Abstract

Contributed Talk - Splinter StarFormation

New insights on the baryon cycle of low-mass galaxies across cosmic time

Michael Romano
MPIfR

The evolution of galaxies is shaped by the baryon cycle—the complex interplay between gas, dust, and star formation on interstellar, circumgalactic and intergalactic scales. Among the key drivers of this cycle, gas inflows and outflows are of crucial importance as they regulate the fuel available for star formation, yet their observations and modeling remain challenging. In this talk, I will present new observational constraints on galactic-scale outflows in both nearby and primordial galaxies, with a focus on low-mass, low-metallicity systems where feedback is expected to be most efficient. Using data from Herschel, ALMA, DESI, and JWST, we characterize the strength and multi-phase nature of these outflows and trace how they redistribute gas and dust from the interstellar to the circumgalactic medium. Our results provide key insights into the baryon cycle of low-mass galaxies and offer critical benchmarks for chemical evolution models and cosmological simulations of galaxy evolution.