Inicio / Eventos / Seminario Astronomia / An astrometric view of open clusters and associations in the Milky Way

An astrometric view of open clusters and associations in the Milky Way

  • Steven Alfonso

    Estudiante de doctorado en Física, Universidad de los Andes

Lugar: Uniandes | Edificio IP-105
Fecha: 07 de Febrero del 2023
hora: 2:00 pm

The astrometric and photometric information from the Gaia DR3 catalogue has made it possible to analyze and find new open clusters and associations in the Galaxy. Stars in open clusters tend to be grouped and share kinematic and stellar properties due to their origin. However, in the case of associations, these groups share kinematic properties but are not grouped as in an open cluster, they have been found to extend up to 120°. These comoving groups open a new insight into the local galactic structure, allowing us to understand dynamic processes in the Milky Way. We are analyzing regions at low and high latitudes (|b|>30°) using machine learning to identify these clusters and determine stellar parameters of their stars, such as age and metallicity.

Lugar: Uniandes | Edificio IP-105
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