GLOBAL STRUCTURE OF THREE DISTINCT ACCRETION FLOWS AND OUTFLOWS AROUND BLACK HOLES FROM TWO-DIMENSIONAL RADIATION-MAGNETOHYDRODYNAMIC SIMULATIONS

Abstract

With a two-dimensional global Radiationmagnetohydrodynamic (RMHD) code [1], we could reproduce three distinct inflow-outflow modes around black holes. Our three models correspond to the twodimensional RMHD version of the slim disk (supercritical flow), the standard disk, and the RIAF, all with substantial outflows (see Figure 1) [2]. We find the supercritical disk accretion flow, of which the photon luminosity exceeds the Eddington luminosity. The vertical component of the radiation force balances that of the gravity in the disk region but it largely exceeds the gravity above the disk. Our RMHD simulations reveal a new type of jet, i.e., the radiatively driven, magnetically collimated outflow, which might account for the jets of radio-loud NLS1s and microquasars [3,4]. The disk, the