AO Home AO Astronomy Robert Minchin Blog Publications IDL Routines . My primary research projects are the Arecibo L-band Feed Array (ALFA) extra-galactic neutral hydrogen (HI) surveys. I am PI of the Arecibo Galaxy Environment Survey (AGES) and have a strong involvement with the ALFA Zone of Avoidance (ALFA ZOA) Survey, both of which study HI in the local universe. ... The Evolution of Galaxies through the Neutral Hydrogen Window Conference held at Arecibo in February 2008 . ... Arecibo . ...