Abstract
Abstract The physical mechanism of magnetosonic perturbations which modifies the Jeans instability in streaming quantum dusty magnetoplasmas is examined. These perturbations are low frequency and electromagnetic in nature that propagate with Alfvén speed. The fluid model consisting of momentum balance equations for quantum plasmas, Poisson’s equation for gravitational potential, and Maxwell’s equations for magnetosonic perturbations is used for the coupled solution. The numerical analysis of the dispersion relation elaborates the significant contribution of streaming speed of plasma species at equilibrium v 0, uniform external magnetic field B 0, electron number density at equilibrium n 0e, and variable dust mass m d over the Jeans instability. This study helps to understand the possible mechanism responsible for the formation of astrophysical objects.
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