Sources of Quasi-periodic Pulses in the Flare of 18 August 2012

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F16%3A00458324" target="_blank" >RIV/67985815:_____/16:00458324 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s11207-016-0846-9" target="_blank" >http://dx.doi.org/10.1007/s11207-016-0846-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11207-016-0846-9" target="_blank" >10.1007/s11207-016-0846-9</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Sources of Quasi-periodic Pulses in the Flare of 18 August 2012

Popis výsledku v původním jazyce

We analyzed spatial and spectral characteristics of quasi-periodic pulses for the limb flare on 18 August 2012, using new data from a complex of spectral and imaging instruments developed by the Siberian Solar Radio Telescope team and the Wind/Konus γ-ray spectrometer. A sequence of broadband pulses with periods of approximately ten seconds were observed in X-rays at energies between 25 keV and 300 keV, and in microwaves at frequencies from a few GHz up to 34 GHz during an interval of one minute. The 17 and 34 GHz microwave sources were at the footpoints of the small loop system, the source emitting in the 4.2 – 7.4 GHz band in the large system. The QPPs were probably generated by modulated acceleration processes in the energy-release site. We determined the plasma parameters in the radio sources by analyzing the spectra. The microwave pulses might be explained by relatively weak variations of the spectral hardness of the emitting electrons.

Název v anglickém jazyce

Sources of Quasi-periodic Pulses in the Flare of 18 August 2012

Popis výsledku anglicky

We analyzed spatial and spectral characteristics of quasi-periodic pulses for the limb flare on 18 August 2012, using new data from a complex of spectral and imaging instruments developed by the Siberian Solar Radio Telescope team and the Wind/Konus γ-ray spectrometer. A sequence of broadband pulses with periods of approximately ten seconds were observed in X-rays at energies between 25 keV and 300 keV, and in microwaves at frequencies from a few GHz up to 34 GHz during an interval of one minute. The 17 and 34 GHz microwave sources were at the footpoints of the small loop system, the source emitting in the 4.2 – 7.4 GHz band in the large system. The QPPs were probably generated by modulated acceleration processes in the energy-release site. We determined the plasma parameters in the radio sources by analyzing the spectra. The microwave pulses might be explained by relatively weak variations of the spectral hardness of the emitting electrons.

Druh

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

CEP obor

BN - Astronomie a nebeská mechanika, astrofyzika

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP209%2F12%2F0103" target="_blank" >GAP209/12/0103: Rádiová a rentgenová diagnostika procesů primárního uvolňování energie ve slunečních erupcích a jejich numerické simulace</a><br>

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

Solar Physics

ISSN

0038-0938

e-ISSN

—

Svazek periodika

291

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

19

Strana od-do

445-463

Kód UT WoS článku

000372878200008

EID výsledku v databázi Scopus

2-s2.0-84961217878