title: Astronomy. The beat of young stars.
authors.affiliation: Department of Astronomy, University of California, Berkeley, CA 94720, USA. stahler@berkeley.edu.
authors.forename: Steven
authors.initials: S
authors.lastname: Stahler
authors.affiliation: Arcetri Observatory, Largo E. Fermi 5, Florence 50125, Italy.
authors.forename: Francesco
authors.initials: F
authors.lastname: Palla