Free Access

Table 7.

Tribble and CIoff fitting results and correction for adiabatic expansion.

αinj = 0.75 Beq = 5.9 μG
Tribble model
CIoff model
Region Age νbreak t tcorr νbreak t tcorr
[MHz] [Myr] [MHz] [Myr] [MHz] [Myr] [MHz] [Myr]

Northern outer lobe Tot 159 170 ± 6 413 106 ± 4 1.04 13.6 475 ± 200 0.8 2369 ± 800 4.71
Off 347 115 ± 7 902 71 ± 4 1.95 466 81 ± 1 28 405 ± 4
On 55 ± 15 35 ± 8 394 ± 201 1964 ± 804
Southern outer lobe Tot 166 163 ± 7 481 98 ± 4 1.09 10.2 548 ± 200 0.6 2770 ± 800 5.68
Off 259 133 ± 6 751 78 ± 4 2.52 473 80 ± 1 28 405 ± 4
On 30 ± 15 20 ± 8 468 ± 201 2365 ± 804
Intermediate lobe Tot 308 122 ± 7 431 103 ± 6 2.60

Notes. The break frequency (νbreak) and the synchrotron age (t) derived from the fitting model, the adiabatic-loss corrected break frequency () and synchrotron age (tcorr) and finally the reduced chi-squared of the fit (). Those parameters are derived for both the total age (Tot), the dying phase (Off) and the active phase (On) of the lobes using two different models (Tribble and CIoff), setting αinj = 0.75 and Beq = 5.9 μG.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.