Quasi-Parallel Shock Reformation Seen by Magnetospheric Multiscale and Ion-Kinetic Simulations

Erik Andreas Johlander; Markus Battarbee; Lucile Turc; Urs Ganse; Yann Pfau-Kempf; Maxime Grandin; Jonas Emil Suni; Vertti Aleksanteri Tarvus; Maarja Bussov; Hongyang Zhou; Markku Juhani Alho; Maxime Dubart; Harriet Elizabeth George; Konstantinos Papadakis; Minna Palmroth

doi:10.1029/2021GL096335

Quasi-Parallel Shock Reformation Seen by Magnetospheric Multiscale and Ion-Kinetic Simulations

Erik Andreas Johlander, Markus Battarbee, Lucile Turc, Urs Ganse, Yann Pfau-Kempf, Maxime Grandin, Jonas Emil Suni, Vertti Aleksanteri Tarvus, Maarja Bussov, Hongyang Zhou, Markku Juhani Alho, Maxime Dubart, Harriet Elizabeth George, Konstantinos Papadakis, Minna Palmroth

Research output: Contribution to journal › Article › Scientific › peer-review

Abstract

Shock waves in collisionless plasmas are among the most efficient particle accelerators in space. Shock reformation is a process important to plasma heating and acceleration, but direct observations of reformation at quasi-parallel shocks have been lacking. Here, we investigate Earth's quasi-parallel bow shock with observations by the four Magnetospheric Multiscale spacecraft. The multi-spacecraft observations provide evidence of short large-amplitude magnetic structures (SLAMS) causing reformation of the quasi-parallel shock. We perform an ion-kinetic Vlasiator simulation of the bow shock and show that SLAMS reforming the bow shock recreates the multi-spacecraft measurements. This provides a method for identifying shock reformation in the future.

Original language	English
Article number	e2021GL096335
Journal	Geophysical Research Letters
Volume	49
Issue number	2
Number of pages	7
ISSN	0094-8276
DOIs	https://doi.org/10.1029/2021GL096335
Publication status	Published - 28 Jan 2022
MoE publication type	A1 Journal article-refereed

Fields of Science

115 Astronomy, Space science
collisionless shock
quasi-parallel
shock reformation
satellite measurements
plasma simulation
AMPLITUDE MAGNETIC-STRUCTURES
CYCLIC BEHAVIOR
BOW SHOCK
FIELD
ACCELERATION
FORESHOCK

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10.1029/2021GL096335Licence: CC BY

Geophysical Research Letters - 2022 - Johlander - Quasi%u2010Parallel Shock Reformation Seen by Magnetospheric Multiscale andFinal published version, 1.76 MBLicence: CC BY

1 Finished
1 Active

Finnish Centre of Excellence in Research of Sustainable Space
Palmroth, M., Kilpua, E., Osmane, A., Turc, L., Pomoell, J. A. V., Ganse, U., Battarbee, M., Pfau-Kempf, Y., Koskela, T., Vasconcelos Brito, T., Grandin, M., Dubart, M., Ala-Lahti, M., George, H. E., Good, S., Price, D., Kalliokoski, M., Morosan, D., Lumme, E., Palmerio, E., Partio, H., Suni, J. E., Asvestari, E., Johlander, E. A., Sishtla, C. P., Papadakis, K., Alho, M. J., Tarvus, V. A., Hoilijoki, S., Bussov, M., Kumari, A., Daei, F., Zhou, H., Sarkar, R., Pal, S., Manglayev, T., Horaites, K., Savola, M. E., Wagner, A., Zaitsev, I., Soljento, J. & Cozzani, G.
01/01/2018 → 31/12/2025
Project: Research project
Plasma Reconnection, Shocks and Turbulence in Solar System Interactions: Modelling and Observations
Ganse, U., Pfau-Kempf, Y., Battarbee, M., Turc, L., Bussov, M., Manglayev, T., Johlander, E. A., George, H. E., Dubart, M., Grandin, M., Horaites, K., Papadakis, K., Tarvus, V. A., Alho, M. J., Suni, J. E., Zaitsev, I., Cozzani, G. & Palmroth, M.
European Commission / Horizon 2020, European Commission
01/01/2017 → 31/05/2022
Project: Research project

Cite this

Johlander, E. A., Battarbee, M., Turc, L., Ganse, U., Pfau-Kempf, Y., Grandin, M., Suni, J. E., Tarvus, V. A., Bussov, M., Zhou, H., Alho, M. J., Dubart, M., George, H. E., Papadakis, K., & Palmroth, M. (2022). Quasi-Parallel Shock Reformation Seen by Magnetospheric Multiscale and Ion-Kinetic Simulations. Geophysical Research Letters, 49(2), [e2021GL096335]. https://doi.org/10.1029/2021GL096335

Johlander, Erik Andreas ; Battarbee, Markus ; Turc, Lucile ; Ganse, Urs ; Pfau-Kempf, Yann ; Grandin, Maxime ; Suni, Jonas Emil ; Tarvus, Vertti Aleksanteri ; Bussov, Maarja ; Zhou, Hongyang ; Alho, Markku Juhani ; Dubart, Maxime ; George, Harriet Elizabeth ; Papadakis, Konstantinos ; Palmroth, Minna. / Quasi-Parallel Shock Reformation Seen by Magnetospheric Multiscale and Ion-Kinetic Simulations. In: Geophysical Research Letters. 2022 ; Vol. 49, No. 2.

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title = "Quasi-Parallel Shock Reformation Seen by Magnetospheric Multiscale and Ion-Kinetic Simulations",

abstract = "Shock waves in collisionless plasmas are among the most efficient particle accelerators in space. Shock reformation is a process important to plasma heating and acceleration, but direct observations of reformation at quasi-parallel shocks have been lacking. Here, we investigate Earth's quasi-parallel bow shock with observations by the four Magnetospheric Multiscale spacecraft. The multi-spacecraft observations provide evidence of short large-amplitude magnetic structures (SLAMS) causing reformation of the quasi-parallel shock. We perform an ion-kinetic Vlasiator simulation of the bow shock and show that SLAMS reforming the bow shock recreates the multi-spacecraft measurements. This provides a method for identifying shock reformation in the future.",

keywords = "115 Astronomy, Space science, collisioless shock, QUASI-PARALLEL, shock reformation, SATELLITE MEASUREMENTS, Plasma simulations, collisionless shock, quasi-parallel, shock reformation, satellite measurements, plasma simulation, AMPLITUDE MAGNETIC-STRUCTURES, CYCLIC BEHAVIOR, BOW SHOCK, FIELD, ACCELERATION, FORESHOCK",

author = "Johlander, {Erik Andreas} and Markus Battarbee and Lucile Turc and Urs Ganse and Yann Pfau-Kempf and Maxime Grandin and Suni, {Jonas Emil} and Tarvus, {Vertti Aleksanteri} and Maarja Bussov and Hongyang Zhou and Alho, {Markku Juhani} and Maxime Dubart and George, {Harriet Elizabeth} and Konstantinos Papadakis and Minna Palmroth",

year = "2022",

month = jan,

day = "28",

doi = "10.1029/2021GL096335",

language = "English",

volume = "49",

journal = "Geophysical Research Letters",

issn = "0094-8276",

publisher = "American Geophysical Union",

number = "2",

}

Johlander, EA, Battarbee, M , Turc, L , Ganse, U , Pfau-Kempf, Y , Grandin, M , Suni, JE , Tarvus, VA , Bussov, M , Zhou, H , Alho, MJ , Dubart, M , George, HE , Papadakis, K & Palmroth, M 2022, 'Quasi-Parallel Shock Reformation Seen by Magnetospheric Multiscale and Ion-Kinetic Simulations', Geophysical Research Letters, vol. 49, no. 2, e2021GL096335. https://doi.org/10.1029/2021GL096335

Quasi-Parallel Shock Reformation Seen by Magnetospheric Multiscale and Ion-Kinetic Simulations. / Johlander, Erik Andreas; Battarbee, Markus ; Turc, Lucile ; Ganse, Urs ; Pfau-Kempf, Yann ; Grandin, Maxime ; Suni, Jonas Emil ; Tarvus, Vertti Aleksanteri ; Bussov, Maarja ; Zhou, Hongyang ; Alho, Markku Juhani ; Dubart, Maxime ; George, Harriet Elizabeth ; Papadakis, Konstantinos ; Palmroth, Minna.

In: Geophysical Research Letters, Vol. 49, No. 2, e2021GL096335, 28.01.2022.

Research output: Contribution to journal › Article › Scientific › peer-review

TY - JOUR

T1 - Quasi-Parallel Shock Reformation Seen by Magnetospheric Multiscale and Ion-Kinetic Simulations

AU - Johlander, Erik Andreas

AU - Battarbee, Markus

AU - Turc, Lucile

AU - Ganse, Urs

AU - Pfau-Kempf, Yann

AU - Grandin, Maxime

AU - Suni, Jonas Emil

AU - Tarvus, Vertti Aleksanteri

AU - Bussov, Maarja

AU - Zhou, Hongyang

AU - Alho, Markku Juhani

AU - Dubart, Maxime

AU - George, Harriet Elizabeth

AU - Papadakis, Konstantinos

AU - Palmroth, Minna

PY - 2022/1/28

Y1 - 2022/1/28

N2 - Shock waves in collisionless plasmas are among the most efficient particle accelerators in space. Shock reformation is a process important to plasma heating and acceleration, but direct observations of reformation at quasi-parallel shocks have been lacking. Here, we investigate Earth's quasi-parallel bow shock with observations by the four Magnetospheric Multiscale spacecraft. The multi-spacecraft observations provide evidence of short large-amplitude magnetic structures (SLAMS) causing reformation of the quasi-parallel shock. We perform an ion-kinetic Vlasiator simulation of the bow shock and show that SLAMS reforming the bow shock recreates the multi-spacecraft measurements. This provides a method for identifying shock reformation in the future.

AB - Shock waves in collisionless plasmas are among the most efficient particle accelerators in space. Shock reformation is a process important to plasma heating and acceleration, but direct observations of reformation at quasi-parallel shocks have been lacking. Here, we investigate Earth's quasi-parallel bow shock with observations by the four Magnetospheric Multiscale spacecraft. The multi-spacecraft observations provide evidence of short large-amplitude magnetic structures (SLAMS) causing reformation of the quasi-parallel shock. We perform an ion-kinetic Vlasiator simulation of the bow shock and show that SLAMS reforming the bow shock recreates the multi-spacecraft measurements. This provides a method for identifying shock reformation in the future.

KW - 115 Astronomy, Space science

KW - collisioless shock

KW - QUASI-PARALLEL

KW - shock reformation

KW - SATELLITE MEASUREMENTS

KW - Plasma simulations

KW - collisionless shock

KW - quasi-parallel

KW - shock reformation

KW - satellite measurements

KW - plasma simulation

KW - AMPLITUDE MAGNETIC-STRUCTURES

KW - CYCLIC BEHAVIOR

KW - BOW SHOCK

KW - FIELD

KW - ACCELERATION

KW - FORESHOCK

U2 - 10.1029/2021GL096335

DO - 10.1029/2021GL096335

M3 - Article

VL - 49

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 2

M1 - e2021GL096335

ER -

Quasi-Parallel Shock Reformation Seen by Magnetospheric Multiscale and Ion-Kinetic Simulations

Abstract

Fields of Science

Access to Document

Projects

Finnish Centre of Excellence in Research of Sustainable Space

Plasma Reconnection, Shocks and Turbulence in Solar System Interactions: Modelling and Observations

Cite this