Figure 21

Figure 21: MPEG movie illustrating the propagation of a relativistic jet from a collapsar, whose progenitor is a rotating He star with a radius of 10 3× 10 cm. All three panels show the rest mass density distribution. The left panel displays the computational domain up to the head of the jet (note the changing axis and color scales). The upper right panel shows the central region (scale fixed) where the jet forms due to a prescribed time-independent and spatially localized energy deposition rate (1050 erg s-1). One can recognize the central spherical region (black circle) of radius 2 × 107 cm which was excised from the computational domain. It contains a (rotating) black hole of initially three solar masses accreting matter through the inner grid boundary. The lower right panel provides a global view (scale fixed) of the computational domain up to the surface of the He star progenitor. (Movie courtesy of M.A. Aloy.)