Numerical simulations of sueper-Eddington accretion flows and outflows around black holes and neutron stars
Abstract
By performing multi-dimensional radiation-MHD simulations, we reveal the inflow-outflow structure around the black holes (BHs) and the neutron stars (NSs). In both cases, the quasi-steady, super-Eddington disk forms around the central objects. The disk is supported by the strong radiation pressure and the radiatively-driven outflows are launched from the disk surface. The hot outflow produces the high-energy X-ray photons via Comptonization. In addition, powerful outflows fragments into many gas clouds by the radiation RT instability. Such gas clouds would lead to the X-ray time variation with several seconds for the stellar mass black holes. Our results basically consistent with the recent observations of ultraluminous X-ray sources.
- Publication:
-
42nd COSPAR Scientific Assembly
- Pub Date:
- July 2018
- Bibcode:
- 2018cosp...42E2496O