00497nas a2200205   4500000000100000000000100001008004100002100001300043700001500056700001600071700001600087700002000103700001800123700001400141700002100155700001800176245008100194300000800275490000800283       2016                            d1 aR.-S. Lu1 aF. Roelofs1 aV. L. Fish1 aH. Shiokawa1 aS. S. Doeleman1 aC. F. Gammie1 aH. Falcke1 aT. P. Krichbaum1 aJ. A. Zensus00aImaging an Event Horizon: Mitigation of Source Variability of Sagittarius A*  a1730 v817