Abstract
Relativistic jets are collimated plasma outflows with relativistic speeds. Astrophysical objects involving relativistic jets are a system comprising a compact object such as a black hole, surrounded by rotating accretion flows, with the relativistic jets produced near the central compact object. The most accepted models explaining the origin of relativistic jets involve magnetohydrodynamic (MHD) processes. Over the past few decades, many general relativistic MHD (GRMHD) codes have been developed and applied to model relativistic jet formation in various conditions. This short review provides an overview of the recent progress of GRMHD simulations in generating relativistic jets and their modeling for observations.
Highlights
Relativistic jets are amongst the most powerful astrophysical phenomena discovered to date
I will overview the recent progress in the study of relativistic jet formation via general relativistic MHD (GRMHD) simulations and the modeling of relativistic jets based on the results of GRMHD simulations
Pioneering work of relativistic jet formation via GRMHD simulations was performed by Koide et al [51,52] in the consideration of a Keplerian thin accretion disk with a strong vertical magnetic field around a non-rotating black hole
Summary
Relativistic jets are amongst the most powerful astrophysical phenomena discovered to date. In some supermassive BHs, including the primary targets of observations by the Event Horizon Telescope Collaboration (EHTC), i.e., Sgr A* and M87, their mass accretion rates are well below the Eddington accretion rate, M 10−2 M Edd [41,42] In this regime, the accretion flow advects most of the viscously released energy into the BH rather than radiating it to infinity. In order to understand accretion physics in these systems, radiation MHD models with self-consistently coupled gas, radiation, and magnetic fields are important In this short review, I will overview the recent progress in the study of relativistic jet formation via GRMHD simulations and the modeling of relativistic jets based on the results of GRMHD simulations.
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