Ben Zuckerman
UC Los Angeles



Title:  Evidence for Rocks and Rocky Planets: From the Zero-age Main Sequence
to White Dwarfs


         The presentation will focus on (a) evidence for and
         delineation of the epoch of final catastrophic mass accretion
         onto terrestrial planets around sun-like stars, and (b)
         evidence for rocky asteroids and planets -- and measurement
         of their bulk elemental compositions -- in planetary systems
         orbiting white dwarf stars.