Analytical and numerical model of radiative transfer in galaxies
Título (trad.)
Modelos analíticos y numéricos de transporte radiativo en galaxiasAutor (es)
Romero Calleja, MarioEntidad
UAM. Departamento de Física TeóricaFecha de edición
2022-09-29Materias
Galaxias; Supernovas; Radiación; FísicaNota
Tesis Doctoral inédita leída en la Universidad Autónoma de Madrid, Facultad de Ciencias, Departamento de Física Teórica. Fecha de Lectura: 29 -09-2022Esta tesis tiene embargado el acceso al texto completo hasta el 29-03-2024
Esta obra está bajo una licencia de Creative Commons Reconocimiento-NoComercial-SinObraDerivada 4.0 Internacional.
Resumen
Galaxy formation and evolution involve several physical processes where stars, gas and dust play important roles. While analytical and numerical models have successfully accounted for most of them over the years, radiative transfer, that considers the interaction between light and the interstellar medium, is still the elephant in the room. Despite its importance as a driver of galactic evolution and as one of the main observables, radiation is often treated under very restrictive assumptions because an on-the-fy radiative transfer prescription is computationally expensive. This thesis advocates the importance and feasibility of including radiation by developing several models and codes with modest computational requirements. To illustrate this, I include radiation felds into the well-studied problem of supernova remnant evolution to study its efects, highlighting the main diferences and improvements with respect to previous works in the literature. Then, I model the interstellar radiation feld of the Milky Way in a self-consistent way, based on a distribution of stars, gas and dust predicted by chemical evolution models. This opens the door to use the interstellar radiation feld both as a prediction to calibrate evolutionary galaxy models, as well as an efcient method to consider this ingredient on other physical processes, as done with supernova remnants
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