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 (7) Exopla (5) Galaxy Formation & Evolu (5) Astronomy Educa (4) Active Galactic Nu (3) GRBs (3) High-Energy Pheno (3) Supernovae (3) Astrobio (2) Galactic Structure & Stellar Populat (2) Interstellar Me (2) Solar System/Planetary Sci (2) Cosmo (1) (-) Heliophy (1) State NY (1) Facet State City A-1220 Vienna (1) Acton (1) Albuquerque (1) Alexandria (1) Anacortes (1) Arlington (1) Athens (1) Atlanta (2) Auburn (1) Austin (1) Baltimore (4) Berkeley (3) Bethesda (1) Big Bear City (2) Boulder (11) Cambridge (6) Columbus (1) Crestwood (1) Dahlonega (1) Denver (1) Eau Claire (1) Fairfax (2) Flagstaff (2) Fort Myers (1) Freiburg Im Breisgau (1) Fresno (1) Grand Rapids (1) Greenbelt (16) Greensboro (1) Hanover (1) Hawthorn (1) Houston (2) Huntsville (4) Iowa City (1) Kirtland Afb (2) Las Vegas (1) Laurel (4) Lexington (1) Logan (1) Los Alamos (2) Los Angeles (1) Lowell (1) Madison (1) Marriottsville (1) Medford (1) Minneapolis (1) Mohegan Lake (1) Naples (1) Newark (2) Oakland (1) Orangeburg (1) Palm Harbor (1) Palo Alto (2) Pasadena (4) Pensacola (1) Pittsburgh (1) Potomac (1) Pukalani (1) Reno (1) Rohnert Park (1) San Diego (3) San Jose (1) Santa Cruz (1) Shrewsbury (1) Silver Spring (1) South Pasadena (1) Springfield (1) Stanford (3) Stansbury Park (1) Staten Island (1) Tempe (1) University (1) University Park (1) Villanova (1) Washington (8) Westfield (1) (-) New York (1) Facet City Membership Class Div Affil - SPD (1) (-) Full Member (1) Facet Membership Class Division LAD (1) SPD (1) Facet Division Showing 1-1 of 1 results Michael Hahn Full Member Affiliation Columbia University State/Province NY Country United States