4:00 pm Thursday, December 15, 2011 Harvard-Smithsonian Center for Astrophysics CfA Colloquium Series Phillips Auditorium, 60 Garden Street, Cambridge "Metal-rich white dwarfs as signposts of planet formation" Roman Rafikov Princeton tea and cookies at 3:30 p.m. http://www.cfa.harvard.edu/events/colloquia