Choose timezone
Your profile timezone:
Feedback from stars and active galactic nuclei is one of the most important processes steering the baryon cycle in galaxies, i.e., the set of complex phenomena driving the interplay between gas, dust, and stars in their interstellar medium (ISM). Such a feedback could be strong enough to produce galactic-scale outflows able to sweep the gas and the dust out of the galaxies, drastically shaping their growth. Local dwarf galaxies are ideal candidates to investigate the impact of stellar feedback on galaxy evolution. Indeed, because of their shallow gravitational potential, outflows developed in their ISM could carry gas and dust into the circumgalactic (or even intergalactic) medium more easily than for high-mass sources, substantially affecting their star-formation activity. In addition, they are thought to be analogues of high-redshift sources, opening a window on the study of the primordial Universe. In this seminar, I will present new observations of galactic outflows in a sample of nearby dwarf galaxies as obtained through the Herschel Space Observatory. I will then discuss their role in the evolution of galaxies from the distant to the local Universe, and their importance in calibrating state-of-the-art chemical evolution models, that are crucial for a comprehensive description of the baryon cycle across cosmic time.