Orateur
Description
Star formation is a continuous cycle of interchange of matter and energy between stars and the interstellar medium of galaxies. As a result of a complex interplay between gravitational, kinetic, and magnetic energies, shock compressions, and heating/cooling processes, the matter is assembled from the diffuse, large-scales to the dense, small-scales, where gravity prevails over the pressure forces, thereby driving the gravitational collapse into dense cores, the seeds of future stars. In this presentation, I will review recent theoretical and observational works proposing a comprehensive physical scenario for the growth of dense structures from giant interstellar bubbles driven by stellar feedback on ~50-100 pc scales to parsec-scale molecular filaments down to <0.1pc dense cores and 100-1000 au scale protoplanetary disks, where new planets form.