# name
Spiral arm lanes as seen from young and old stellar tracers

# metadata.dc.description[].value
Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2021, Tutora: Francesca Figueras Siñol

# metadata.dc.description.abstract[].value
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

# metadata.dc.title[].value
Spiral arm lanes as seen from young and old stellar tracers