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 State Facet State City Bilthoven (1) Cambridge (2) Garching (1) Gif-sur-Yvette Cedex (1) Leiden (1) Oxford (1) Paris (1) Santiago (2) Sao Paulo (1) VERSOIX (1) Facet City Membership Class Facet Membership Class Division Facet Division