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 Exopla (1) Galaxy Formation & Evolu (1) Heliophy (1) Solar System/Planetary Sci (1) (-) Interstellar Me (1) (-) Star Formation & Evolu (1) State CA (4) HI (1) IA (1) MA (4) MD (5) MI (1) MN (1) NC (1) NM (3) NV (1) OR (1) PA (3) TX (1) VA (1) WA (1) WI (1) (-) NY (1) Facet State City Facet City Membership Class Alumni Affiliate (1) Undergrad Student (2) (-) Full Member (1) Facet Membership Class Division DPS (3) HEAD (3) SPD (1) (-) LAD (1) Facet Division Showing 1-1 of 1 results Dmitry Ivanov Full Member Affiliation Columbia University State/Province NY Country United States