Ara mostrant els elements 1-10 de 29
Gómez Valent, Adrià (Data de defensa: 2017-09-12)
The cosmological constant appearing in Einstein’s equations is a key element of the ΛCDM standard cosmological model. This term performs, effectively, as pure vacuum energy, and is considered the easiest ...
Torres i Albà, Núria (Data de defensa: 2019-10-14)
This thesis has as an objective the study of very energetic phenomena in the central regions of active galaxies. Intense star formation is triggered by mergers of galaxies, and the funneling of large ...
Brieden, Samuel (Data de defensa: 2022-09-14)
[eng] Despite the successes of the cosmological ΛCDM model and having entered the "Precision Era of Cosmology" there are still open questions. The principal model ingredients, ΛCDM, contribute to ~95% ...
Martínez Montero, Marina (Data de defensa: 2016-10-14)
This thesis has focused entirely on classical and thermodynamical aspects of black hole physics. We have developed four different projects involving different kinds of black holes. 1 BLACK BRANES IN ...
Bellomo, Nicola (Data de defensa: 2020-01-24)
Cosmology is the study of the origin and evolution of our Universe as a whole. Even if the theoretical framework of Cosmology was developed a century ago, with the formulation of General Relativity by ...
de Cruz Pérez, Javier (Data de defensa: 2021-04-16)
En aquesta tesi s’estudien diferents models cosmològics, tots ells caracteritzats per considerar, de manera efectiva, una lleu evolució temporal de l’Energia Fosca, en contrast amb l’actual model ...
Rives Molina, Vicente José (Data de defensa: 2016-11-17)
This thesis is divided in different sections. After a short introduction about the thesis contents, the theory chapter presents the Standard Model of Particle Physics (SM), with an emphasis on those ...
Añez López, José Ignacio (Data de defensa: 2021-05-05)
In this thesis, we are aimed to better understand the massive star formation process paying special attention to the role of the magnetic field. To do this, we will carry out a multi-scale analysis with ...
Triantafyllou, Nikolaos (Data de defensa: 2021-11-12)
The standard cosmological model, ΛCDM, with the addition of an early inflationary phase, provides an accurate description of a nearly flat and homogeneous Universe, at large scales, which expands ...
Gontcho, Satya Gontcho A (Data de defensa: 2017-09-22)
The work we present in this manuscript revolves around the use of quasar spectra to probe the Universe. Absorption features in the electromagnetic spectrum of bright distant quasars by ionized hydrogen ...