- Lectures
- Institute of Astronomy and Astrophysics
- Location
R1203 of the Astronomy-Mathematics Building, National Taiwan University
- Speaker Name
Dmitri Pogosyan, University of Alberta
- State
Definitive
- Url
Abstract:
Grand structures in the matter distribution in our Universe as traced by galaxies formed from density fluctuations that were small and linear in a distant past. Viewed as initial conditions for further hierarchical gravitational instability, the field of initial density contains information about many properties of the predominantly filamentary Large Scale Structure observed now. Sometimes, average properties, such as connectivity of the filamentary Cosmic Web of galaxies or rate of mergers during assembly of halos, can be deduced from first principles by studying this random field of initial inhomogeneities. This is the topic of my talk.