Some First Steps Towards a Radiation GRMHD Code: Radiative Effects on Accretion Rate onto a Kerr Black Hole - AstrophysicsReportar como inadecuado




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Abstract: The role of radiation in general relativistic magnetohydrodynamic GRMHDaccretion simulations is discussed through axisymmetric simulations of theevolution of an initial torus seeded with a weak magnetic field. The papercompares and contrasts the rate of accretion onto a Kerr black hole and massflux out out of the initial torus at large radii in the GRMHD code of DeVilliers and Hawley and a newly developed radiative GRMHD code. This rGRMHDcode currently operates in the diffusion approximation, restricting the studyof radiative effects to the bound portion of the accretion disk-jet system.However, these preliminary findings suggest that radiative effects do play apotentially significant role in regulating the accretion flow.



Autor: Jean-Pierre De Villiers

Fuente: https://arxiv.org/







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