Počet záznamů: 1
Broadband microwave sub-second pulsations in an expanding coronal loop of the 2011 August 10 flare
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SYSNO ASEP 0464348 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Broadband microwave sub-second pulsations in an expanding coronal loop of the 2011 August 10 flare Tvůrce(i) Mészárosová, Hana (ASU-R) RID, ORCID
Rybák, J. (SK)
Kashapova, L. K. (RU)
Gömöry, P. (SK)
Tokhchukova, S. (RU)
Myshyakov, I. (RU)Celkový počet autorů 6 Zdroj.dok. Astronomy & Astrophysics. - : EDP Sciences - ISSN 0004-6361
Roč. 593, September (2016), A80/1-A80/11Poč.str. 11 s. Forma vydání Online - E Jazyk dok. eng - angličtina Země vyd. FR - Francie Klíč. slova Sun ; flares ; corona ; UV radiation ; oscillations Vědní obor RIV BN - Astronomie a nebeská mechanika, astrofyzika Obor OECD Astronomy (including astrophysics,space science) CEP GAP209/10/1680 GA ČR - Grantová agentura ČR GAP209/12/0103 GA ČR - Grantová agentura ČR Institucionální podpora ASU-R - RVO:67985815 UT WOS 000385820100037 EID SCOPUS 84989229109 DOI 10.1051/0004-6361/201528062 Anotace 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. Pracoviště Astronomický ústav Kontakt Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326 Rok sběru 2017
Počet záznamů: 1