PIRSA:13090062

Peaks, excursion sets and the distribution of dark matter haloes

APA

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

MLA

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

BibTex

          @misc{ scivideos_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 for Theoretical Physics},
            year = {2013},
            month = {sep},
            note = {PIRSA:13090062 see, \url{https://scivideos.org/index.php/pirsa/13090062}}
          }
          

Vincent Desjacques Université de Genève

Talk numberPIRSA:13090062
Source RepositoryPIRSA
Talk Type Scientific Series
Subject

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.