Investigation of environmental effects on galaxy evolution with Euclid and CFHT

Located in the local universe (z<0.2), the Pisces-Perseus filament is a remarkable large-scale structure, providing a unique perspective to study the influences of LSS on galaxy morphology and dynamics. Using CFHT-MegaCam data over 350 deg², my study delves into the morphological segregation and spatial distribution of galaxies within the filament. Measurements of the distribution and alignment of galaxies near the filaments have revealed distinct patterns of morphological segregation : evolved red elliptical galaxies are concentrated and aligned within clusters and groups, while younger blue spiral galaxies are aligned in less dense areas, tracing the sub-filaments. Through low surface brightness processing, the analysis focuses on outer isophotes, which are particularly sensitive to environmental interactions due to their weak gravitational binding, allowing for a detailed examination of how the filamentary environment shapes galaxy evolution. Concurrently, I have used the Euclid Early Release Observations (ERO) to conduct a detailed study of the Perseus cluster, a key component of the Pisces-Perseus filament. This part of the study focuses on disk galaxies, specifically examining structural features such as breaks in their surface brightness profiles. Incorporating observations from Euclid, this research opens new pathways for the in-depth study of LSB features in the local universe.