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Table 1

Numerical models.

Name B0   (G) Amplitude Length scale Time scale Location Perturbation description Final time

Rnd20 20 0.01 25   km 0.05   s Accretion stream Random density perturbations 7   ks
Rnd50 50 0.01 25   km 0.05   s Accretion stream Random density perturbations 7   ks
Rnd100 100 0.01 25   km 0.05   s Accretion stream Random density perturbations 7   ks
Rnd250 250 0.01 25   km 0.05   s Accretion stream Random density perturbations 7   ks
Rnd500 500 0.01 25   km 0.05   s Accretion stream Random density perturbations 7   ks

IsSm20 20 10 300   km 30   s Accretion stream Isolated small clumps 4   ks
IsSm500 500 10 300   km 30   s Accretion stream Isolated small clumps 4   ks
IsLg20 20 10 1000   km 2   min Accretion stream Isolated large clumps 4   ks
IsLg500 500 10 1000   km 2   min Accretion stream Isolated large clumps 4   ks

ClSm20 20 10 300   km 0.5   s Accretion stream Stream of small clumps 4   ks
ClSm500 500 10 300   km 0.5   s Accretion stream Stream of small clumps 4   ks
ClLg20 20 10 1000   km 1.5   s Accretion stream Stream of large clumps 4   ks
ClLg500 500 10 1000   km 1.5   s Accretion stream Stream of large clumps 4   ks

Obl500 500 3500   km 15   min Accretion stream Oblique impacting surface 7   ks

ChrFlx20 20 10  F 3500   km 15   min Chromosphere Energy flux 5   ks
ChrFlx100 100 10  F 3500   km 15   min Chromosphere Energy flux 5   ks
ChrFlx500 500 10  F 3500   km 15   min Chromosphere Energy flux 5   ks

NoPert 20 No perturbation 10   ks

Notes.Their code names summarize the type of perturbation and the strength of the magnetic field.

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