PIRSA:13090062 Scientific Series Cosmology

DOI10.48660/13090062

Series: Cosmology and Gravitation

Desjacques, V. (2013). Peaks, excursion sets and the distribution of dark matter haloes. Perimeter Institute. https://pirsa.org/13090062

Desjacques, Vincent. Peaks, excursion sets and the distribution of dark matter haloes. Perimeter Institute, Sep. 03, 2013, https://pirsa.org/13090062 

@misc{ pirsa_PIRSA:13090062,
  doi = {10.48660/13090062},
  url = {https://pirsa.org/13090062},
  author = {Desjacques, Vincent},
  keywords = {Cosmology},
  language = {en},
  title = {Peaks, excursion sets and the distribution of dark matter haloes},
  publisher = {Perimeter Institute},
  year = {2013},
  month = {sep},
  note = {PIRSA:13090062 see, \url{https://pirsa.org}}
}

Abstract

I will review recent developments in our theoretical understanding of the abundance and clustering of dark matter haloes. In the first part of this talk, I will discuss a toy model based on the statistics of peaks  of Gaussian random field (Bardeen et al 1986) and show how the clustering properties of such a point set can be easily derived from a generalised local bias expansion. In the second part, I will explain how  this peak formalism relates to the excursion set approach and present parameter-free predictions for the  mass function and bias of dark matter halos.

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