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- Seminars and Workshops
- Institute of Astronomy and Astrophysics
- Location
online
- Speaker Name
Dhruba Dutta Chowdhury [Yale]
- State
Definitive
- Url
Constraining Dark Matter through Gravitational Heating and Cooling Processes
2022-01-19 10:00 - 11:00
Abstract
Critical points are special objects of a density field where the gradient of the field vanishes. They encode the topological information on the underlying density field and typically are the formation sites of large-scale structures of the cosmic web. Hence, the clustering of critical points provides information on the statistical properties of a given density field and the spatial organization of physical structures anchored to these points. In this talk, I will discuss the cosmic evolution of the clustering properties of peak-, filament-, wall-, void-type critical points focusing on both small separations and baryonic acoustic oscillation scales. A qualitative comparison with the corresponding theory for Gaussian random fields will be also discussed. Finally, I will summarize the cosmological implication of our findings and relate them to the cosmic standard rulers. Link to the talk: http://meet.google.com/ezw-onwu-zns
