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Table 1

Most relevant parameters for the two models investigated.

External medium Inner jet Outer jet Structured jet

CZase p 0 η ρ,in c, in η ρ, out c, out L k, in / L k, total L k, out / L k, total Two-component jet

A 5 × 10-2 4.5 × 10-4 1.22 1 0.0 No
B 1 × 10-3 5 × 10-1 4.34 5 × 10-6 1.16 0.95 0.05 Yes
C 5 × 10-2 5 × 10-3 1.22 5 × 10-1 16.34 0.70 0.30 Yes
D 1 × 10-3 5 × 10-6 1.22 1 × 10-1 6 0.25 0.75 Yes
E 5 × 10-2 5 × 10-3 1.22 5 × 10 19.0 5 × 10-3 0.995 Yes
F 5 × 10-2 1 × 10-3 0 5 × 10-2 6.0 0 1 Yes

Notes. In addition to these values, the external medium has a normalized number density ρ0 = 1 and a normalized pressure p0 ≃ 5 × 10-2 or p0 ≃ 1 × 10-3 (these two types of pressure are chosen according to the energy ratio between inner and outer jet components). The inner jet always presents an initial Lorentz factor of γ = 10, higher than that of the outer jet initialized at γ = 3. The outer jet is assumed to be in pressure equilibrium with the external medium ηp, out = 1, contrary to the inner jet which presents a larger pressure ηp, in = 1.5.

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