# Density and Magnetic Field Evolution

## Density and Magnetic Field Evolution

Here we look at the time evolution of the rest-mass density, magnetic field, and velocity flow. The rest-mass density is normalized to the maximum density at $t/M = 0$. The SMS collapses, forming a SMBH immersed in a disk of gas. After the formation of the SMBH, a shockwave is produced and pushes matter outwards from the disk. Shortly after, we see the helical magnetic field lines become collimated and tightly wound above the BH poles. The field lines form a funnel which drives and confines the matter in a jet.

 Fig. 1-1: Density Fig. 1-2: Density
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