Modelling Quasi-Periodic Pulsations in Solar and Stellar Flares
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F18%3A43897411" target="_blank" >RIV/60076658:12310/18:43897411 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/content/pdf/10.1007%2Fs11214-018-0478-5.pdf" target="_blank" >https://link.springer.com/content/pdf/10.1007%2Fs11214-018-0478-5.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11214-018-0478-5" target="_blank" >10.1007/s11214-018-0478-5</a>
Alternative languages
Result language
angličtina
Original language name
Modelling Quasi-Periodic Pulsations in Solar and Stellar Flares
Original language description
Solar flare emission is detected in all EM bands and variations in flux density of solar energetic particles. Often the EM radiation generated in solar and stellar flares shows a pronounced oscillatory pattern, with characteristic periods ranging from a fraction of a second to several minutes. These oscillations are referred to as quasi-periodic pulsations ( QPPs), to emphasise that they often contain apparent amplitude and period modulation. We review the current understanding of quasi-periodic pulsations in solar and stellar flares. In particular, we focus on the possible physical mechanisms, with an emphasis on the underlying physics that generates the resultant range of periodicities. These physical mechanisms include MHD oscillations, self-oscillatory mechanisms, oscillatory reconnection/reconnection reversal, wave-driven reconnection, two loop coalescence, MHD flow over-stability, the equivalent LCR-contour mechanism, and thermal-dynamical cycles. We also provide a histogram of all QPP events published in the literature at this time. The occurrence of QPPs puts additional constraints on the interpretation and understanding of the fundamental processes operating in flares, e.g. magnetic energy liberation and particle acceleration. Therefore, a full understanding of QPPs is essential in order to work towards an integrated model of solar and stellar flares.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
<a href="/en/project/GA16-13277S" target="_blank" >GA16-13277S: Magnetoacoustic waves in diagnostics of solar coronal plasma: new insight through advanced numerical simulations</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Space Science Reviews
ISSN
0038-6308
e-ISSN
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Volume of the periodical
214
Issue of the periodical within the volume
1
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
54
Pages from-to
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UT code for WoS article
000426492400046
EID of the result in the Scopus database
2-s2.0-85041469046