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The nonlinear propagation of the dust-acoustic bright and dark envelope solitons in an opposite polarity dusty plasma system (composed of non-extensive $q$-distributed electrons, isothermal ions, and positively as well as negatively charged…

Plasma Physics · Physics 2019-03-27 S. Jahan , N. A. Chowdhury , A. Mannan , A. A. Mamun

Particles suspended in a fluid exert feedback forces that can significantly impact the flow, altering the turbulent drag and velocity fluctuations. We study flow modulation induced by particles heavier than the carrier fluid in the…

Fluid Dynamics · Physics 2021-04-13 A. Sozza , M. Cencini , S. Musacchio , G. Boffetta

A versatile linear dusty (complex) plasma device is designed to study the transport and dynamical behavior of dust particles in a large volume. Diffused inductively coupled plasma is generated in the background of argon gas. A novel…

Plasma Physics · Physics 2016-05-25 Mangilal Choudhary , S. Mukherjee , P. Bandyopadhyay

Complex plasmas are interesting systems as the charged dust can self-assemble into different types of ordered structures. To understand the mechanisms which govern the transitions from one type of structure to another, it is necessary to…

The propagation characteristics of small-amplitude dust-acoustic (DA) solitary waves (SWs) and shocks are studied in an unmagnetized dusty plasma with a pair of trapped positive and negative ions. Using the standard reductive perturbation…

Plasma Physics · Physics 2017-07-04 N. C. Adhikary , A. P. Misra , M. K. Deka , A. N. Dev

We report the highest spatial resolution measurement of magnetic fields in M17 using thermal dust polarization taken by SOFIA/HAWC+ centered at 154 $\mu$m wavelength. Using the Davis-Chandrasekhar-Fermi method, we found the presence of…

We report an experimental observation of multiple co--rotating vortices in a extended dust column in the background of non--uniform diffused plasma. Inductively coupled RF discharge is initiated in the background of argon gas in the source…

Plasma Physics · Physics 2017-04-05 Mangilal Choudhary , S. Mukherjee , P. Bandyopadhyay

Effects of vacuum polarization modify the energy levels in atoms with an orbiting particle heavier than an electron. The dominant effect is due to the Uehling potential. In this paper we consider the relativistic corrections to the energy…

Atomic Physics · Physics 2015-06-26 E. Yu. Korzinin , V. G. Ivanov , S. G. Karshenboim

To exclude collisions leading to the overlap of finite-sized charged particles in molecular dynamics (MD) simulations in systems like complex (dusty) plasmas, we developed a scheme to generate a pair interaction force functionally depending…

Plasma Physics · Physics 2025-01-28 N. Kh. Bastykova , N. E. Djienbekov , T. S. Ramazanov , S. K. Kodanova

Dusty plasma medium turns out to be an ideal system for studying the strongly coupled behavior of matter. The large size and slow response make their dynamics suitable to be captured through simple diagnostic tools. Furthermore, as the…

Plasma Physics · Physics 2024-08-30 Aman Singh Katariya , Amita Das , Animesh Sharma , Bibhuti Bhushan Sahu

Employing an attenuated oscillation method, the anisotropic interaction force between two vertically aligned dust particles located in the sheath of a complex plasma was measured experimentally based on a linear approximation to the…

Plasma Physics · Physics 2015-05-13 Jie Kong , Truell W. Hyde , Brandon Harris , Ke Qiao , Jorge Carmona Reyes

It is well--known that when magnetic monopoles are introduced in plasma equations the propagation of electromagnetic waves is modified. This occurs because of Maxwell equations acquire a symmetrical structure due to the existence of…

Plasma Physics · Physics 2019-09-04 Felipe A. Asenjo , Pablo S. Moya

It is shown that nonlinear interaction between large amplitude circularly polarized EM wave and dusty plasma leads to a nonstationary ponderomotive force which in turn produces a vortex ring, and magnetic field. Then the ensuing vortex ring…

Plasma Physics · Physics 2009-11-12 Zahida Ehsan , N. L. Tsintsadze , J. Vranjes , M. Coppins , R. Khan , S. Poedts , J. E. Allen

Theoretical and numerical studies are presented of the nonlinear amplitude modulation of dust-acoustic (DA) waves propagating in an unmagnetized three component, weakly-coupled, fully ionized plasma consisting of electrons, positive ions…

Plasma Physics · Physics 2009-11-10 I. Kourakis , P. K. Shukla

The energy loss of a relativistic charge undergoing multiple scatterings while traversing an infinite, polarizable and absorptive plasma is investigated. Polarization and damping mechanisms in the medium are phenomenologically modelled by a…

High Energy Physics - Phenomenology · Physics 2012-09-18 Marcus Bluhm , Pol Bernard Gossiaux , Joerg Aichelin

The structure of a discharge across a magnetic field in a dusty plasma is analysed. The dust macroparticles are negatively charged, but are unmagnetized because of their high mass. The electrons are highly magnetized, and the ions have…

Plasma Physics · Physics 2007-05-23 Neil F. Cramer , Sergey Vladimirov

We study the dynamics of large, charged dust grains in turbulent giant molecular clouds (GMCs). Massive dust grains behave as aerodynamic particles in primarily neutral dense gas, and thus are able to produce dramatic small-scale…

Astrophysics of Galaxies · Physics 2017-07-11 Hyunseok Lee , Philip F. Hopkins , Jonathan Squire

We study the effects of the velocity distribution functions of the plasma particles on the equilibrium charge of dust grains, acquired through inelastic collisions of the particles with the grains. This paper is the second in a series of…

Plasma Physics · Physics 2025-09-25 Rudi Gaelzer , Luiz Fernando Ziebell

The effect of electrostatic strong-coupling of dust particles along with their self-gravitational force has been analyzed in a three component dusty plasma. The electrons and ions forming the charge neutral background where the electron…

Plasma Physics · Physics 2024-11-14 Shatadru Chaudhuri , Shahin Nasrin , Asesh Roy Chowdhury

Nonlinear self-modulation of the dust acoustic waves is studied, in the presence of non-thermal (non-Maxwellian) ion and electron populations. By employing a multiple scale technique, a nonlinear Schrodinger-type equation (NLSE) is derived…

Plasma Physics · Physics 2015-06-26 Ioannis Kourakis , P. K. Shukla