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Magnetosonic waves propagation in a magnetorotating quantum plasma
Yusra A A Hager1, Mahmood A H Khaled2, Mohamed A Shukri2
1Department of Physics, Faculty of Education, Sana'a University, Sana'a, Yemen.
Physical Review. E
|June 17, 2023
Summary
This study explores magnetosonic waves in quantum plasma, revealing how rotation and quantum effects alter wave properties and shock structures. Findings are relevant for astrophysical environments like neutron stars.
Area of Science:
- Plasma Physics
- Quantum Mechanics
- Astrophysics
Background:
- Magnetosonic waves are crucial in magnetized plasmas.
- Quantum effects become significant in dense astrophysical objects.
- Rotation introduces Coriolis forces affecting plasma dynamics.
Purpose of the Study:
- Investigate magnetosonic waves in a rotating quantum plasma.
- Analyze the influence of quantum effects and rotation on wave properties.
- Examine nonlinear shock wave structures.
Main Methods:
- Utilized the quantum magnetohydrodynamic (QMHD) model.
- Derived the nonlinear Korteweg-de Vries-Burger equation via reductive perturbation.
- Analyzed shock profiles using Bernoulli's equation and numerical simulations (Runge-Kutta).
Main Results:
- Identified fast and slow magnetosonic modes with frequencies modified by rotation and quantum corrections.
- Derived a nonlinear equation governing wave propagation.
- Characterized shock wave structures (monotonic and oscillatory) influenced by plasma parameters.
Conclusions:
- Quantum and rotational effects significantly impact magnetosonic waves and shock structures.
- The study provides insights into wave phenomena in dense, rotating quantum plasmas.
- Results have potential applications in understanding astrophysical phenomena in neutron stars and white dwarfs.
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