Journal Article

PUBDB-2022-04887

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Properties of A Supercritical Quasi-perpendicular Interplanetary Shock Propagating in the Terrestrial Foreshock Region

Liu, M. (Corresponding author) ; Yang, Z. ; Liu, Y. D. ; Lembege, B. ; Issautier, K. ; Wilson III, L. B. ; Zhao, S.DESY* ; Jagarlamudi, V. K. ; Zhao, X. ; Huang, J. ; Chrysaphi, N.

2022
Univ. of Chicago Press Chicago, Ill. [u.a.]

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Please use a persistent id in citations: doi:10.3847/1538-4365/ac94c8  doi:10.3204/PUBDB-2022-04887

Abstract: We investigate the properties of an interplanetary (IP) shock (M$_f$ = 2.1, $θ$Bn =80◦), which was detected by Wind on September 12th, 1999, magnetically connected to the terrestrial bow shock. Key results are obtained concerning how the IP shock modifies the terrestrial foreshock electron and ion dynamics: (1) Intensive Langmuir waves were detected downstream of the IP shock due to the enhanced penetrating terrestrial foreshock electron beams; (2) Whistler heat flux instabilities associated with the oblique precursor whistlers pitch-angle scatter the suprathermal electrons together with the normal betatron acceleration that occurs across the IP shock; (3) The IP shock is interacting with the antisunward propagating Alfv´en waves/fluctuations, and the shocked plasma shows both Alfv´enic and mirror-mode features where Alfv´en waves were separated into two parts propagating in opposite directions; (4) Intense specularly reflected gyrating ions were detected around the IP shock, which indicates that energy dissipation effects at the IP shock depend on reflected ions together with the waves intrinsic to the shock. These results provide new insights into the interaction between an IP shock and the terrestrial foreshock.

Note: ISSN 1538-4365 not unique: **2 hits**.

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Contributing Institute(s):

1. Theoretische Gravitationswellenastrophys (Z_THAT)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2022

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Database coverage:
; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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