007JyStraight jet luminosity4 × 1022W/Hz/sr
Straight jet flux error0.005JyStraight jet luminosity error3 × 1022W/Hz/sr
Straight jet angular length12.40arcsecStraight jet length36.62kpc
Straight jet angular position4.40arcsecStraight jet position13.0kpc
Straight counterjet statusUndetected   
Straight counterjet flux<0.0090JyStraight counterjet luminosity<5.6 × 1022W/Hz/sr
Straight counterjet flux error--JyStraight counterjet luminosity error--W/Hz/sr
Straight counterjet angular length--arcsecStraight counterjet length--kpc
Straight counterjet angular position--arcsecStraight counterjet position--kpc
Straight jet prominence0.0001   
Straight jet prominence error0.0001   
Straight counter jet prominence0.00019   
Straight counter jet prominence error--   
Total jet sideN   
Total jet statusDefinite   
Total jet flux0.023JyTotal jet luminosity1.4 × 1023W/Hz/sr
Total jet flux error0.006JyTotal jet luminosity error4 × 1022W/Hz/sr
Total jet angular length18.30arcsecTotal jet length54.04kpc
Total jet angular position4.40arcsecTotal jet position13.0kpc
Total counterjet statusPossible   
Total counterjet flux0.0037JyTotal counterjet luminosity2.3 × 1022W/Hz/sr
Total counterjet flux error0.0009JyTotal counterjet luminosity error6 × 1021W/Hz/sr
Total counterjet angular length6.80arcsecTotal counterjet length20.1kpc
Total counterjet angular position4.50arcsecTotal counterjet position13.3kpc
Total jet prominence0.00048   
Total jet prominence error0.0001   
Total counterjet prominence0.000077   
Total counterjet prominence error0.00002   
Fractional jet length0.7421   
Fractional jet position0.178   
Fractional jet termination0.921   
N hotspot statusYes   
N hotspot number1   
N hotspot flux density0.16JyN hotspot luminosity9.9 × 1023W/Hz/sr
N hotspot flux error0.01JyN hotspot luminosity error6 × 1022W/Hz/sr
N hotspot major axis0.21arcsecN hotspot major axis0.62kpc
N hotspot minor axis0.16arcsecN hotspot minor axis0.47kpc
N hotspot average size0.18arcsecN hotspot average size0.55kpc
N lobe hotspot prominence0.0033   
S hotspot statusYes   
S hotspot number1   
S hotspot flux density0.089JyS hotspot luminosity5.5 × 1023W/Hz/sr
S hotspot flux error0.002JyS hotspot luminosity error1 × 1022W/Hz/sr
S hotspot major axis0.22arcsecS hotspot major axis0.65kpc
S hotspot minor axis0.18arcsecS hotspot minor axis0.53kpc
S hotspot average size0.20arcsecS hotspot average size0.59kpc
S lobe hotspot prominence0.0019   
Average hotspot size0.19arcsecAverage hotspot size0.57kpc
N lobe primary fractional hotspot size0.0075   
S lobe primary fractional hotspot size0.0076   
N lobe hotspot recession coeff. (eta) 0.9670   
S lobe hotspot recession coeff. (eta)0.9926   
Primary hotspot size asymmetry0.92   
Primary hotspot prominence asymmetry1.8   

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