Context: large-scale structure

Context: large-scale structure

β€œAb initio” predictions

\(t\)

🍾 New paper!

Estimating major merger rates and spin parameters ab initio via the clustering of critical events

🍾 New paper!

Estimating major merger rates and spin parameters ab initio via the clustering of critical events

Also: first paper written with a student (Eric Pichon-Pharabod)

Spherical collapse - in a 🌰

Counting peaks = counting halos (of a given mass)

Spherical collapse - in a 🌰

Counting inflection points = counting mergers

Critical event theory - in another 🌰

😨

☺️

Result 1: halos undergo ~ 2 major mergers

Result 2: mergers spin ~ halo spin

🍾 New paper!

Evolution of cosmic filaments in the MTNG simulation

Daniela GalΓ‘rraga-Espinosa, CC, et al

Cosmic 🍝: how do filaments evolve?

Cosmic 🍝: how do filaments evolve?

Cosmic 🍝: how do filaments evolve?

Length at \(z=0\)

Growth since \(z=1\)

Main result:

short filament contract
long filaments expand