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16 papers · 1 filter

astro-ph.HE2021★ 38 cited

Relativistic Particle Transport and Acceleration in Structured Plasma Turbulence

Oreste Pezzi, Pasquale Blasi, William H. Matthaeus

We discuss the phenomenon of energization of relativistic charged particles in three-dimensional (3D) incompressible MHD turbulence and the diffusive properties of the motion of th…

physics.plasm-ph2021

Kinetic heating by Alfvén waves in magnetic shears

Fabio Bacchini, Francesco Pucci, Francesco Malara +1

With first-principles kinetic simulations, we show that a large-scale Alfvén wave (AW) propagating in an inhomogeneous background decays into kinetic Alfvén waves (KAWs), triggerin…

astro-ph.SR2021★ 32 cited

Exploring the Solar Wind from its Source on the Corona into the Inner Heliosphere during the First Solar Orbiter - Parker Solar Probe Quadrature

Daniele Telloni, Vincenzo Andretta, Ester Antonucci +68

This Letter addresses the first Solar Orbiter (SO) -- Parker Solar Probe (PSP) quadrature, occurring on January 18, 2021, to investigate the evolution of solar wind from the extend…

astro-ph.SR2021★ 39 cited

Turbulent cascade and energy transfer rate in a solar coronal mass ejection

Luca Sorriso-Valvo, Emiliya Yordanova, Andrew P. Dimmock +1

Turbulence properties are examined before, during and after a coronal mass ejection (CME) detected by the6Wind spacecraft on July 2012. The power-law scaling of the structure funct…

physics.ins-det2021★ 12 cited

Measurements of neutron fields in a wide energy range using multi-foil activation analysis

D. Chiesa, C. Cazzaniga, M. Nastasi +6

An accurate characterization of the neutron fields at spallation sources is crucial for many applications based on neutron irradiations, such as radiation damage tests that need a…

physics.plasm-ph2021★ 32 cited

Energy-selective confinement of fusion-born alpha particles during internal relaxations in a tokamak plasma

Andreas Bierwage, Kouji Shinohara, Yevgen Kazakov +9

Long-pulse operation of a self-sustained fusion reactor using toroidal magnetic containment requires control over the content of alpha particles produced by D-T fusion reactions. O…

physics.plasm-ph2021★ 26 cited

A possible link between turbulence and plasma heating

Emiliya Yordanova, Zoltán Vörös, Luca Sorriso-Valvo +2

Numerical simulations and experimental results have shown that current sheets formation in space plasmas can be associated with enhanced vorticity. Also, in simulations the generat…

physics.plasm-ph2021★ 3 cited

Nature of electrostatic fluctuations in the terrestrial magnetosheath

Silvia Perri, Denise Perrone, Owen Roberts +5

The high cadence plasma, electric, and magnetic field measurements by the Magnetospheric MultiScale spacecraft allow us to explore the near-Earth space plasma with an unprecedented…

physics.space-ph2021

Statistical study of electron density turbulence and ion-cyclotron waves in the inner heliosphere: Solar Orbiter observations

F. Carbone, L. Sorriso-Valvo, Yu. V. Khotyaintsev +27

The recently released spacecraft potential measured by the RPW instrument on-board Solar Orbiter has been used to estimate the solar wind electron density in the inner heliosphere.…

physics.plasm-ph2021★ 35 cited

CH reforming with CO in a nanosecond pulsed discharge. The importance of the pulse sequence

Cesare Montesano, Marzia Faedda, Luca Matteo Martini +2

The plasma dry reforming reaction of methane with carbon dioxide is investigated in a nanosecond repetitively pulsed discharge, a type of plasma that offers one of the highest non-…

physics.chem-ph2021★ 25 cited

Reconciling Experimental and Theoretical Vibrational Deactivation in Low-Energy O+N Collisions

Qizhen Hong, Massimiliano Bartolomei, Fabrizio Esposito +3

Molecular dynamics calculations of inelastic collisions of atomic oxygen with molecular nitrogen are known to show orders of magnitude discrepancies with experimental results in th…

physics.plasm-ph2021★ 43 cited

New plasma regimes with small ELMs and high confinement at the Joint European Torus

J. Garcia, E. de la Luna, M. Sertoli +15

New plasma regimes with high confinement, low core impurity accumulation and small Edge localized mode (ELMs) perturbations have been obtained close to ITER conditions in magnetica…

physics.chem-ph2021★ 17 cited

Thermal neutron cross sections of amino acids from average contributions of functional groups

G. Romanelli, D. Onorati, P. Ulpiani +10

The experimental thermal neutron cross sections of the twenty proteinogenic amino acids have been measured over the incident-neutron energy range spanning from 1 meV to 10 keV and…

astro-ph.SR2021

Current sheets, plasmoids and flux ropes in the heliosphere. Part II: Theoretical aspects

O. Pezzi, F. Pecora, J. le Roux +13

Our understanding of processes occurring in the heliosphere historically began with reduced dimensionality - one-dimensional (1D) and two-dimensional (2D) sketches and models, whic…

physics.plasm-ph2021★ 57 cited

Dissipation measures in weakly-collisional plasmas

O. Pezzi, H. Liang, J. L. Juno +8

The physical foundations of the dissipation of energy and the associated heating in weakly collisional plasmas are poorly understood. Here, we compare and contrast several measures…

physics.plasm-ph2021★ 18 cited

Bridging hybrid- and full-kinetic models with Landau-fluid electrons: I. 2D magnetic reconnection

Francesco Finelli, Silvio S. Cerri, Francesco Califano +4

Magnetic reconnection (MR) plays a fundamental role in plasma dynamics under many different conditions, from space and astrophysical environments to laboratory devices. High-resolu…