Morphological Types of DM Halos in Milky Way-like Galaxies in the TNG50 Simulation: Simple, Twisted, or Stretched

We present a comprehensive analysis of the shape dark matter (DM) halos in sample 25 Milky Way-like galaxies TNG50 simulation. Using an Enclosed Volume Iterative Method (EVIM), we infer oblate-to-triaxial for DM halo with median $T \simeq 0.24 $. group 3 different categories. Simple (32% population) establish principal axes whose ordering magnitude does not change radius and orientations are almost fixed throughout halo. Twisted population), experience levels gradual rotations their radial profiles. Finally, stretched (36% demonstrate stretching lengths where eigenvalues radius. Subsequently, experiences "rotation" $\sim$90 deg occurs. Visualizing 3D ellipsoid each halo, first time, report signs re-orienting twisted halos. examine impact baryonic physics on through comparison to only (DMO) simulations. This suggests triaxial (prolate) analyze substructure both hydro DMO simulations confirm that impacts subdominant. study distribution satellites our sample. In simple halos, angle satellites' angular momentum galaxy's grows However, show flat angles. Overlaying theoretical outcome observational results presented literature establishes fair agreement.