Member Directory The AAS maintains a membership directory to facilitate member interaction and to support the conduct of official Society business. Search directory for: Filter Results By Clear Filters Type of Science Active Galactic Nu (1) Cosmo (1) Galaxy Formation & Evolu (1) State CA (2) CT (2) MD (1) PA (1) VA (2) Facet State City Facet City Membership Class Facet Membership Class Division HEAD (4) Facet Division