Cosmology from the Measurement of the Baryon Acoustic Oscillations Scale in Large Galaxy Surveys
Cosmology has undergone a revolution in the last few decades, driven by advancements in observational techniques, theoretical models, and computational capabilities. Among its most significant achievements is the establishment of CDM as the standard cosmological model, which has transformed our unde...
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| Tipo de recurso: | tesis doctoral |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/103302 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/103302 |
| Access Level: | acceso abierto |
| Palabra clave: | 524.8(043.2) Cosmología Astrofísica 21 Astronomía y Astrofísica |
| Sumario: | Cosmology has undergone a revolution in the last few decades, driven by advancements in observational techniques, theoretical models, and computational capabilities. Among its most significant achievements is the establishment of CDM as the standard cosmological model, which has transformed our understanding of the composition and evolution of the Universe. CDM describes the Universe as composed mainly of dark energy in the form of a cosmological constant, ; cold dark matter (CDM); and ordinary baryonic matter. Each of these constituents account for a 70%, 25% and 5% of the total energy density of the Universe, respectively. Dark energy is the physical entity that drives the accelerated expansion of the Universe. It is, by far, the dominant component. Dark matter, on the other hand, does not interact with electromagnetic radiation, which makes it invisible to telescopes. Its presence is inferred through its gravitational eects on visible matter and the large-scale structure (LSS) of the Universe. Finally, ordinary baryonic matter, which is composed mainly of protons, neutrons, and electrons, makes up the familiar matter we can see and interact with. CDM is based on the cosmological principle, which posits that the Universe is homogeneous and isotropic on large scales, and on general relativity as the theory that describes the gravitational interaction. It successfully explains a wide range of cosmological observations, including the accelerated expansion of the Universe, the cosmic microwave background (CMB) radiation, the abundances of light elements, and the large-scale distribution of galaxies... |
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