Statistical analysis of mirror mode waves in sheath regions driven by interplanetary coronal mass ejection

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F18%3A00501832" target="_blank" >RIV/68378289:_____/18:00501832 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.5194/angeo-36-793-2018" target="_blank" >http://dx.doi.org/10.5194/angeo-36-793-2018</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5194/angeo-36-793-2018" target="_blank" >10.5194/angeo-36-793-2018</a>

Result language

angličtina

Original language name

Statistical analysis of mirror mode waves in sheath regions driven by interplanetary coronal mass ejection

Original language description

We present a comprehensive statistical analysis of mirror mode waves and the properties of their plasma surroundings in sheath regions driven by interplanetary coronal mass ejection (ICME). We have constructed a semi-automated method to identify mirror modes from the magnetic field data. We analyze 91 ICME sheath regions from January 1997 to April 2015 using data from the Wind spacecraft. The results imply that similarly to planetary magnetosheaths, mirror modes are also common structures in ICME sheaths. However, they occur almost exclusively as dip-like structures and in mirror stable plasma. We observe mirror modes throughout the sheath, from the bow shock to the ICME leading edge, but their amplitudes are largest closest to the shock. We also find that the shock strength (measured by Alfven Mach number) is the most important parameter in controlling the occurrence of mirror modes. Our findings suggest that in ICME sheaths the dominant source of free energy for mirror mode generation is the shock compression. We also suggest that mirror modes that are found deeper in the sheath are remnants from earlier times of the sheath evolution, generated also in the vicinity of the shock.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10305 - Fluids and plasma physics (including surface physics)

Project

<a href="/en/project/GA17-08772S" target="_blank" >GA17-08772S: Experimental and numerical analysis of wave particle interactions in the solar wind and magnetosheath</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Annales Geophysicae

ISSN

0992-7689

e-ISSN

—

Volume of the periodical

36

Issue of the periodical within the volume

3

Country of publishing house

DE - GERMANY

Number of pages

16

Pages from-to

793-808

UT code for WoS article

000433126600001

EID of the result in the Scopus database

2-s2.0-85047483420