Rubin LSST-France, LPSC Grenoble, 24-26/11/2025

Estimating Rubin/LSST sensitivity to dark matter subhalos impact on stellar streams

Non programmé

20m

Amphithéâtre (Laboratoire de Physique Subatomique et de Cosmologie Amphithéâtre)

Science talks

Orateur

Matthieu Pelissier (LPSC/UGA)

Description

Dark matter subhalos with masses from 10⁶ to 10⁹ solar masses are mostly invisible, but could impact the structure of stellar streams observed by LSST. Presentation on how LSST systematics could impact density fluctuations measurements in stellar streams, used to set dark matter constrains.