Waves at the electron plasma frequency associated with solar wind magnetic holes: STEREO/Cluster observations

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F10%3A00353797" target="_blank" >RIV/68378289:_____/10:00353797 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Waves at the electron plasma frequency associated with solar wind magnetic holes: STEREO/Cluster observations

Original language description

Magnetic depressions are common structures of the interplanetary medium. These magnetic holes can be just isolated dips of the amplitude of the field or they can be associated with discontinuities in the field orientation (tangential or rotational). Electrostatic waves at the plasma frequency (Langmuir waves) are often observed in these magnetic structures. The aim of the present paper is to provide the main characteristics of these waves and to propose a mechanism to explain their formation. The studyis based on a statistical analysis of observations performed by STEREO and Cluster when each mission was in the free solar wind. We first provide new characteristics of the waves (polarization, energy, spectrum, occurrence). We then show that the occurrence of Langmuir waves activity inside a hole is closely linked to the presence of a significant electron strahl outside the hole. Finally, we propose a scenario for the generation of the Langmuir waves inside the holes.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BL - Plasma physics and discharge through gases

OECD FORD branch

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Project

<a href="/en/project/GP205%2F08%2FP129" target="_blank" >GP205/08/P129: Analysis of high frequency plasma waves observed in the solar wind</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2010

Confidentiality

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

Name of the periodical

Journal of Geophysical Research

ISSN

0148-0227

e-ISSN

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Volume of the periodical

115

Issue of the periodical within the volume

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Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

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UT code for WoS article

000285838700002

EID of the result in the Scopus database

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