Direct evidence of nonstationary collisionless shocks in space plasmas

Research output: Contribution to journalArticleScientificpeer-review

Standard

Direct evidence of nonstationary collisionless shocks in space plasmas. / Dimmock, Andrew P.; Russell, Christopher T.; Sagdeev, Roald Z.; Krasnoselskikh, Vladimir; Walker, Simon N.; Carr, Christopher; Dandouras, Iannis; Escoubet, C. Philippe; Ganushkina, Natalia; Gedalin, Michael; Khotyaintsev, Yuri; Aryan, Homayon; Pulkkinen, Tuija; Balikhin, Michael A.

In: Science Advances, Vol. 5, No. 2, 9926, 02.2019.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Dimmock, AP, Russell, CT, Sagdeev, RZ, Krasnoselskikh, V, Walker, SN, Carr, C, Dandouras, I, Escoubet, CP, Ganushkina, N, Gedalin, M, Khotyaintsev, Y, Aryan, H, Pulkkinen, T & Balikhin, MA 2019, 'Direct evidence of nonstationary collisionless shocks in space plasmas', Science Advances, vol. 5, no. 2, 9926. https://doi.org/10.1126/sciadv.aau9926

APA

Dimmock, A. P., Russell, C. T., Sagdeev, R. Z., Krasnoselskikh, V., Walker, S. N., Carr, C., ... Balikhin, M. A. (2019). Direct evidence of nonstationary collisionless shocks in space plasmas. Science Advances, 5(2), [9926]. https://doi.org/10.1126/sciadv.aau9926

Vancouver

Dimmock AP, Russell CT, Sagdeev RZ, Krasnoselskikh V, Walker SN, Carr C et al. Direct evidence of nonstationary collisionless shocks in space plasmas. Science Advances. 2019 Feb;5(2). 9926. https://doi.org/10.1126/sciadv.aau9926

Author

Dimmock, Andrew P. ; Russell, Christopher T. ; Sagdeev, Roald Z. ; Krasnoselskikh, Vladimir ; Walker, Simon N. ; Carr, Christopher ; Dandouras, Iannis ; Escoubet, C. Philippe ; Ganushkina, Natalia ; Gedalin, Michael ; Khotyaintsev, Yuri ; Aryan, Homayon ; Pulkkinen, Tuija ; Balikhin, Michael A. / Direct evidence of nonstationary collisionless shocks in space plasmas. In: Science Advances. 2019 ; Vol. 5, No. 2.

Bibtex - Download

@article{063a68243c0145518664814650f54982,
title = "Direct evidence of nonstationary collisionless shocks in space plasmas",
abstract = "Collisionless shocks are ubiquitous throughout the universe: around stars, supernova remnants, active galactic nuclei, binary systems, comets, and planets. Key information is carried by electromagnetic emissions from particles accelerated by high Mach number collisionless shocks. These shocks are intrinsically nonstationary, and the characteristic physical scales responsible for particle acceleration remain unknown. Quantifying these scales is crucial, as it affects the fundamental process of redistributing upstream plasma kinetic energy into other degrees of freedom-particularly electron thermalization. Direct in situ measurements of nonstationary shock dynamics have not been reported. Thus, the model that best describes this process has remained unknown. Here, we present direct evidence demonstrating that the transition to nonstationarity is associated with electron-scale field structures inside the shock ramp.",
keywords = "WAVES OBSERVED UPSTREAM, PERPENDICULAR SHOCKS, MACH NUMBER, BOW SHOCK",
author = "Dimmock, {Andrew P.} and Russell, {Christopher T.} and Sagdeev, {Roald Z.} and Vladimir Krasnoselskikh and Walker, {Simon N.} and Christopher Carr and Iannis Dandouras and Escoubet, {C. Philippe} and Natalia Ganushkina and Michael Gedalin and Yuri Khotyaintsev and Homayon Aryan and Tuija Pulkkinen and Balikhin, {Michael A.}",
year = "2019",
month = "2",
doi = "10.1126/sciadv.aau9926",
language = "English",
volume = "5",
journal = "Science Advances",
issn = "2375-2548",
number = "2",

}

RIS - Download

TY - JOUR

T1 - Direct evidence of nonstationary collisionless shocks in space plasmas

AU - Dimmock, Andrew P.

AU - Russell, Christopher T.

AU - Sagdeev, Roald Z.

AU - Krasnoselskikh, Vladimir

AU - Walker, Simon N.

AU - Carr, Christopher

AU - Dandouras, Iannis

AU - Escoubet, C. Philippe

AU - Ganushkina, Natalia

AU - Gedalin, Michael

AU - Khotyaintsev, Yuri

AU - Aryan, Homayon

AU - Pulkkinen, Tuija

AU - Balikhin, Michael A.

PY - 2019/2

Y1 - 2019/2

N2 - Collisionless shocks are ubiquitous throughout the universe: around stars, supernova remnants, active galactic nuclei, binary systems, comets, and planets. Key information is carried by electromagnetic emissions from particles accelerated by high Mach number collisionless shocks. These shocks are intrinsically nonstationary, and the characteristic physical scales responsible for particle acceleration remain unknown. Quantifying these scales is crucial, as it affects the fundamental process of redistributing upstream plasma kinetic energy into other degrees of freedom-particularly electron thermalization. Direct in situ measurements of nonstationary shock dynamics have not been reported. Thus, the model that best describes this process has remained unknown. Here, we present direct evidence demonstrating that the transition to nonstationarity is associated with electron-scale field structures inside the shock ramp.

AB - Collisionless shocks are ubiquitous throughout the universe: around stars, supernova remnants, active galactic nuclei, binary systems, comets, and planets. Key information is carried by electromagnetic emissions from particles accelerated by high Mach number collisionless shocks. These shocks are intrinsically nonstationary, and the characteristic physical scales responsible for particle acceleration remain unknown. Quantifying these scales is crucial, as it affects the fundamental process of redistributing upstream plasma kinetic energy into other degrees of freedom-particularly electron thermalization. Direct in situ measurements of nonstationary shock dynamics have not been reported. Thus, the model that best describes this process has remained unknown. Here, we present direct evidence demonstrating that the transition to nonstationarity is associated with electron-scale field structures inside the shock ramp.

KW - WAVES OBSERVED UPSTREAM

KW - PERPENDICULAR SHOCKS

KW - MACH NUMBER

KW - BOW SHOCK

U2 - 10.1126/sciadv.aau9926

DO - 10.1126/sciadv.aau9926

M3 - Article

VL - 5

JO - Science Advances

JF - Science Advances

SN - 2375-2548

IS - 2

M1 - 9926

ER -

ID: 32632956