Striated drifting auroral kilometric radiation bursts: Possible stimulation by upward traveling EMIC waves

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F06%3A00045504" target="_blank" >RIV/68378289:_____/06:00045504 - 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

Striated drifting auroral kilometric radiation bursts: Possible stimulation by upward traveling EMIC waves

Original language description

We investigate waves observed by the Cluster wideband instrument (WBD) during an orbital conjunction with the Polar spacecraft. During this perigee pass, Polar was at the upper extent of the auroral kilometric radiation (AKR) source region in the Southern Hemisphere nightside auroral region. Cluster was located at higher altitude above this region and observed AKR with clear signatures of ordered fine structure striations (rain). Using electron particle data observed by HYDRA on board Polar, we have modeled the electron distribution function within the AKR source region. This distribution function is unstable to a number of low-frequency wave modes and supports EMIC waves propagating along the magnetic field line. These waves appear to be feasible to stimulate the growth of AKR, producing the ordered fine structure observed by WBD on board Cluster, but further analysis will be important, especially plasma simulations.

Czech name

Driftující struktury v AKR

Czech description

Driftující struktury v AKR.

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/ME%20842" target="_blank" >ME 842: Investigation oof Plasma waves in the Terrestrial Magnetosphere and in the Solar Systém</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

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

111

Issue of the periodical within the volume

A4

Country of publishing house

US - UNITED STATES

Number of pages

9

Pages from-to

"A04214/1"-"A04214/9

UT code for WoS article

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EID of the result in the Scopus database

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