00378nas a2200157   4500000000100000000000100001008004100002100001900043700001500062700002000077700001200097700002000109245007600129300000700205490000800212       2009                            d1 aS. S. Doeleman1 aV. L. Fish1 aA. E. Broderick1 aA. Loeb1 aA. E. E. Rogers00aDetecting Flaring Structures in Sagittarius A* with High-Frequency VLBI  a590 v695