1. NAIC, Arecibo Observatory
Arecibo has long been at the forefront of extragalactic HI astronomy. This continues today with the results coming out of blind surveys with the ALFA multi-pixel receiver, pointed surveys with the L-band wide receiver, and many other HI projects. I will present some of the exciting HI science to emerge from Arecibo in the last year, which include a giant ring of gas found in the Local Group, the most metal-poor, gas-rich galaxy known, and many others.
The Arecibo Observatory is operated by SRI International under a cooperative agreement with the National Science Foundation (AST-1100968), and in alliance with Ana G. Mndez-Universidad Metropolitana, and the Universities Space Research Association.