Large-scale galaxy bias

V Desjacques, D Jeong, F Schmidt - Physics reports, 2018 - Elsevier
This review presents a comprehensive overview of galaxy bias, that is, the statistical relation
between the distribution of galaxies and matter. We focus on large scales where cosmic …

An excursion set model of hierarchical clustering: ellipsoidal collapse and the moving barrier

RK Sheth, G Tormen - Monthly Notices of the Royal …, 2002 - academic.oup.com
The excursion set approach allows one to estimate the abundance and spatial distribution of
virialized dark matter haloes efficiently and accurately. The predictions of this approach …

The universality of the virial halo mass function and models for non-universality of other halo definitions

G Despali, C Giocoli, RE Angulo… - Monthly Notices of …, 2016 - academic.oup.com
The abundance of galaxy clusters can constrain both the geometry and growth of structure in
our Universe. However, this probe could be significantly complicated by recent claims of non …

Generating merger trees for dark matter haloes: a comparison of methods

F Jiang, FC van den Bosch - Monthly Notices of the Royal …, 2014 - academic.oup.com
Halo merger trees describe the hierarchical assembly of dark matter haloes, and are the
backbone for modelling galaxy formation and evolution. Merger trees constructed using …

Dark matter, density perturbations, and structure formation

A Del Popolo - Astronomy Reports, 2007 - Springer
This paper provides a review of the types of dark matter that are thought to be fundamental
components of the Universe, and their role in the origin and evolution of structures, together …

On the effect of angular momentum on the prompt cusp formation via the gravitational collapse

A Del Popolo, S Fakhry - Physics of the Dark Universe, 2023 - Elsevier
In this work, we extend the model proposed by White (2022) concerning the post-collapse
evolution of density peaks while considering the role of angular momentum. On a time scale …

Primordial Black Hole–Neutron Star Merger Rate in Modified Gravity

S Fakhry, M Shiravand, M Farhang - The Astrophysical Journal, 2024 - iopscience.iop.org
In this work, we investigate the merger rate of primordial black hole–neutron star (PBH-NS)
binaries in two widely studied modified gravity (MG) models: Hu–Sawicki f (R) gravity and …

Environmental dependence in the ellipsoidal collapse model

V Desjacques - Monthly Notices of the Royal Astronomical …, 2008 - academic.oup.com
N-body simulations have demonstrated a correlation between the properties of haloes and
their environment. In this paper, we assess whether the ellipsoidal collapse model, whose …

Effect of a high-precision semianalytical mass function on the merger rate of primordial black holes in dark matter halos

S Fakhry, A Del Popolo - Physical Review D, 2023 - APS
In this work, we study the effect of a high-precision semianalytical mass function on the
merger rate of primordial black holes (PBHs) in dark matter halos. For this purpose, we first …

Extended spherical collapse and the accelerating universe

A Del Popolo, F Pace, JAS Lima - International Journal of Modern …, 2013 - World Scientific
The influence of the shear stress and angular momentum on the nonlinear spherical
collapse model is discussed in the framework of the Einstein–de Sitter and ΛCDM models …