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Home All issues Volume 664 (August 2022) A&A, 664 (2022) A118 Full HTML
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Table A.1

Parameters of conical pulsed medium-density jet simulations with the resulting opening angles and full widths

Fixed parameters
mean jet velocity vo = 120km/s
jet density variation
jet temperature Tj = 100K
ambient core temperature Ta = 100 K
core density profile
radiative cooling function Λ (100 K ≤ T < 104 K) from Dalgarno & McCray (1972) Λ (T ≥ 104 k) from Schure et al. (2009)
simulation domain (R, z) = (7.0 × 1016 cm, 1.9 × 1017 cm) = (4679 au, 12700au)
number of cells nR × nz = 56 × 152 at AMR level 1
maximal AMR level 5
maximum resolution ΔR = Δz = 7.8 × 1013 cm = 5.2 au at AMR level 5
snapshot age 700 yr
Parameter Reference Model Modified Modified α800b W800C W12700d
M_REF parameter a Model name (°) (1016 cm) (1016 cm)
core base density pα0 1.6 × 10–18gcm–3 1.6 × 10–20gcm–3 M_DENSA 112 3.5 12.4
jet semi opening angle θj 3° 7° M_THETA 81 2.0 8.4
jet base initial densitye pj0 1.8 × 10–19gcm–3 1.8 × 10–17gcm–3 M_DENSJf 88 2.3 7.6
semi-amplitude ΔV 60km/s 90km/s M_VAMP 77 1.9 8.8
jet variability period P 115 yr 300 yr M_PER 74 1.8 7.4
jet variability profile h(t) M_SAWT 74 1.8 7.0
jet radius Rj 7.5 × 1014cm 3.0 × 1014cm M_RAD 65 1.5 6.4

a In each modified model, only one parameter at a time is changed with respect to the reference model.

b Shell full opening angle at z = 800 au. We obtain α800 = 72° for the reference model.

c Full shell width at z = 800 au. We obtain W800 = 1.7 × 1016 cm for the reference model.

d Full shell width at z = 12700 au (top of the grid). We obtain W12700 = 8.0 × 1016cm for the reference model.

e Medium jet density case, yielding a one-sided mass-flux for the reference values of θj and Rj

f This model is equivalent to H_REF.

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