Energy Partition at Collisionless Shocks in Plasmas With Super-Thermal Pickup Ion Populations

Vadim Roytershteyn; Michael Gedalin; Nikolai Pogorelov

Energy Partition at Collisionless Shocks in Plasmas With Super-Thermal Pickup Ion Populations

Vadim Roytershteyn, Michael Gedalin, Nikolai Pogorelov

Department of Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Collisionless shocks are ubiquitous in many space physics, astrophysics, and laboratory settings. One of the basic unsolved theoretical issues is quantitative prediction of the downstream plasma state for given upstream parameters. This problem becomes even more significant in situation where super-thermal population of ions are present upstream from the shock, as is the case for many shocks encountered in heliosphere, e.g. the termination shock. In this contribution, we discuss the problem, present overview of the previous investigations, and introduce recent advancements obtained with the aid of a semi-analytical theoretical model, which is compared against results of fully kinetic particle-in-cell simulations.

Original language	English
Title of host publication	APS Division of Plasma Physics Meeting 2019
Volume	2019
State	Published - 25 Oct 2021
Event	61st Annual Meeting of the APS Division of Plasma Physics - Fort Lauderdale, United States Duration: 21 Oct 2019 → 25 Oct 2019 https://meetings.aps.org/Meeting/DPP19/Content/3779

Conference

Conference	61st Annual Meeting of the APS Division of Plasma Physics
Country/Territory	United States
City	Fort Lauderdale
Period	21/10/19 → 25/10/19
Internet address	https://meetings.aps.org/Meeting/DPP19/Content/3779

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http://adsabs.harvard.edu/abs/2019APS..DPPYM9005R

Cite this

@inproceedings{d353dc91720c4724b9bb4389f6e97494,

title = "Energy Partition at Collisionless Shocks in Plasmas With Super-Thermal Pickup Ion Populations",

abstract = "Collisionless shocks are ubiquitous in many space physics, astrophysics, and laboratory settings. One of the basic unsolved theoretical issues is quantitative prediction of the downstream plasma state for given upstream parameters. This problem becomes even more significant in situation where super-thermal population of ions are present upstream from the shock, as is the case for many shocks encountered in heliosphere, e.g. the termination shock. In this contribution, we discuss the problem, present overview of the previous investigations, and introduce recent advancements obtained with the aid of a semi-analytical theoretical model, which is compared against results of fully kinetic particle-in-cell simulations.",

author = "Vadim Roytershteyn and Michael Gedalin and Nikolai Pogorelov",

year = "2021",

month = oct,

day = "25",

language = "English",

volume = "2019",

booktitle = "APS Division of Plasma Physics Meeting 2019",

note = "61st Annual Meeting of the APS Division of Plasma Physics ; Conference date: 21-10-2019 Through 25-10-2019",

url = "https://meetings.aps.org/Meeting/DPP19/Content/3779",

}

TY - GEN

T1 - Energy Partition at Collisionless Shocks in Plasmas With Super-Thermal Pickup Ion Populations

AU - Roytershteyn, Vadim

AU - Gedalin, Michael

AU - Pogorelov, Nikolai

PY - 2021/10/25

Y1 - 2021/10/25

N2 - Collisionless shocks are ubiquitous in many space physics, astrophysics, and laboratory settings. One of the basic unsolved theoretical issues is quantitative prediction of the downstream plasma state for given upstream parameters. This problem becomes even more significant in situation where super-thermal population of ions are present upstream from the shock, as is the case for many shocks encountered in heliosphere, e.g. the termination shock. In this contribution, we discuss the problem, present overview of the previous investigations, and introduce recent advancements obtained with the aid of a semi-analytical theoretical model, which is compared against results of fully kinetic particle-in-cell simulations.

AB - Collisionless shocks are ubiquitous in many space physics, astrophysics, and laboratory settings. One of the basic unsolved theoretical issues is quantitative prediction of the downstream plasma state for given upstream parameters. This problem becomes even more significant in situation where super-thermal population of ions are present upstream from the shock, as is the case for many shocks encountered in heliosphere, e.g. the termination shock. In this contribution, we discuss the problem, present overview of the previous investigations, and introduce recent advancements obtained with the aid of a semi-analytical theoretical model, which is compared against results of fully kinetic particle-in-cell simulations.

M3 - Conference contribution

VL - 2019

BT - APS Division of Plasma Physics Meeting 2019

T2 - 61st Annual Meeting of the APS Division of Plasma Physics

Y2 - 21 October 2019 through 25 October 2019

ER -

Energy Partition at Collisionless Shocks in Plasmas With Super-Thermal Pickup Ion Populations

Abstract

Conference

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