The Exchange-Correlation Field Effect over the Magnetoacoustic-Gravitational Instability in Plasmas
- Title
- The Exchange-Correlation Field Effect over the Magnetoacoustic-Gravitational Instability in Plasmas
- Author
- 정영대
- Keywords
- Fluid Model; Magnetoacoustic Wave; Quantum Plasmas; Self-Gravitational Instability
- Issue Date
- 2017-10
- Publisher
- Verlag der Zeitschrift fur Naturforschung
- Citation
- Zeitschrift für Naturforschung - Section A Journal of Physical Sciences, v. 72, NO. 10, Page. 915.0-921.0
- Abstract
- Jeans instability with magnetosonic perturbations is discussed in quantum dusty magnetoplasmas. The quantum and smaller thermal effects are associated only with electrons. The quantum characteristics include exchange-correlation potential, recoil effect, and Fermi degenerate pressure. The multifluid model of plasmas is used for the analytical study of this problem. The significant contribution of electron exchange is noticed on the threshold value of wave vector and Jeans instability. The presence of electron exchange and correlation effects reduce the time to stabilise the phenomenon of self-gravitational collapse of massive species. The results of Jeans instability by magnetosonic perturbations at quantum scale help to disclose the details of the self-gravitating dusty magnetoplasma systems.
- URI
- https://www.degruyter.com/document/doi/10.1515/zna-2017-0164/htmlhttps://repository.hanyang.ac.kr/handle/20.500.11754/181998
- ISSN
- 0932-0784;1865-7109
- DOI
- 10.1515/zna-2017-0164
- Appears in Collections:
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > APPLIED PHYSICS(응용물리학과) > Articles
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