ARCTOMO
Gravitational-arc tomography
Spatially resolved spectroscopy of the high-z Circumgalactic Medium
Spatially resolved spectroscopy of the high-z Circumgalactic Medium
We map the coherent spatial and kinematic distribution of galaxy halos at high redshift against giant gravitational arcs. Our first VLT/MUSE observations have unveiled clumpy and anisotropic media around z~1 star-forming galaxies.