Article
Materials Science, Multidisciplinary
Sunidhi Singla, N. S. Saini
Summary: This investigation focuses on the head-on collision of ion-acoustic multi-solitons and characteristics of ion acoustic rogue waves in an unmagnetized plasma. The Korteweg-de Vries equation is derived and the effects of electron beam parameters on IA solitons are analyzed. Additionally, nonlinear Schrodinger equation is derived from the KdV equation to study different orders rogue waves.
RESULTS IN PHYSICS
(2021)
Article
Engineering, Multidisciplinary
Khalid Khan, Amir Ali, Muhammad Irfan, Obaid Algahtani
Summary: This study examines the linear and nonlinear characteristics of electron-acoustic (EA) shocks in an electron-ion (EI) magnetoplasma containing superthermal electrons. The linear dispersion relation reveals the excitation of electron-acoustic and Langmuir modes. A Korteweg-de Vries Burgers (KdVB) equation is derived using the reduction perturbation (RP) method to evaluate the EA shocks, which affect the variations in the superthermality index and the streaming effect. The study also obtains time fractional KdVB equation for time fractional shock solutions and derives higher order shock wave solutions using the mathbbJ-transform decomposition method. The plasma parameters significantly alter the shock waves. This research is important for understanding coherent EA modes in superthermal magnetoplasmas relevant to the magnetosphere, ionosphere, and laboratory facilities.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Physics, Multidisciplinary
A. Abdikian, M. Eghbali, A. P. Misra
Summary: The theory of low-frequency, long wavelength, electrostatic drift ion-acoustic waves in a nonuniform rotating magnetoplasma with two temperature superthermal electrons is investigated. In the linear limit, the coupling of these waves and drift waves by the density inhomogeneity generates a new wave mode that depends on the density gradient, rotational frequency, and spectral indexes of the superthermal electrons. In the nonlinear regime, an evolution equation for the drift ion-acoustic waves is derived, and its exact solitary and periodic wave solutions are obtained. Numerical analysis shows that these solutions are significantly influenced by the background density gradient, superthermality of electrons, and Coriolis force.
Article
Physics, Multidisciplinary
H. Nawaz, R. Jahangir, W. Masood, M. Siddiq
Summary: This study investigates the nonlinear propagation of electrostatic waves with cubic nonlinearity in a multicomponent dusty plasma. The amplitude of dust ion acoustic mKdV soliton is thoroughly examined based on data from Saturn's magnetosphere. Furthermore, the interaction between two mKdV solitons and the interaction of compressive and rarefactive dust ion acoustic solitons are explored.
Article
Astronomy & Astrophysics
Drew Coffin, Peter Damiano, Peter Delamere, Jay Johnson, Chung-Sang Ng
Summary: This study investigates the origin of electron energization at high latitudes of Jupiter through simulating the propagation of dispersive Alfven waves, and quantifies the impact of these waves on electron energization. It successfully generates electron populations consistent with observations, shedding light on the energy budget of the torus and Io-related auroral emissions.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
(2022)
Article
Physics, Multidisciplinary
G. Hameed, U. Zakir, Q. Haque, M. Rehan, F. Hadi
Summary: This study investigates dust acoustic nonlinear waves in a non-Maxwellian plasmas with dust charge fluctuation, revealing the evolution of wave structures and their dependence on various factors. The analysis provides insights into the nature of such waves in different plasma systems, which could be beneficial for further research and applications.
CHINESE JOURNAL OF PHYSICS
(2021)
Article
Physics, Multidisciplinary
N. S. Saini, Sunidhi Singla
Summary: This investigation presents a study on ion acoustic shocks in a plasma with warm inertial ions and superthermal hot electrons penetrated by an electron beam. The study derives the Burgers equation using the reductive perturbation method and uses the tanh method to obtain its solution for studying the ion acoustic shock structures. By considering the contribution of higher order effects, an inhomogeneous Burgers-type equation is derived and its solution results in the formation of humped-type ion acoustic shocks. The investigation analyzes the combined effects of electron beam and other plasma parameters on the characteristics of different types of ion acoustic shock structures. The findings of this study may help to understand the physics of nonlinear phenomena in studying the dynamics of ion acoustic shocks in space and astrophysical plasma environments.
CHINESE JOURNAL OF PHYSICS
(2022)
Article
Physics, Multidisciplinary
S. Y. El-Monier, A. S. El-Helbawy, Moamen M. Elsayed, M. Saad
Summary: The nonlinear wave propagation in dusty plasmas, which differs significantly from that in normal plasmas, has attracted much attention in recent decades due to its importance in interpreting some astrophysical phenomenon. Several types of acoustic waves propagate in dusty plasmas depending on their time scales. In this study, the propagation of DIA waves in a multi-component dusty plasma system was investigated, showing the effects of magnetic field and superthermal parameters on the Sagdeev potential. Bifurcation analysis was considered and graphically presented under two conditions (A > 0) and (A < 0). This theoretical work is valuable for fully understanding disturbances of the electrostatic in space dusty plasmas.
Article
Nanoscience & Nanotechnology
Shahrina Akter, M. G. Hafez
Summary: This paper analyzes the head-on collision between two-counter-propagating electron acoustic solitons and double layers in an unmagnetized collisionless multi-species plasma. Nonlinear analysis of the collisional wave phenomena is conducted by deriving the coupled Korteweg-de Vries equation, modified KdV equation, and standard Gardner equation. The effects of non-dimensional parameters on the collisional solitons and double layers are examined, revealing the different behavior under compressive and rarefactive conditions.
Article
Geochemistry & Geophysics
Dennis Michael Herschbach, Yongliang Zhang
Summary: The special polar rain aurora case demonstrated a dawn-dusk aligned bar shape, likely caused by solar wind and IMF conditions. Enhanced anti-sunward flux of solar wind superthermal electrons showed a spatial size consistent with the width of the auroral bar when mapped into the polar ionosphere, confirming a connection between the two.
JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
(2021)
Article
Physics, Multidisciplinary
S. Bukhari, Syed RazaAli Raza, S. Ali
Summary: This study investigates the electrostatic twisted ion-acoustic waves with finite orbital angular momentum states and associated kinetic instability in an electron-ion plasma. The plasma model, with superthermal electrons and ions, uses a non-gyrotropic Kappa distribution function, where the free energy source for wave excitation is provided by the relative directed motion of streaming electrons with respect to the ions. The Vlasov-Poisson equations are used within the framework of kinetic theory to derive expressions for dispersion relation and Landau damping rate under paraxial approximation, analyzing threshold conditions for wave dispersion and instability growth rate in the presence of a helical electric field structure.
CHINESE JOURNAL OF PHYSICS
(2021)
Article
Physics, Fluids & Plasmas
R. Jahangir, S. Ali
Summary: The formation and propagation of nonlinear ion-acoustic waves in an unmagnetized cold viscous plasma were studied. The effects of plasma parameters and geometrical factors on the soliton and shock structures were investigated. The shape of the structures was found to be parabolic due to the interplay of transverse and time coordinates.
PLASMA PHYSICS AND CONTROLLED FUSION
(2022)
Article
Physics, Fluids & Plasmas
Manveet Kaur, N. S. Saini
Summary: This paper presents the characteristics of small amplitude dust ion acoustic (DIA) solitons under transverse perturbations in a multispecies plasma with dust impurity and Vasyliunas-Cairns distributed two temperature electrons. Different equations are derived and solutions are obtained to investigate the influence of plasma parameters and higher order effects on the soliton characteristics. The existence of positive and negative potential solitons and the stability analysis of the soliton solution are also discussed.
PHYSICS OF PLASMAS
(2022)
Article
Mechanics
M. Shahzad, N. Imtiaz, H. Rizvi, W. Masood, Albandari W. Alrowaily, Sherif. M. E. Ismaeel, S. A. El-Tantawy
Summary: The study focuses on the properties of the dust-acoustic solitary waves in a complex magnetoplasma consisting of negatively charged moving dust grains, inertialess electrons, and ions obeying Maxwell and kappa distributions in the lower ionospheric region. The reductive perturbation technique is used to obtain the Zakharov-Kuznetsov (ZK) equation within the given framework. The obtained ZK equation is transformed into a planar dynamical system to study the qualitative behavior of the solitary waves. Numerical investigations are conducted to examine the influence of important physical parameters on the profile of the nonlinear structures. The findings contribute to the understanding of low-frequency irregularities in the lower ionosphere.
Article
Engineering, Aerospace
Uday Narayan Ghosh
Summary: Various plasma models have been developed and shown interesting features in auroral plasma, astro-physics plasmas, and spacecraft observations, based on the acknowledgements of space observations. Soliton theory is efficient in describing nonlinear features, and lump soliton solutions of the Kadomstev-Petviashvili equation have been derived using Viking satellite data. The study of lump solitons is attractive and important due to its wide range of applications, and the structures of lump solitons in auroral magnetized plasma vary with parameters.
ADVANCES IN SPACE RESEARCH
(2023)
Article
Physics, Fluids & Plasmas
R. Jahangir, S. Ali, Arshad M. Mirza
PHYSICS OF PLASMAS
(2018)
Article
Physics, Multidisciplinary
Usman Hasan, W. Masood, R. Jahangir, Arshad M. Mirza
Article
Physics, Multidisciplinary
R. Jahangir, S. Ali, Arshad M. Mirza, W. Masood
Article
Physics, Fluids & Plasmas
Usman Hasan, Waqas Masood, Rabia Jahangir, Arshad Majid Mirza
Summary: This study investigated the interaction of obliquely propagating ion acoustic solitary waves in a magnetoplasma with relativistically degenerate electrons. The researchers derived a set of KdV equations for two solitons and observed phase shifts as a result of their interaction. The phase shifts were found to be dependent on the obliqueness and the physical parameters of the plasma, with enhancements in number density leading to increased phase shifts.
CONTRIBUTIONS TO PLASMA PHYSICS
(2021)
Article
Physics, Multidisciplinary
H. Nawaz, W. Masood, R. Jahangir, M. Siddiq
Summary: The multi-soliton solutions of the Gardner equation were obtained using Hirota's bilinear formalism and studied in the context of plasmas for the first time. The simultaneous presence of quadratic and cubic nonlinearities in the Gardner equation may lead to overtaking and head-on interactions among solitons. The plasma parameters influence the spatial scale of interaction, with comparisons made between kappa distributed plasma and Maxwellian case, exploring key differences in the parametric regimes.
Article
Physics, Multidisciplinary
S. Hassan, R. Jahangir, W. Masood, N. Batool, M. Siddiq, A. M. Mirza
Summary: The study investigates low frequency, electrostatic, pure drift mode in dense magnetized electron-ion plasma with relativistically degenerate electrons using the quantum magnetohydrodynamic model. The research shows that the growth rate of waves increases with the ratio of background ion temperature to density, and graphical illustrations demonstrate the effects of various parameters on nonlinear structures. This work may contribute to understanding low frequency phenomena in dense inhomogeneous plasmas such as neutron stars, white dwarfs, and next generation lasers.
Article
Physics, Multidisciplinary
M. Yousaf Khattak, W. Masood, R. Jahangir, M. Siddiq
Summary: This study investigates nonlinear electrostatic waves on the ion time scale in a quantum magnetoplasma with relativistically degenerate electrons, deriving the Zakharov Kuznetsov (ZK) equation and obtaining single and two soliton solutions using Hirota formalism. The research examines nonrelativistic and ultrarelativistic limits of the relativistically degenerate electrons and their interaction with ZK solitons, with different spatial and temporal scales observed for nonrelativistic and ultrarelativistic cases.
WAVES IN RANDOM AND COMPLEX MEDIA
(2021)
Article
Physics, Multidisciplinary
R. Jahangir, S. Ali
Summary: This study investigates the formation of nonlinear ion-acoustic waves in degenerate magnetoplasmas with quantized and trapped electrons. A three-dimensional Zakharov-Kuznetsov equation is derived and the stability is discussed, with numerical analyses showing the impact of quantized magnetic field parameter and electron degeneracy on the amplitude and width of electric potential. The results suggest that higher values of these parameters tend to stabilize solitons in degenerate plasmas, which could be important for understanding wave propagation and instability growth in dense plasmas in stellar and laboratory settings.
FRONTIERS IN PHYSICS
(2021)
Article
Physics, Fluids & Plasmas
Muhammad Shohaib, Waqas Masood, Rabia Jahangir, Mohsin Siddiq, Haider Rizvi
Summary: Dust ion acoustic waves (DIAWs) in multi-component plasmas are analyzed using reductive perturbation technique and fluid theory. The effects of electron flatness and superthermality in phase space on the linear and nonlinear propagation of DIAWs are investigated. The interaction of MKP solitons in the presence of dust and non-Maxwellian electron distributions in Saturn's B-ring is discussed.
CONTRIBUTIONS TO PLASMA PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
Sidra Ali, W. Masood, H. Rizvi, R. Jahangir, Arshad M. Mirza
Summary: In magnetized two-ion component plasmas with distributed electrons, two modes of ion acoustic waves, fast and slow, are observed to exhibit different propagation characteristics of nonlinear solitary structures. The system is shown to admit compressive and rarefactive solitary structures and periodic wave solutions. Changes in the concentration and temperature ratios of heavy and light ions affect the behavior of the fast and slow modes, respectively, altering the propagation of nonlinear ion acoustic waves.
Article
Multidisciplinary Sciences
Wedad Albalawi, Rabia Jahangir, Waqas Masood, Sadah A. Alkhateeb, Samir A. El-Tantawy
Summary: This study investigates the propagation of electron-acoustic waves in an unmagnetized plasma, discussing both unmodulated and modulated structures such as solitary waves, rogue waves, and breathers. The Sagdeev potential approach and nonlinear Schrodinger equation are employed to study the characteristics of these waves, including their modulated solutions. Plasma parameters, particularly spectral indices r and q, are examined in detail to understand the behavior of electron acoustic waves in different distribution functions.
Article
Physics, Multidisciplinary
H. Nawaz, R. Jahangir, W. Masood, M. Siddiq
Summary: This study investigates the nonlinear propagation of electrostatic waves with cubic nonlinearity in a multicomponent dusty plasma. The amplitude of dust ion acoustic mKdV soliton is thoroughly examined based on data from Saturn's magnetosphere. Furthermore, the interaction between two mKdV solitons and the interaction of compressive and rarefactive dust ion acoustic solitons are explored.
Article
Mathematics, Interdisciplinary Applications
M. Yousaf Khattak, W. Masood, R. Jahangir, M. Siddiq, Haifa A. Alyousef, S. A. El-Tantawy
Summary: This study examines the propagation of nonlinear ion-acoustic waves in a magnetoplasma with superthermal inertialess electrons and inertial warm adiabatic ions. The Zakharov Kuznetsov (ZK) equation is derived to investigate the characteristics of ion-acoustic solitons in the small but finite amplitude limit. Using the Hirota bilinear method, single and two-solitons solutions of the two and three-dimensional ZK equations are obtained. The effects of superthermality, magnetic field, ion number density, and ion temperature on the profiles of single and two-solitons are explored based on the parameters of Van Allen radiation belts, and estimates of the spatial extent of soliton interaction in the outer radiation belts are provided.
CHAOS SOLITONS & FRACTALS
(2022)
Article
Physics, Fluids & Plasmas
R. Jahangir, S. Ali
Summary: The formation and propagation of nonlinear ion-acoustic waves in an unmagnetized cold viscous plasma were studied. The effects of plasma parameters and geometrical factors on the soliton and shock structures were investigated. The shape of the structures was found to be parabolic due to the interplay of transverse and time coordinates.
PLASMA PHYSICS AND CONTROLLED FUSION
(2022)
