Free Access

Table 1.

Summary of the initial physical parameters characterizing the different models.

Model Tj (106 K) nj (104 cm−3) χb υb (km s−1) Rb ROT j (10−8 Myr−1)
Light jet

LJ1 3 1 3 300–700c 1 no 1.3−5.4
LJ2 3 1 1.5 300–700c 1 no 1.3−2.7
LJ3 3 1 3 500 1 no 1.3−3.9
LJ4 3 1 3 500 1/3 no 1.3−1.6
LJ5_refa b 3 1 3 500 1 yes 1.4−4.0
LJ6 3 1 1.5 500 1 no 1.3−2.0
LJ7 3 1 1.5 500 1/3 no 1.3−1.4
LJ8 3 1 10 500 1 no 1.3−12.8
LJ9 3 2 1.5 500 1 no 2.6−3.9
LJ10 2 3 1.5 500 1 no 3.9−5.8

Heavy jet

HJ1 1 1 3 300–700c 1 no 1.3−5.3
HJ2b 1 1 1.5 300–700c 1 yes 1.3−2.7
HJ3_refab 1 1 1.5 300–700c 1/3 yes 1.3−1.5
HJ4 1 1 3 500 1 no 1.3−3.8
HJ5 1 1 3 500 1/3 no 1.3−1.6
HJ6b 1 1 3 500 1 yes 1.3−3.9
HJ7 1 1 1.5 500 1 no 1.3−1.9
HJ8 1 1 1.5 500 1/3 no 1.3−1.4
HJ9 1.5 1 1.5 500 1 no 1.3−1.9
HJ10 2 1 1.5 500 1 no 1.3−1.9
HJ11 1.5 1 3 500 1 no 1.3−3.8
HJ12 2 1 3 500 1 no 1.3−3.8

Notes. Columns are: jet temperature at the lower boundary, Tj; jet density at the lower boundary (continuous component), nj; initial blob-to-jet particle number density ratio (pulsed component), χb = nb/nj; blob velocity at the lower boundary (pulsed component), υb; initial blob-to-jet radius ratio (pulsed component), Rb = rb/rj; a parameter, ROT, that indicates if there is rotation in the jet (“yes”) or not (“no”); and the mass loss rate calculated at the lower boundary, j. The initial temperature, density, and pressure of the ambient are Ta = 10 K, na = 5000 cm−3, and pa ≈ 1.4 × 10−11 dyne cm−2, respectively, in the LJ models; and Ta = 100 K, na = 100 cm−3, and pa ≈ 2.8 × 10−12 dyne cm−2 in the HJ models. The rest of the parameters are constant and equal for all the models: ambient magnetic field, Bz = 4 mG; jet velocity at the lower boundary, υj = 500 km s−1. The top panel shows the models for the light jet, a jet less dense than the ambient medium. The bottom panel displays the models for the heavy jet, a jet denser than the ambient medium.

(a)

Reference case.

(b)

Jet characterized by an angular velocity corresponding to a maximum linear rotational velocity of υφ,max = 150 km s−1 at the lower boundary.

(c)

Random velocity with values between 300 and 700 km s−1.

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.