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 Star Formation & Evolu (3) Active Galactic Nu (2) Interstellar Me (2) Solar System/Planetary Sci (2) Astronomy Educa (1) Cosmo (1) Galaxy Formation & Evolu (1) GRBs (1) Heliophy (1) High-Energy Pheno (1) Supernovae (1) (-) Exopla (1) State AL (1) BC (1) CA (7) HI (1) MA (1) MD (7) NC (1) NM (2) OR (1) PA (3) SC (1) TX (2) (-) NY (1) Facet State City Facet City Membership Class Full Member (1) Facet Membership Class Division DPS (8) DDA (2) HAD (2) 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