The mechanism that drives electrostatic solitary waves to propagate in the Earth's magnetosphere and solar wind

Afify, M. S.; Tolba, R. E.; Moslem, W. M.

doi:10.1002/ctpp.202200041

Cited by 7 publications

(4 citation statements)

References 58 publications

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“…In this section, we consider the propagation of non-linear IAWs in an unmagnified, collisionless plasma consisting of three components positive ions, proton beam and electrons which have Maxwellian distribution. Therefore, the dynamics of potential oscillations in our plasma is governed by the following normalised equations: for positive ions (Afify et al, 2022;Alotaibi et al, 2021)…”

Section: Governing Equations and Derivation Of Evolution Equationmentioning

confidence: 99%

“…With regard to plasma models discussed previously, the fluid constituent is usually composed largely of positive ions with few negative ions, which are treated as strictly hot. Likewise, some of the other models indicated that positive ions and superthermal electrons are abundant in the plasma regime (Yahia et al, 2021;Afify et al, 2022). Some theoretical studies that have focused on the large-amplitude slow electrostatic potential considered positive ions to be the coldest component, and negative ions to be the hottest, provided that the thermal rates of both types of ions are different (Mushinzimana et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Propagation of different kinds of non-linear ion-acoustic waves in Earth’s magnetosphere

Alharthi

Tolba

2022

Astrophys Space Sci

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The non-linear propagation of different kinds of ion-acoustic waves (IAWs) in multi-component plasma involving proton beam, positive ions and isothermal electrons has been studied. Using the derivative expansion method of basic equations, namely the hydrodynamic and Poisson equations, they are reduced to a single evolution equation of the non-linear Schrödinger (NLS) equation. By applying this model to plasma formed in Earth's magnetosphere, different waves can be predicted that express the properties of the plasma. Using the separating variables method and the G ′ /G-expansion method, we derived the exact analytical solutions to the evolution equation by using different solution regions in which non-linear waves are defined. A comparison has been made between the solutions describing the differential equation in each region in which the solution can appear using the data on the Earth's magnetosphere in the study by Alotaibi et al. (2021).

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Section: Governing Equations and Derivation Of Evolution Equationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Propagation of different kinds of non-linear ion-acoustic waves in Earth’s magnetosphere

Alharthi

Tolba

2022

Astrophys Space Sci

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“…On the other hand, in laboratory experiments the scientists may control the conditions to produce certain wave. However, in the natural universe the perturbations appear and grow with no expecting what kind of wave evolution [9,10].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear shocklike, soliton, and periodic dust-ion-acoustic waves in Jupiter ionosphere

Moslem

El-qumaish²,

Tolba³

et al. 2022

Alfarama Journal of Basic & Applied Sciences

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For the time being, investigation of nonlinear structures in space have become an important tool that plays a role in the flybys electronic devices, as it has a very remarkable feature to protect the electronics used in spacecrafts. The dynamics behavior of nonlinear dust-ion-acoustic shock-like, soliton, and periodic waves are investigated in a stationary positively charged dusty plasma, mobile ions and isothermal electrons those interact with streaming solar wind ions and electrons. The basic equations describing the dynamics of dust-ion-acoustic waves is reduced to one evolution equation called nonlinear Korteweg-de Vries (KdV) equation using the reductive perturbation method. Possible solutions of the KdV equation are obtained including shock-like, soliton, and periodic waves solutions using a traveling wave transformation. The e ects of di erent plasma parameters (such as proton solar wind beam temperature, streaming velocity, and ion masses as well as Jupiter positive ions temperature and mass) on the behavior of the shocklike, soliton, and periodic waves have been examined.

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“…The results showed that the profile of the solitary waves is observed to be affected by changing the plasma parameters. Moreover, the generation of electrostatic waves by counter electron beam in the Earth's magnetosphere and the observation of soliatry waves in the solar wind had been investigated [38].…”

Section: Introductionmentioning

confidence: 99%

Evidence of oblique electron acoustic solitary waves triggered by magnetic reconnection in Earth’s magnetosphere

Atteya¹,

El‐Labany²,

Karmakar³

et al. 2022

Phys. Scr.

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Motivated by the recent Magnetospheric Multiscale (MMS) observations of oblique electron acoustic waves, we addressed the generation mechanism of the observed waves by utilizing the reductive perturbation technique. The nonlinear Zakharov-Kuznetsov (ZK) equation is derived for collisionless, magnetised plasma composed of cool inertial background electrons, the cool inertial electron beam, hot inertialess suprathermal electrons represented by a $\kappa$-distribution, and stationary ions. Moreover, the instability growth rate is derived by using the small-$k$ perturbation expansion method. Our findings reveal that the structure of the electrostatic wave profile is significantly influenced by the external magnetic field, the unperturbed hot, cool, and electron beam densities, the obliquity angle, and the rate of superthermality. Such parameters also affect the instability growth rate. This study clarifies the characteristics of the oblique electron solitary waves that may be responsible for changing the electron and ion distribution functions, which alter the magnetic reconnection process. Moreover, increasing the growth rate with the plasma parameters could be a source of anomalous resistivity that enhances the rate of magnetic reconnection.

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The mechanism that drives electrostatic solitary waves to propagate in the Earth's magnetosphere and solar wind

Cited by 7 publications

References 58 publications

Propagation of different kinds of non-linear ion-acoustic waves in Earth’s magnetosphere

Propagation of different kinds of non-linear ion-acoustic waves in Earth’s magnetosphere

Nonlinear shocklike, soliton, and periodic dust-ion-acoustic waves in Jupiter ionosphere

Evidence of oblique electron acoustic solitary waves triggered by magnetic reconnection in Earth’s magnetosphere

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