00445nas a2200181   4500000000100000000000100001008004100002100001500043700001100058700001600069700001500085700001300100700001900113700001300132245010200145300000800247490000800255       2009                            d1 aC.-K. Chan1 aS. Liu1 aC. L. Fryer1 aD. Psaltis1 aF. Özel1 aG. Rockefeller1 aF. Melia00aMHD Simulations of Accretion onto Sgr A*: Quiescent Fluctuations, Outbursts, and Quasiperiodicity  a5120 v701