RT info:eu-repo/semantics/masterThesis T1 Búsqueda de compañeros a gran separación de estrellas jóvenes cercanas con GAIA A1 Perez Perez, Barbara A2 Máster Universitario en Astrofísica AB The aim of this work is to explore the population of wide companions of nearby young stars using data from GAIA satellite. To achieve this goal, we have performed an astrometric and photometric search for companions with common distance and proper motion using GAIA DR3 (Data Release 3), in combination with other photometric catalogues such as 2MASS. The search has been performed on the following YMGs: TW-Hydrae (TWA; 10 Myr, 60 pc), 32 Orionis (32ORI; 22 Myr, 96 pc), βPictoris (βPIC; 24 Myr, 30 pc), Columba (COL; 42 Myr, 50 pc), Tucana-Horologium (THA; 45 Myr, 46 pc), Carina (CAR; 45 Myr, 60 pc), Volans-Carina (VCA; 90 Myr, 86 pc), AB Doradus (ABDMG; 150 Myr, 30 pc), Carina-Near (CARN; 200 Myr, 30 pc) y Oceanus (OCE; 500 Myr, 2-50 pc). YR 2024 FD 2024 LK http://riull.ull.es/xmlui/handle/915/39312 UL http://riull.ull.es/xmlui/handle/915/39312 LA es DS Repositorio institucional de la Universidad de La Laguna RD 23-dic-2024