Top row: Observed filament eruption evolution in the 171 Å channel. First panel: Filament before eruption. Second panel: Bright fan after eruption (arrow and dashed line), which eventually disappears. Third panel: Post-eruptive arcades (white arrow). Bottom row: Simulated σ = 1 results in the synthetic 171 Å channel at instrument resolution, highlighting the same structures with white arrows and dashed lines. Observational images are retrieved from the AIA Filament Eruption Catalogue.