Broadband microwave sub-second pulsations in an expanding coronal loop of the 2011 August 10 flare

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F16%3A00464348" target="_blank" >RIV/67985815:_____/16:00464348 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1051/0004-6361/201528062" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201528062</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201528062" target="_blank" >10.1051/0004-6361/201528062</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Broadband microwave sub-second pulsations in an expanding coronal loop of the 2011 August 10 flare

Popis výsledku v původním jazyce

We studied the characteristic physical properties and behavior of broadband microwave sub-second pulsations observed in an expanding coronal loop during the GOES C2.4 solar flare on 2011 August 10.The complex microwave dynamic spectrum and the expanding loop images were analyzed with the help of SDO/AIA/HMI,RHESSI, and the STEREO/SECCHI-EUVI data. The EUV intensity of the expanding loop increased just before the radio source triggering. Two EUV bidirectional flows that are linked with the start time of the loop expansion. Their positions were close to the radio source. We demonstrate that periodic regime of the electron acceleration in a model of the quasi-periodic magnetic reconnection might be able to explain physical properties and behavior of the sub-second pulsations. The depolarization process of the microwave emission might be caused by a plasma turbulence in the radio source. Finally, the observed EUV flows might be linked with reconnection outflows.

Název v anglickém jazyce

Broadband microwave sub-second pulsations in an expanding coronal loop of the 2011 August 10 flare

Popis výsledku anglicky

We studied the characteristic physical properties and behavior of broadband microwave sub-second pulsations observed in an expanding coronal loop during the GOES C2.4 solar flare on 2011 August 10.The complex microwave dynamic spectrum and the expanding loop images were analyzed with the help of SDO/AIA/HMI,RHESSI, and the STEREO/SECCHI-EUVI data. The EUV intensity of the expanding loop increased just before the radio source triggering. Two EUV bidirectional flows that are linked with the start time of the loop expansion. Their positions were close to the radio source. We demonstrate that periodic regime of the electron acceleration in a model of the quasi-periodic magnetic reconnection might be able to explain physical properties and behavior of the sub-second pulsations. The depolarization process of the microwave emission might be caused by a plasma turbulence in the radio source. Finally, the observed EUV flows might be linked with reconnection outflows.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Astronomy & Astrophysics

ISSN

1432-0746

e-ISSN

—

Svazek periodika

593

Číslo periodika v rámci svazku

September

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

11

Strana od-do

—

Kód UT WoS článku

000385820100037

EID výsledku v databázi Scopus

2-s2.0-84989229109