Formation and evolution of large-scale structures from the perspective of halo models

Authors

DOI:

https://doi.org/10.47456/Cad.Astro.v6n2.48290

Keywords:

power matter spectrum, large scale structure, halo models, cosmological parameter inference

Abstract

The current era of large-scale structure research, driven by projects such as DESI, Euclid, and LSST, demands efficient methods for modeling and interpreting vast datasets. The matter power spectrum, P(k, z), is a central statistical estimator in these efforts, but its modeling on nonlinear scales remains an ongoing challenge in the literature. In this context, halo models provide a powerful approach by associating the distribution of matter with halos of different masses. Widely used in tools such as HALOFIT and HM-CODE, these models play a fundamental role in data analysis and cosmological parameter inference. This article aims to provide an introductory and didactic resource that reviews the essential components of halo models, highlighting their advantages, such as flexibility beyond the standard ΛCDM model, and their impact on galaxy property predictions, observational studies, and theoretical modeling. The review is presented in a clear and accessible manner, aiming to introduce this approach, which will become increasingly indispensable in modern cosmology.

Author Biographies

  • Emanuelly Silva, Universidade Federal do Rio Grande do Sul

    Emanuelly Silva é doutoranda em Física pela UFRGS. Possui mestrado em Física pela mesma instituição e bacharelado em Física pela UFS. Atualmente pesquisa combinando abordagens teóricas, observacionais e computacionais, com ênfase na modelagem do espectro de potência da matéria em escalas não lineares. Além disso, estuda tensões cosmológicas, como H0 e S8, e modelos alternativos de energia escura, trabalhando com dados observacionais recentes, como os do DESI.

  • Rafael C. Nunes, Universidade Federal do Rio Grande do Sul

    Rafael C. Nunes é Professor Adjunto no Instituto de Física, Departamento de Astronomia da UFRGS. Atualmente, desenvolve pesquisas em diferentes áreas da Cosmologia e da Gravitação, com ênfase em modelagem teórico-computacional e observacional.

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Published

29-10-2025

Issue

Vol. 6 No. 2 (2025): Efeitos Quânticos em Astrofísica e Cosmologia

Section

Artigos

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Copyright (c) 2025 Emanuelly Silva, Rafael C. Nunes

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This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
E. Silva and R. C. Nunes, “Formation and evolution of large-scale structures from the perspective of halo models”, Cad. Astro., vol. 6, no. 2, p. 161–170, Oct. 2025, doi: 10.47456/Cad.Astro.v6n2.48290.