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We present the first quantitative detection of large-scale filamentarystructure at $z \simeq 0.7$ in the large cosmological volume probed by theVIMOS Public Extragalactic Redshift Survey (VIPERS). We use simulations to showthe capability of VIPERS to recover robust topological features in the galaxydistribution, in particular the filamentary network. We then investigate howgalaxies with different stellar masses and stellar activities are distributedaround the filaments and find a significant segregation, with the most massiveor quiescent galaxies being closer to the filament axis than less massive oractive galaxies. The signal persists even after down-weighting the contributionof peak regions. Our results suggest that massive and quiescent galaxiesassemble their stellar mass through successive mergers during their migrationalong filaments towards the nodes of the cosmic web. On the other hand,low-mass star-forming galaxies prefer the outer edge of filaments, a vorticityrich region dominated by smooth accretion, as predicted by the recent spinalignment theory. This emphasizes the role of large scale cosmic flows inshaping galaxy properties.

The VIMOS Public Extragalactic Redshift Survey (VIPERS): Galaxy segregation inside filaments at $z \simeq 0.7$