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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

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Project

<a href="/en/project/GAP209%2F12%2F0103" target="_blank" >GAP209/12/0103: Radio and X-ray diagnostics of primary-energy-release processes in solar flares and their numerical simulations</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Name of the periodical

Solar Physics

ISSN

0038-0938

e-ISSN

—

Volume of the periodical

291

Issue of the periodical within the volume

2

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

19

Pages from-to

445-463

UT code for WoS article

000372878200008

EID of the result in the Scopus database

2-s2.0-84961217878