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We report the first observation of the Mach cones excited by a larger microparticle (projectile) moving through a cloud of smaller microparticles (dust) in a complex plasma with neon as a buffer gas under microgravity conditions. A…

Structure of Mach cones in a crystalline complex plasma has been studied experimentally using an intensity sensitive imaging, which resolved particle motion in three dimensions. This revealed a previously unknown out-of-plane cone…

Plasma Physics · Physics 2015-06-11 L. Couedel , D. Samsonov , C. Durniak , S. Zhdanov , H. M. Thomas , G. E. Morfill , C. Arnas

We theoretically investigate the interaction and propagation characteristics of two co/counter propagating Mach cones triggered by two projectile particles moving with supersonic velocities in the same/opposite directions through a dusty…

Plasma Physics · Physics 2017-04-05 P. Bandyopadhyay , R. Dey , A. Sen

Experimental results on the dislocation dynamics in a two-dimensional plasma crystal are presented. Edge dislocations were created in pairs in lattice locations where the internal shear stress exceeded a threshold and then moved apart in…

Soft Condensed Matter · Physics 2009-11-13 V. Nosenko , S. Zhdanov , G. Morfill

The penetration of a supersonic particle at the interface was studied in a binary complex plasma. Inspired by the experiments performed in the PK-3 Plus Laboratory on board the International Space Station, Langevin dynamics simulations were…

Plasma Physics · Physics 2021-01-13 He Huang , Mierk Schwabe , Hubertus M Thomas , Andrey M Lipaev , Cheng-Ran Du

We study the propagation of sound-like perturbations created by a jet moving with supersonic velocity through the quark-gluon-plasma created in heavy-ion reactions within the model MACE (MAch Cone Evolution). Predictions for heavy-ion…

Nuclear Theory · Physics 2007-10-09 Bjoern Baeuchle , Laszlo Csernai , Horst Stoecker

When two galaxy clusters encounter each other, the interaction results in a collisionless shock that is characterized by a low (1-4) sonic Mach number, and a high Alfv{\'e}nic Mach number. Our goal is to determine if, and to what extent,…

High Energy Astrophysical Phenomena · Physics 2020-06-24 Allard Jan van Marle

We derive the space-time distribution of energy and momentum deposited by a fast parton traversing a weakly coupled quark-gluon plasma by treating the fast part on as the source of an external color field perturbing the medium. We then use…

High Energy Physics - Phenomenology · Physics 2008-11-26 R. B. Neufeld , B. Müller , J. Ruppert

The interaction of supersonic laser-generated plasma jets with a secondary gas target was studied experimentally. The plasma parameters of the jet, and the resulting shock, were characterized using a combination of multi-frame…

Two-dimensional plasma crystals are characterized by a strong up-and-down asymmetry not only due to gravity but also due to the presence of plasma flow at the location of particles. We study for the first time the interaction of a…

Plasma Physics · Physics 2012-09-17 C. -R. Du , V. Nosenko , S. Zhdanov , H. M. Thomas , G. E. Morfill

Measurements of angular correlations of hadrons with a (semi-)hard trigger hadron in heavy-ion collisions at RHIC show large angular structures opposite to the trigger which were a priori unexpected. These away side large angle correlations…

High Energy Physics - Phenomenology · Physics 2008-11-26 Thorsten Renk , Jorg Ruppert

We describe a laboratory plasma physics experiment at Los Alamos National Laboratory that uses two merging supersonic plasma jets formed and launched by pulsed-power-driven rail guns. The jets can be formed using any atomic species or…

When supersonic plasma flows collide, many physical processes contribute to the morphology of the resulting shock. One of these processes is the acceleration of non-thermal ions, which will, eventually, reach relativistic speeds and become…

High Energy Astrophysical Phenomena · Physics 2025-09-16 Allard Jan van Marle

We report the modifications of compressional Mach cone propagation characteristics due to \textcolor{black}{the} polarization force acting on micron size dust particles embedded in a non-uniform plasma. We solve the hydrodynamic fluid…

Plasma Physics · Physics 2016-04-18 P. Bandyopadhyay , K. Jiang , R. Dey , G. E. Morfill

Shock-driven turbulence is central to astrophysical plasmas in which explosions and compressive driving inject energy through shocks rather than steady stirring. We present three-dimensional, three-temperature (ion, electron, and radiation;…

Plasma Physics · Physics 2026-05-22 Stefano Merlini , James R. Beattie , Vicente Valenzuela-Villaseca

We report on the first detailed analysis of large three dimensional (3D) complex plasma structures in experiments performed in pure rf and combined rf+dc discharge modes. Inductively coupled plasma (ICP) is generated by an rf coil wrapped…

Plasma Physics · Physics 2013-04-04 S. Mitic , B. A. Klumov , S. A. Khrapak , G. E. Morfill

A long life-time (>0.3 ms) strongly-coupled molecular Rydberg plasma is generated by the excitation of nitric oxide into the high-n Rydberg threshold region in the high-density region of a supersonic jet expansion. After 310 \mus the plasma…

Quantum Gases · Physics 2010-04-06 Jingwei Guo , Mervash Varnasseri , Mikko Riese , Klaus Muller-Dethlefs

An interaction of upstream extra particles with a monolayer highly-ordered complex plasma is studied. A principally new abnormal turbulent wake formed behind the supersonic upstream particle is discovered. An anomalous type of the…

Plasma Physics · Physics 2016-07-04 S. Zhdanov , C. -R. Du , M. Schwabe , V. Nosenko , H. M. Thomas , G. E. Morfill

The first laboratory astrophysics experiments to produce a radiatively cooled plasma jet with dynamically significant angular momentum are discussed. A new configuration of wire array z-pinch, the twisted conical wire array, is used to…

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