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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/180562
Spiral arm lanes as seen from young and old stellar tracers
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In this work we compare the spiral structure depicted by two stellar tracers with very different ages: an extremely young population of OB type stars and a population of Red Clump stars assumed to be relaxed in the Galactic potential. A Kernel density estimator applied to Gaia and StarHorse EDR3 data allow us to trace the over/under-density maps on the Galactic plane at± 3 kpc from the Sun location. Preliminary results confirm that Perseus and Sagittarius-Carina arms are well delineated in both samples and possible offsets between their locus are evaluated. More important, the surface density amplitude of the young population is estimated to be a factor 2-3 larger than that of the old population. These results provide new insights to discern on the mechanisms by which the Milky Way spiral arms evolve
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Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2021, Tutora: Francesca Figueras Siñol
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ALTAMIRANO BONILLA, Joseph david. Spiral arm lanes as seen from young and old stellar tracers. [consulta: 24 de gener de 2026]. [Disponible a: https://hdl.handle.net/2445/180562]