Results 11 to 20 of about 345,959 (285)

An Introduction to Particle Acceleration in Shearing Flows

Galaxies, 2019
Shear flows are ubiquitously present in space and astrophysical plasmas. This paper highlights the central idea of the non-thermal acceleration of charged particles in shearing flows and reviews some of the recent developments.
Frank M. Rieger
doaj   +3 more sources

Polarized blazar X-rays imply particle acceleration in shocks. [PDF]

Nature, 2022
Liodakis I, Marscher AP, Agudo I, Berdyugin AV, Bernardos MI, Bonnoli G, Borman GA, Casadio C, Casanova VC, Cavazzuti E, Rodriguez Cavero N, Di Gesu L, Di Lalla N, Donnarumma I, Ehlert SR, Errando M, Escudero J, Garcı A-Comas M, Agı S-González B, Husillos C, Jormanainen J, Jorstad SG, Kagitani M, Kopatskaya EN, Kravtsov V, Krawczynski H, Lindfors E, Larionova EG, Madejski GM, Marin F, Marchini A, Marshall HL, Morozova DA, Massaro F, Masiero JR, Mawet D, Middei R, Millar-Blanchaer MA, Myserlis I, Negro M, Nilsson K, O'Dell SL, Omodei N, Pacciani L, Paggi A, Panopoulou GV, Peirson AL, Perri M, Petrucci PO, Poutanen J, Puccetti S, Romani RW, Sakanoi T, Savchenko SS, Sota A, Tavecchio F, Tinyanont S, Vasilyev AA, Weaver ZR, Zhovtan AV, Antonelli LA, Bachetti M, Baldini L, Baumgartner WH, Bellazzini R, Bianchi S, Bongiorno SD, Bonino R, Brez A, Bucciantini N, Capitanio F, Castellano S, Ciprini S, Costa E, De Rosa A, Del Monte E, Di Marco A, Doroshenko V, Dovčiak M, Enoto T, Evangelista Y, Fabiani S, Ferrazzoli R, Garcia JA, Gunji S, Hayashida K, Heyl J, Iwakiri W, Karas V, Kitaguchi T, Kolodziejczak JJ, La Monaca F, Latronico L, Maldera S, Manfreda A, Marinucci A, Matt G, Mitsuishi I, Mizuno T, Muleri F, Ng SC, Oppedisano C, Papitto A, Pavlov GG, Pesce-Rollins M, Pilia M, Possenti A, Ramsey BD, Rankin J, Ratheesh A, Sgró C, Slane P, Soffitta P, Spandre G, Tamagawa T, Taverna R, Tawara Y, Tennant AF, Thomas NE, Tombesi F, Trois A, Tsygankov S, Turolla R, Vink J, Weisskopf MC, Wu K, Xie F, Zane S.   +127 more
europepmc   +2 more sources

Proton acceleration in analytic reconnecting current sheets [PDF]

, 2002
Particle acceleration provides an important signature for the magnetic collapse that accompanies a solar flare. Most particle acceleration studies, however, invoke magnetic and electric field models that are analytically convenient rather than solutions ...
Alekseyev I. I., Bruthwiler D. L., Bulanov S. V., Bulanov S. V., Chen J., I. J. D. Craig, J. Heerikhuisen, Klein K. L., Litvinenko Y. E., Ryan J. M., Speiser T. W., Yuri E. Litvinenko, Zhu Z.   +12 more
core   +2 more sources

Particle Acceleration Mechanisms [PDF]

International Astronomical Union Colloquium, 1994
AbstractHigh-energy particle acceleration is observed to proceed in a diverse variety of astrophysical sites ranging from the terrestrial aurorae to the most distant quasars. Particle acceleration is a fairly common channel for the release of large-scale kinetic, rotational, and magnetic energy.
openaire   +3 more sources

Particle Acceleration Mechanisms

Space Science Reviews, 2008
We review the possible mechanisms for production of non-thermal electrons which are responsible for non-thermal radiation in clusters of galaxies. Our primary focus is on non-thermal Bremsstrahlung and inverse Compton scattering, that produce hard X-ray emission.
Petrosian, V., Bykov, A.
openaire   +2 more sources

Effect of dust on tilted electrostatic resistive instability in a Hall thruster

Journal of Theoretical and Applied Physics, 2018
Effect of negatively charged dust on resistive instability corresponding to the electrostatic wave is investigated in a Hall thruster plasma when this purely azimuthal wave is tilted and strong axial component of wave vector is developed.
Jasvendra Tyagi, Sukhmander Singh, Hitendra K. Malik   +2 more
doaj   +1 more source

Particle Acceleration and Their Escape into the Heliosphere in Solar Flares with Open Magnetic Field

The Astrophysical Journal, 2023
Energetic particle populations in the solar corona and in the heliosphere appear to have different characteristics even when produced in the same solar flare.
Mykola Gordovskyy, Philippa K. Browning, Kanya Kusano, Satoshi Inoue, Grigory E. Vekstein   +4 more
doaj   +1 more source

Small amplitude dust acoustic solitary wave in magnetized two ion temperature plasma

Journal of Taibah University for Science, 2020
The characteristics of obliquely propagating dust acoustic solitary wave in magnetized dusty plasma are analysed by considering the plasma to have electrons, two-temperature ions and massive dust grains with heavy charge.
Hitendra K. Malik, Rashmi Srivastava, Sandeep Kumar, Devi Singh   +3 more
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Particle acceleration by twisted laser beams

Frontiers in Physics, 2022
We consider particle acceleration in plasmas, using twisted laser beams, or beams with orbital angular momentum. We discuss different acceleration processes using two LG laser modes, which include donut wakefield, beat-wave and self-torque acceleration ...
J.T. Mendonça, J. Vieira, C. Willim, R. Fedele   +3 more
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Mathematical modelling of seed-mediated size-specific growth of spherical silver nanoparticles using Azadirachta indica leaf extract

Journal of Taibah University for Science, 2020
Spherical silver nanoparticles of required size were synthesized employing a seed-mediated approach using leaf extract of Azadirachta indica. Reaction pH was used to manipulate the rate of reduction of the precursor salt for achieving a fast rate of ...
Ashu Jain, Anushree Malik, Hitendra Kumar Malik   +2 more
doaj   +1 more source