IN2P3/IRFU Machine Learning workshop 2026

A machine learning approach to stellar stream detection in photometric surveys

18 nov. 2026, 10:40

5m

Amphitheatre (LPSC)

Lightning talks Event/Object Reconstruction and Identification Event/Object Reconstruction and Identification

Orateur

Matthieu Pelissier (LPSC/UGA)

Description

Stellar streams are faint remnants of disrupted dwarf galaxies or globular clusters, orbiting within our Galaxy's halo. These low-surface-brightness structures can be detected in photometric surveys such as DES and LSST, but detection has so far relied on visual inspection. We aim to automate this process using a machine learning approach, trained on simulated streams injected with the StreamObs package.