Iron distribution in a Supernova Remnant

3D Model

The scene shows the distribution of iron in the remant of a neutrino-driven supernova explosion. The colored isosurface marks the distribution of iron after 359 years of evolution (nearly the age of the SNR Cassiopeia A) derived from an hydrodynamic model (run W15-2-cw-IIb-HD+dec). The opaque irregular isosurface corresponds to a value of Fe density which is at 5% of the peak density; the colors give the radial ejecta velocity in units of 1000 km/s on the isosurface (the color coding is defined at the bottom of the scene). The semi-transparent quasi-spherical surfaces indicate the forward (green) and reverse (yellow) shocks. The Earth vantage point lies on the negative y-axis.

MHD simulation performed with the PLUTO code.

Reference: Orlando et al. 2021, A&A 645, A66