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Observational evidence of a extended co-rotating disc + a galactic outflow on scales of several tens of kpc
This video summarizes the recent paper by Tejos et al. 2021 on the kinematics of an isolated galaxy’s atmosphere at z~0.77 . We observe the circumgalactic medium (CGM) in absorption using IFU data of background gravitational arcs. We find evidence of an extended co-rotating disc plus a galactic outflow on scales of several tens of kpc, based on the analysis of 42 independent spatial spaxels of a single galaxy halo.