Theoretical Modeling of Large-Scale Structure of the Universe

Session

field theory of cosmic structures

3 Jun 2024, 14:30

Lecture Theatre

36. Optimal Transport Reconstruction of Large Scale Structures (Nikakhtar)

03/06/2024, 14:30

One fundamental question in the physics of large-scale structures is how we can trace back the evolution of cosmic structures and reconstruct the initial density field. The universe we observe today is dotted with galaxy clusters separated by vast voids, in sharp contrast to its initial state, which was nearly uniform with only minor density fluctuations. The evolution from this early...

9. What makes a filament? (Feldbrugge)

03/06/2024, 15:30

The cosmic web is the largest geometric structure in our universe, consisting of an intricate network of empty voids bounded by thin walls, elongated filaments, and dense clusters. Given the array of upcoming cosmological redshift surveys, new analytic tools are needed to study the formation of the various structures, quantify the geometry and topology, and isolate the elements of the cosmic...

11. The energy principle for the shape of protohaloes (Musso)

03/06/2024, 16:00

Analytical models of structure formation routinely assume that dark matter halos form from peaks of the initial density field, smoothed with some spherically symmetric filter. This works reasonably well for identifying the center of mass of protohaloes, but gives no information about their shapes. To provide a more realistic description of protohalo boundaries, one must go beyond the spherical...