Context: large-scale structure
Context: large-scale structure
“Ab 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 Galárraga-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