Dynamical fast flow generation/acceleration in dense degenerate two-fluid plasmas of astrophysical objects

TL;DR

This paper demonstrates that in dense degenerate two-fluid astrophysical plasmas, turbulent magnetic and velocity fields can generate and accelerate macro-scale plasma flows through a coupled dynamo mechanism, resulting in extremely fast outflows.

Contribution

It introduces a unified reverse dynamo/dynamo mechanism explaining macro-scale flow generation in degenerate plasmas, highlighting the role of magneto-fluid coupling and degeneracy levels.

Findings

Macro-scale flows grow proportionally with initial turbulent magnetic energy.

Generated flows can reach super-Alfvénic speeds with Mach numbers > 10^3.

Existence of solutions guarantees strong macro-scale outflows in realistic conditions.

Abstract

We have shown the generation/amplification of fast macro-scale plasma flows in the degenerate two-fluid astrophysical systems with initial turbulent (micro--scale) magnetic/velocity fields due to the Unified Reverse Dynamo/Dynamo mechanism. This process is simultaneous with and complementary to the micro-scale unified dynamo. It is found that the generation of macro--scale flows is an essential consequence of the magneto-fluid coupling; the generation of macro--scale fast flows and magnetic fields are simultaneous, they grow proportionately. The resulting dynamical flow acceleration is directly proportional to the initial turbulent magnetic (kinetic/magnetic) energy in degenerate e-i (degenerate e-p) astrophysical plasma; the process is very sensitive to both the degeneracy level of the system and the magneto-fluid coupling. In case of degenerate e-p plasma, for realistic physical parameters, there always exists such a real solution of dispersion relation for which the formation of strong macro-scale flow/outflow is guaranteed; the generated/accelerated locally super-Alfv\'enic flows are extremely fast with Alfv\'en Mach number $> 10^3$ as observed in a variety of astrophysical outflows