21–22 Sept 2023
Unicentro Cali. Salón Caracolí
America/Bogota timezone

Spherical collapse model for a non-Abelian Gauge-field cosmology

22 Sept 2023, 14:00
30m
Unicentro Cali. Salón Caracolí

Unicentro Cali. Salón Caracolí

Unicentro Cali. Salón Caracolí

Speaker

William Esteban Salazar (Centre for Bioinformatics and Photonics (CIBioFi), Universidad del Valle, Edificio E20 No. 1069, 760032 Cali, Colombia)

Description

In this talk, we investigate the spherical collapse model within the framework of dynamical dark energy cosmologies. We present a versatile code that allows for the implementation of various dark energy models, providing a powerful tool for studying their effects on structure formation. To demonstrate the capabilities of our code, we focus on a cosmology where a non-abelian gauge SU(2) vector field is the sole source of dark energy. This choice allows us to explore the unique characteristics of this model and investigate its implications for the formation of cosmic structures. By incorporating the dynamics of the non-abelian gauge field into the spherical collapse model, we analyze the growth of density perturbations and the formation of collapsed objects in this cosmological scenario. We observe distinct deviations from the LCDM result, highlighting the importance of considering alternative sources of dark energy in cosmological investigations of structure formation.

Authors

Prof. Cesar Alonso Valenzuela Toledo (Departamento de Física, Universidad del Valle, 760032 Cali, Colombia) Prof. Javier Madroñero (Centre for Bioinformatics and Photonics (CIBioFi), Universidad del Valle, Edificio E20 No. 1069, 760032 Cali, Colombia) William Esteban Salazar (Centre for Bioinformatics and Photonics (CIBioFi), Universidad del Valle, Edificio E20 No. 1069, 760032 Cali, Colombia)

Presentation materials

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