Arbitrary amplitude dust–ion acoustic solitary structures in electronegative plasma

Ripin Kohli; N. S. Saini; T. S. Gill

doi:10.1007/s10509-018-3414-y

Arbitrary amplitude dust–ion acoustic solitary structures in electronegative plasma

Ripin Kohli, N. S. Saini, T. S. Gill

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

2 Scopus citations

Abstract

In the present study existence domains of large amplitude dust–ion acoustic (DIA) solitary structures are analyzed in an unmagnetized and collisionless, electronegative plasma containing inertial positive and negative ions, inertialess superthermal electrons with two different temperatures and negatively charged stationary dust. Using the Sagdeev pseudopotential technique, the energy-balance equation has been derived and the critical values (lower and upper limits) of the Mach number are also determined. The effect of different physical parameters has been analyzed for the formation of these nonlinear structures. Also the critical values of different physical parameters have been determined to establish parametric regimes for the existence of positive/negative potential DIA solitary structures.

Original language	English
Article number	193
Journal	Astrophysics and Space Science
Volume	363
Issue number	9
DOIs	https://doi.org/10.1007/s10509-018-3414-y
State	Published - Sep 1 2018
Externally published	Yes

Funding

Acknowledgements This work is supported by DRS-II (SAP) No. F530/17/DRS-II/2015 (SAP-I) UGC, New Delhi. The corresponding author may provide the numerical data which was used to produce tables and figures in the present investigation.

Funders	Funder number
DRS-II

Keywords

Dust–ion acoustic waves
Electronegative plasma
Superthermal electrons
κ-Distribution

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10.1007/s10509-018-3414-y

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abstract = "In the present study existence domains of large amplitude dust–ion acoustic (DIA) solitary structures are analyzed in an unmagnetized and collisionless, electronegative plasma containing inertial positive and negative ions, inertialess superthermal electrons with two different temperatures and negatively charged stationary dust. Using the Sagdeev pseudopotential technique, the energy-balance equation has been derived and the critical values (lower and upper limits) of the Mach number are also determined. The effect of different physical parameters has been analyzed for the formation of these nonlinear structures. Also the critical values of different physical parameters have been determined to establish parametric regimes for the existence of positive/negative potential DIA solitary structures.",

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AU - Saini, N. S.

AU - Gill, T. S.

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Y1 - 2018/9/1

N2 - In the present study existence domains of large amplitude dust–ion acoustic (DIA) solitary structures are analyzed in an unmagnetized and collisionless, electronegative plasma containing inertial positive and negative ions, inertialess superthermal electrons with two different temperatures and negatively charged stationary dust. Using the Sagdeev pseudopotential technique, the energy-balance equation has been derived and the critical values (lower and upper limits) of the Mach number are also determined. The effect of different physical parameters has been analyzed for the formation of these nonlinear structures. Also the critical values of different physical parameters have been determined to establish parametric regimes for the existence of positive/negative potential DIA solitary structures.

AB - In the present study existence domains of large amplitude dust–ion acoustic (DIA) solitary structures are analyzed in an unmagnetized and collisionless, electronegative plasma containing inertial positive and negative ions, inertialess superthermal electrons with two different temperatures and negatively charged stationary dust. Using the Sagdeev pseudopotential technique, the energy-balance equation has been derived and the critical values (lower and upper limits) of the Mach number are also determined. The effect of different physical parameters has been analyzed for the formation of these nonlinear structures. Also the critical values of different physical parameters have been determined to establish parametric regimes for the existence of positive/negative potential DIA solitary structures.

KW - Dust–ion acoustic waves

KW - Electronegative plasma

KW - Superthermal electrons

KW - κ-Distribution

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JO - Astrophysics and Space Science

JF - Astrophysics and Space Science

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ER -

Arbitrary amplitude dust–ion acoustic solitary structures in electronegative plasma

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Keywords

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