Speaker
Description
I present the first statistical study of circumgalactic outflows mapped through MUSE observations of Mg II 2796, 2803 emission, revealing extended halos that span several tens of kiloparsecs from their host galaxies. These observations herald a significant advance for deciphering the role of feedback processes in regulating galaxy evolution. Our analysis combines deep MUSE observations with an outflow modeling framework to interpret the kinematics and geometry of Mg II halos. This framework was initially applied to a spectacular Mg II emission halo around a star-forming galaxy recently discovered by us in the Hubble Ultra Deep Field, featuring a prominent P-Cygni spectral profile and an emission halo extending out to at least 30 kpc. We have now become able to expand our approach to a much larger sample of ~40 galaxies at $0.7
