Cover Image: High-Resolution Slice of Gas Density in New Horizon (Dubois et al. 2020), Highlighting the Location of One Massive System
Where are massive galaxies located in the cosmic web?
A fly-through of the 20 Mpc NewHorizon (Dubois et al. 2020) simulation volume at (z = 0.17). The cosmic web is visualized through the gas density field, where diffuse gas appears green and the densest filaments and galaxy cores transition through pink to lavender. The thirteen Milky Way–mass host galaxies, identified as galaxies with $M_* > 10^{10.5} \mathbf{M_\odot}$, embedded in this volume, are highlighted by yellow spheres that expand to a radius of $3R_{\rm vir}$ and become fully opaque as the camera reaches each system, illustrating the region within which satellite galaxies are identified. Video is from Madhani et al. in prep.
Filament Evolution Around Massive Galaxies
Here I show the gas density surrounding 12 massive halos in NewHorizon as it evolves from Z = 1 to Z = 0.17. I report the physical properties of each system of galaxies at Z = 0.17 beneath each video. Watch as filaments merge, twist, and zip together!
