Jeans instability with exchange effects in quantum dusty magnetoplasmas

Journal Article · Sat Aug 15 00:00:00 EDT 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4928437· OSTI ID:22490034

Rasheed, A. ^[1]; Rozina, Ch. ^[2]; Jung, Y. -D. ^[3]; Salimullah, M. ^[4]

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1. Department of Physics, Government College University, Faisalabad 38000 (Pakistan)
2. Department of Physics, Lahore College for Women University, Lahore 54000 (Pakistan)
3. Department of Applied Physics and Department of Bionanotechnology, Hanyang University, Ansan, Kyunggi-Do 426-791 (Korea, Republic of)
4. Department of Physics, Jahangirnagar University, Savar, Dhaka 1342 (Bangladesh)

Jeans instability is examined in magnetized quantum dusty plasmas using the quantum hydrodynamic model. The quantum effects are considered via exchange-correlation potential, recoil effect, and Fermi degenerate pressure, in addition to thermal effects of plasma species. It is found that the electron exchange and correlation potential have significant effects over the threshold value of wave vector and Jeans instability. The presence of electron exchange and correlation effect shortens the time of dust sound that comparatively stabilizes the self gravitational collapse. The results at quantum scale are helpful in understanding the collapse of the self-gravitating dusty plasma systems.

• OSTI ID: 22490034
• Journal Information: Physics of Plasmas, Vol. 22, Issue 8; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COSMIC DUST
ELECTRON EXCHANGE
GRAVITATIONAL COLLAPSE
HYDRODYNAMIC MODEL
PLASMA
PLASMA INSTABILITY
QUANTUM MECHANICS
RECOILS
SOUND WAVES
TEMPERATURE DEPENDENCE