Document type
Bachelor thesisPublication date
Publication license
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/194212
Surface density profile and AVR for Milky Way-like galaxies in TNG50
Journal Title
Authors
Director/Tutor
Journal ISSN
Volume Title
Related resource
Abstract
We have studied the surface density profile, ΣR, and the AVR, σvz , of stars for 25 MW-like galaxies in the TNG50 simulation and compared the results with the Kordopatis et al. and Sanders et al. catalogues of Milky Way stars. ΣR of stellar disks on spiral galaxies obeys an exponential profile where younger stars are more abundant than older stars, specially so towards the end of the disk. We argue it’s because older stars were born towards the center during the formation of the galaxy and more, younger stars were born at the newly formed disk and outer regions as they were getting hotter and denser. σvz shows a decreasing trend with galactocentric radius, though for both catalogues a plateau can be seen for R >∼ 8 kpc, attributed to a more scattered sample of stars near the edge of the stellar disk. Older stars tend to show higher velocity dispersion than younger stars due to the conditions, such as gas turbulence, of when they were formed.
Description
Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2022-2023, Tutor: Chervin Fabien Pierre Laporte
Subject (English)
Citation
Collections
Citation
GARCÍA BARDAJÍ, Eduard. Surface density profile and AVR for Milky Way-like galaxies in TNG50. [consulted: 8 of June of 2026]. Available at: https://hdl.handle.net/2445/194212