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Table 7.

Best-fit model of the radiative losses of the central region of the radio galaxies and their physical parameters.

Radio Cluster Comp. Rad. loss αinj νbr Beq Pint trad
galaxy name model (GHz) (μG) (dyne cm−2) (Myr)
J 1254-2900 A 3528 N Tot. PL 0.11 ≥8.4 10.6 6.4 × 10−12 14

J 1254-2901a A 3528 N Centr. PL 0.7 ≥8.4 7.2 3.1 × 10−12 22

J 1254-2904 A 3528 N Centr. PL 1.1 ≥8.4 4.7 1.2 × 10−12 34
Diff. PL 0.06 ≥8.4 3.5 7.2 × 10−13 41
Tot. PL 1.5 ≥8.4 4.1 9.6 × 10−13 38

J 1254-2913 A 3528 S Centr. PL 0.3 ≥8.4 8.1 3.8 × 10−12 19
Diff. PL 3.1 ≥8.4 10.0 5.7 × 10−12 15
Tot. PL 0.6 ≥8.4 10.2 6.1 × 10−12 15

J 1254-2916 A 3528 S Centr. PL 1.1 ≥8.4 5.2 1.6 × 10−12 31
Diff. PL 1.7 ≥8.4 3.9 8.7 × 10−13 40
Tot PL 0.03 ≥8.4 4.3 1.1 × 10−12 36

J 1257-3021 A 3532 Centr. PL 7.4 ≥8.4 6.8 2.7 × 10−12 24
Diff. PL 1.6 ≥8.4 4.9 1.4 × 10−12 33
Tot. PL 13 ≥8.4 6.7 2.6 × 10−12 24

J 1324-3138 A 3556 Centr. JP 0.5a 6.7 3.4 6.7 × 10−13 62
Diff. JP 2.1 2.9 4.9 × 10−13 39
J 1324-3140 A 3556 Centr. PL 0.7 ≥8.4 5.2 1.5 × 10−12 32

Notes.

(a)

Fixed α value. For all the PL models we obtain an upper limit estimation of the radiogalaxy lifetime.

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