23–24 Oct 2023
UB Physics Faculty, Sala de Graus Eduard Fontserè
Europe/Madrid timezone

Neural Network classifier for the generation of clean Magellanic Cloud samples

23 Oct 2023, 11:30
30m
Sala de Graus Eduard Fontserè (UB Physics Faculty, Sala de Graus Eduard Fontserè)

Sala de Graus Eduard Fontserè

UB Physics Faculty, Sala de Graus Eduard Fontserè

Carrer de Martí i Franquès, 1, 11, 08028 Barcelona

Speaker

Óscar Jiménez Arranz

Description

The proximity of the Magellanic Clouds (MCs) to the Milky Way (MW) makes them a perfect laboratory for testing methodologies and models designed for the study of external galaxies using Gaia (ESA) data. To do so, we need to separate in the Gaia data the MCs stars from the foreground MW stars, in order to obtain “clean” MC samples. This is achieved through the design and training of a neural network classifier; the algorithm uses as much of the Gaia DR3 types of data as possible and its results have been validated through comparison with independently classified data (Jiménez-Arranz+23a,b).

Primary author

Co-authors

Eduard Masana (Institut de Ciències del Cosmos (ICCUB-IEEC)) Dr Laurent Chemin (Instituto de Astrofísica) Merce Romero-Gomez Dr Paul McMillan (Lund Observatory) Dr Teresa Antoja (Institut de Ciències del Cosmos) Xavier Luri (ICCUB) santi Roca-Fàbrega (Universidad Complutense de Madrid)

Presentation materials