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Particle-in-Cell Simulations of Plasma Dynamics in Cometary Environment
KTH, School of Electrical Engineering and Computer Science (EECS), Computational Science and Technology (CST).
KTH, School of Electrical Engineering and Computer Science (EECS), Computational Science and Technology (CST).
KTH, School of Electrical Engineering and Computer Science (EECS), Computational Science and Technology (CST).
KTH, School of Electrical Engineering and Computer Science (EECS), Computational Science and Technology (CST).ORCID iD: 0000-0003-0639-0639
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2019 (English)In: Journal of Physics: Conference Series, Institute of Physics Publishing (IOPP), 2019, Vol. 1225, no 1, article id 012009Conference paper, Published paper (Refereed)
Abstract [en]

We perform and analyze global Particle-in-Cell (PIC) simulations of the interaction between solar wind and an outgassing comet with the goal of studying the plasma kinetic dynamics of a cometary environment. To achieve this, we design and implement a new numerical method in the iPIC3D code to model outgassing from the comet: new plasma particles are ejected from the comet "surface" at each computational cycle. Our simulations show that a bow shock is formed as a result of the interaction between solar wind and outgassed particles. The analysis of distribution functions for the PIC simulations shows that at the bow shock part of the incoming solar wind, ions are reflected while electrons are heated. This work attempts to reveal kinetic effects in the atmosphere of an outgassing comet using a fully kinetic Particle-in-Cell model.

Place, publisher, year, edition, pages
Institute of Physics Publishing (IOPP), 2019. Vol. 1225, no 1, article id 012009
Series
Journal of Physics: Conference Series, ISSN 17426588 ; 1225
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-262635DOI: 10.1088/1742-6596/1225/1/012009ISI: 000478669600009Scopus ID: 2-s2.0-85068062214OAI: oai:DiVA.org:kth-262635DiVA, id: diva2:1362147
Conference
13th International Conference on Numerical Modeling of Space Plasma Flows, ASTRONUM 2018; Panama City Beach; United States; 25 June 2018 through 29 June 2018
Note

QC 20191018

Available from: 2019-10-18 Created: 2019-10-18 Last updated: 2019-11-07Bibliographically approved

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Sishtla, Chaitanya PrasadOlshevsky, ViacheslavMarkidis, StefanoLaure, Erwin

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Sishtla, Chaitanya PrasadOlshevsky, ViacheslavChien, Wei DerMarkidis, StefanoLaure, Erwin
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