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Table 4.
Duty cycle time-scales estimated using spectral age results obtained using the JP model on the Western lobe and different values of magnetic field (see Sect. 4.2).
| Jet phase | JP (Beq) | JP (BIC) |
|---|---|---|
| First episode ton, 1 [Myr] | ≳7 | ≳30 |
| Inactive time toff [Myr] | ≲4 | ≲20 |
| Second episode ton, 2 [Myr] | >6 | >30 |
| Fractional duty cycle | ≳60% | ≳60% |
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