Dinámica cosmológica de la energía oscura tipo vectorial y su interacción con la materia oscura
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Date
2024
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Universidad Nacional de Trujillo
Abstract
En este trabajo se estudió un modelo cosmológico basado en una teoría de gravedad modificada para explicar la expansión acelerada del Universo, específicamente la energía oscura de tipo vectorial. El estudio de este tipo de teorías se complementó incluyendo una interacción fenomenológica entre sus componentes oscuras (materia oscura y energía oscura), seguido de un análisis dinámico para estudiar la evolución térmica del Universo y de sus parámetros cosmológicos. Se demostró que la presencia de interacción influye significativamente en la evolución de la energía oscura de tipo vectorial, lo que conduce a características distintivas en su ecuación de estado y densidad de energía. Se compararon los hallazgos con datos observacionales, destacando la importancia de considerar interacciones en futuros estudios cosmológicos
Abstract In this work, a cosmological model based on a modified gravity theory was studied to explain the accelerated expansion of the Universe, specifically vector-like dark energy. The study of such theories was complemented by including a phenomenological interaction between its dark components (dark matter and dark energy), followed by a dynamic analysis to study the thermal evolution of the Universe and its cosmological parameters. It was demonstrated that the presence of interaction significantly influences the evolution of vector-like dark energy, leading to distinctive features in its equation of state and energy density. The findings were compared with observational data, highlighting the importance of considering interactions in future cosmological studies
Abstract In this work, a cosmological model based on a modified gravity theory was studied to explain the accelerated expansion of the Universe, specifically vector-like dark energy. The study of such theories was complemented by including a phenomenological interaction between its dark components (dark matter and dark energy), followed by a dynamic analysis to study the thermal evolution of the Universe and its cosmological parameters. It was demonstrated that the presence of interaction significantly influences the evolution of vector-like dark energy, leading to distinctive features in its equation of state and energy density. The findings were compared with observational data, highlighting the importance of considering interactions in future cosmological studies
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Keywords
Energía oscura, gravedad modificada, interacciones cosmológicas,
sistemas dinámicos