Generation mechanism of the whistler-mode waves in the plasma sheet prior to magnetic reconnection

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10191862" target="_blank" >RIV/00216208:11320/13:10191862 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378289:_____/13:00423090

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.asr.2013.02.016" target="_blank" >http://dx.doi.org/10.1016/j.asr.2013.02.016</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.asr.2013.02.016" target="_blank" >10.1016/j.asr.2013.02.016</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Generation mechanism of the whistler-mode waves in the plasma sheet prior to magnetic reconnection

Popis výsledku v původním jazyce

The whistler-mode waves and electron temperature anisotropy play a key role prior to and during magnetic reconnection. On August 21, 2002, the Cluster spacecrafts encountered a quasi-collisionless magnetic reconnection event when they crossed the plasmasheet. Prior to the southward turning of magnetospheric magnetic field and high speed ion flow, the whistler-mode waves and positive electron temperature anisotropy are simultaneously observed. Theoretic analysis shows that the electrons with positive temperature anisotropy can excite the whistler-mode waves via cyclotron resonances. Using the data of particles and magnetic field, we estimated the whistler-mode wave growth rate and the ratio of whistler-mode growth rate to wave frequency. They are 0.0016f(ce) (Electron cyclotron frequency) and 0.0086f(ce), respectively. Therefore the whistler-mode waves can grow quickly in the current sheet. The combined observations of energetic electron beams and waves show that after the southward tu

Název v anglickém jazyce

Generation mechanism of the whistler-mode waves in the plasma sheet prior to magnetic reconnection

Popis výsledku anglicky

The whistler-mode waves and electron temperature anisotropy play a key role prior to and during magnetic reconnection. On August 21, 2002, the Cluster spacecrafts encountered a quasi-collisionless magnetic reconnection event when they crossed the plasmasheet. Prior to the southward turning of magnetospheric magnetic field and high speed ion flow, the whistler-mode waves and positive electron temperature anisotropy are simultaneously observed. Theoretic analysis shows that the electrons with positive temperature anisotropy can excite the whistler-mode waves via cyclotron resonances. Using the data of particles and magnetic field, we estimated the whistler-mode wave growth rate and the ratio of whistler-mode growth rate to wave frequency. They are 0.0016f(ce) (Electron cyclotron frequency) and 0.0086f(ce), respectively. Therefore the whistler-mode waves can grow quickly in the current sheet. The combined observations of energetic electron beams and waves show that after the southward tu

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Advances in Space Research

ISSN

0273-1177

e-ISSN

—

Svazek periodika

52

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

205-210

Kód UT WoS článku

000320639100019

EID výsledku v databázi Scopus

—