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An algorithm has been developped, which makes it possible to automatically extract trajectories of a large number of particles from fast imaging data, allowing a statistical analysis of particles trajectories under various plasma…

Plasma Physics · Physics 2015-05-19 S. Bardin , J-L. Briançon , F. Brochard , V. Martin , Y. Zayachuk , R. Hugon , J. Bougdira

We study the effect of the velocity distributions of the plasma particles on the equilibrium charge of dust particles which suffer collisional charging, considering different forms of both isotropic and anisotropic Kappa distributions for…

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

We present a novel scheme for rapid quantitative analysis of debris generated during experiments with solid targets following relativistic laser-plasma interaction at high-power laser facilities. Experimental data indicates that predictions…

The pairwise collisional growth of dust aggregates consisting submicron-sized grains is the first step of the planet formation, and understanding the collisional behavior of dust aggregates is therefore essential. It is known that the main…

Earth and Planetary Astrophysics · Physics 2022-11-16 Sota Arakawa , Hidekazu Tanaka , Eiichiro Kokubo

In this paper, we present results from a multi-stage numerical campaign to begin to explain and determine why extreme debris disk detections are rare, what types of impacts will result in extreme debris disks and what we can learn about the…

Earth and Planetary Astrophysics · Physics 2022-12-09 Lewis Watt , Zoë Leinhardt , Kate Su

In this work linear stability analysis of a four-fluid optically thin plasma consisting of electrons, ions, neutral atoms, and charged dust particles is performed with respect to the radiation-condensation (RC) instability. The energy…

Plasma Physics · Physics 2009-11-13 A. Kopp , Yu. A. Shchekinov

The effects of neutron irradiation on materials are often interpreted in terms of atomic recoils, initiated by neutron impacts and producing crystal lattice defects. In addition, there is a remarkable two-step process, strongly pronounced…

Materials Science · Physics 2023-06-19 Luca Reali , Mark R. Gilbert , Max Boleininger , Sergei L. Dudarev

During planet formation, numerous small impacting bodies result in cratering impacts on large target bodies. A fraction of the target surface is eroded, while a fraction of the impactor material accretes onto the surface. These fractions…

Earth and Planetary Astrophysics · Physics 2021-06-02 Ryuki Hyodo , Hidenori Genda

Drop impact causes severe surface erosion, dictating many important natural, environmental and engineering processes and calling for substantial prevention and preservation efforts. Nevertheless, despite extensive studies on the kinematic…

Small (sub)-micron dust is present over the entire lifetime of protoplanetary disks. As aggregation readily depletes small particles, one explanation might be that dust is continuously generated by larger bodies in the midplane and…

Earth and Planetary Astrophysics · Physics 2011-11-07 Thorben Kelling , Gerhard Wurm

The disruption and runaway electron analysis model code was extended to include tungsten impurities in disruption simulations with the aim of studying the runaway electron (RE) generation. This study investigates RE current sensitivity on…

The formation of planetesimals in protoplanetary disks due to collisional sticking of smaller dust aggregates has to face at least two severe obstacles, namely the rapid loss of material due to radial inward drift and particle fragmentation…

Astrophysics · Physics 2009-11-13 F. Brauer , Th. Henning , C. P. Dullemond

Elastic knock-on is the main electron irradiation damage mechanism in metals including graphene. Atomic vibrations influence its cross-section, but only the out-of-plane direction has been considered so far in the literature. Here, we…

We discuss inelastic collisions of two rotating disks by using the conservation laws for baryonic mass and angular momentum. In particular, we formulate conditions for the formation of a new disk after the collision and calculate the total…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Jörg Hennig , Gernot Neugebauer

The deformation of rocks is associated with microcracks nucleation and propagation, i.e. damage. The accumulation of damage and its spatial localization lead to the creation of a macroscale discontinuity, so-called "fault" in geological…

Geophysics · Physics 2007-09-19 David Amitrano

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 reflection of intense laser radiation from solids appears as a result of relativistic dynamics of the electrons driven by both incoming and self-generated electromagnetic fields at the periphery of the emerging dense plasma. In the case…

Plasma Physics · Physics 2019-05-22 B. Svedung Wettervik , M. Marklund , A. Gonoskov

Particle-particle and particle-wall collisions occur in many natural and industrial applications such as sedimentation, agglomeration, and granular flows. To accurately predict the behavior of particulate flows, fundamental knowledge of the…

Fluid Dynamics · Physics 2008-09-23 A. M. Ardekani , R. H. Rangel

In this work, we have considered the formation of warm plasma sheath in the vicinity of a wall in a plasma with considerable presence of dust particles. As an example, we have used the parameters relevant in case of lunar plasma sheath,…

Plasma Physics · Physics 2016-05-04 G. C. Das , R. Deka , M. P. Bora

Low frequency electromagnetic turbulence is generated in relativistically outflowing plasma that sweeps up particles from the surrounding environment. Electrons are energized by stochastic gyroresonant acceleration with the turbulence…

Astrophysics · Physics 2007-05-23 R. Schlickeiser , C. D. Dermer