Structure of a collisionless pair jet in a magnetizedelectron-proton plasma: Flow-aligned magnetic field
| العنوان: | Structure of a collisionless pair jet in a magnetizedelectron-proton plasma: Flow-aligned magnetic field |
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| المؤلفون: | Pierangelo Dell'Acqua, Aida Nordman, Martin Falk, Rolf Walder, Mark E Dieckmann, Peter Steneteg, Anders Ynnerman, Doris Folini, Ingrid Hotz |
| المساهمون: | Centre de Recherche Astrophysique de Lyon (CRAL), École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL) |
| المصدر: | PoS 7th High Energy Phenomena in Relativistic Outflows 7th High Energy Phenomena in Relativistic Outflows, Jul 2019, Barcelona, Spain. pp.006, ⟨10.22323/1.354.0006⟩ |
| بيانات النشر: | HAL CCSD, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Electromagnetic field, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Jet (fluid), Shock (fluid dynamics), Proton, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Plasma, Instability, law.invention, Computational physics, Magnetic field, Piston, law, Physics::Plasma Physics, Physics::Space Physics, Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics::Galaxy Astrophysics |
| الوصف: | We present the results from a particle-in-cell (PIC) simulation that models the interaction between a spatially localized electron-positron cloud and an electron-ion plasma. The latter is permeated by a magnetic field that is initially spatially uniform and aligned with the mean velocity vector of the pair cloud. The pair cloud expels the magnetic field and piles it up into an electromagnetic piston. Its electromagnetic field is strong enough to separate the pair cloud from the ambient plasma in the direction that is perpendicular to the cloud propagation direction. The piston propagates away from the spine of the injected pair cloud and it accelerates the protons to a high nonrelativistic speed. The accelerated protons form an outer cocoon that will eventually become separated from the unperturbed ambient plasma by a fast magnetosonic shock. No electromagnetic piston forms at the front of the cloud and a shock is mediated here by the filamentation instability. The final plasma distribution resembles that of a hydrodynamic jet. Collisionless plasma jets may form in the coronal plasma of accreting black holes and the interaction between the strong magnetic field of the piston and the hot pair cloud may contribute to radio emissions by such objects. Comment: Accepted for publication by the Proceedings of Science. 10 pages, 4 figures |
| اللغة: | English |
| DOI: | 10.22323/1.354.0006⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de4db53440469a130c45d168a0f2cc4a https://hal.archives-ouvertes.fr/hal-02483893 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....de4db53440469a130c45d168a0f2cc4a |
| قاعدة البيانات: | OpenAIRE |
| DOI: | 10.22323/1.354.0006⟩ |
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