Large-amplitude dust inertial Alfvén waves in an electron-depleted dusty plasma

Manpreet Singh; Kuldeep Singh; N. S. Saini

doi:10.1007/s12043-021-02226-6

Large-amplitude dust inertial Alfvén waves in an electron-depleted dusty plasma

Manpreet Singh, Kuldeep Singh, N. S. Saini

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

The existence of the large-amplitude dust inertial Alfvén waves (DIAWs) has been presented in an electron-depleted, two-fluid dust-ion plasma. Linear analysis shows that the DIAWs travel slower than the dust Alfvén waves. DIAWs are the obliquely (with respect to the external magnetic field) propagating oscillations of dust density, having the characteristics of a solitary wave. In order to observe the nonlinear behaviour of the DIAWs, the Sagdeev pseudopotential method has been used to derive the energy balance equation and from the expression of the Sagdeev pseudopotential, the existence conditions for the DIAWs have also been determined. It is observed that density rarefactions travelling at sub- and super-Alfvénic speeds are associated with DIAWs.

Original language	English
Article number	197
Journal	Pramana - Journal of Physics
Volume	95
Issue number	4
DOIs	https://doi.org/10.1007/s12043-021-02226-6
State	Published - Dec 2021
Externally published	Yes

Funding

NSS gratefully acknowledges the support for this research work from Department of Science and Technology, Govt. of India, New Delhi under DST-SERB project No. CRG/2019/003988.

Funders	Funder number
DST-SERB	CRG/2019/003988
Department of Science and Technology, Ministry of Science and Technology, India

Keywords

52.35.Bj; 52.27.Lw; 52.35.Sb; 94.05.Fg; 52.35.–g
Dusty plasmas
Sagdeev pseudopotential
electron depleted
inertial Alfvén waves
solitary waves

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10.1007/s12043-021-02226-6

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title = "Large-amplitude dust inertial Alfv{\'e}n waves in an electron-depleted dusty plasma",

abstract = "The existence of the large-amplitude dust inertial Alfv{\'e}n waves (DIAWs) has been presented in an electron-depleted, two-fluid dust-ion plasma. Linear analysis shows that the DIAWs travel slower than the dust Alfv{\'e}n waves. DIAWs are the obliquely (with respect to the external magnetic field) propagating oscillations of dust density, having the characteristics of a solitary wave. In order to observe the nonlinear behaviour of the DIAWs, the Sagdeev pseudopotential method has been used to derive the energy balance equation and from the expression of the Sagdeev pseudopotential, the existence conditions for the DIAWs have also been determined. It is observed that density rarefactions travelling at sub- and super-Alfv{\'e}nic speeds are associated with DIAWs.",

keywords = "52.35.Bj; 52.27.Lw; 52.35.Sb; 94.05.Fg; 52.35.–g, Dusty plasmas, Sagdeev pseudopotential, electron depleted, inertial Alfv{\'e}n waves, solitary waves",

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AU - Singh, Manpreet

AU - Singh, Kuldeep

AU - Saini, N. S.

PY - 2021/12

Y1 - 2021/12

N2 - The existence of the large-amplitude dust inertial Alfvén waves (DIAWs) has been presented in an electron-depleted, two-fluid dust-ion plasma. Linear analysis shows that the DIAWs travel slower than the dust Alfvén waves. DIAWs are the obliquely (with respect to the external magnetic field) propagating oscillations of dust density, having the characteristics of a solitary wave. In order to observe the nonlinear behaviour of the DIAWs, the Sagdeev pseudopotential method has been used to derive the energy balance equation and from the expression of the Sagdeev pseudopotential, the existence conditions for the DIAWs have also been determined. It is observed that density rarefactions travelling at sub- and super-Alfvénic speeds are associated with DIAWs.

AB - The existence of the large-amplitude dust inertial Alfvén waves (DIAWs) has been presented in an electron-depleted, two-fluid dust-ion plasma. Linear analysis shows that the DIAWs travel slower than the dust Alfvén waves. DIAWs are the obliquely (with respect to the external magnetic field) propagating oscillations of dust density, having the characteristics of a solitary wave. In order to observe the nonlinear behaviour of the DIAWs, the Sagdeev pseudopotential method has been used to derive the energy balance equation and from the expression of the Sagdeev pseudopotential, the existence conditions for the DIAWs have also been determined. It is observed that density rarefactions travelling at sub- and super-Alfvénic speeds are associated with DIAWs.

KW - 52.35.Bj; 52.27.Lw; 52.35.Sb; 94.05.Fg; 52.35.–g

KW - Dusty plasmas

KW - Sagdeev pseudopotential

KW - electron depleted

KW - inertial Alfvén waves

KW - solitary waves

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JO - Pramana - Journal of Physics

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IS - 4

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ER -

Large-amplitude dust inertial Alfvén waves in an electron-depleted dusty plasma

Abstract

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Keywords

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