Signatures of Helium Continuum in Cool Flare Loops Observed by SDO/AIA
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F20%3A00535752" target="_blank" >RIV/67985815:_____/20:00535752 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.3847/2041-8213/ab9839" target="_blank" >https://doi.org/10.3847/2041-8213/ab9839</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3847/2041-8213/ab9839" target="_blank" >10.3847/2041-8213/ab9839</a>
Alternative languages
Result language
angličtina
Original language name
Signatures of Helium Continuum in Cool Flare Loops Observed by SDO/AIA
Original language description
We present an analysis of off-limb cool flare loops observed by the Solar Dynamics Observatory (SDO)/Atmospheric Imaging Assembly (AIA) during the gradual phase of SOL2017-09-10T16:06 X8.2-class flare. In the extreme-ultraviolet (EUV) channels starting from the 335 A one, cool loops appear as dark structures against the bright loop arcade. These dark structures were precisely coaligned (spatially and temporally) with loops observed by Swedish Solar Telescope (SST) in emission lines of hydrogen and ionized calcium. A recently published semi-empirical model of cool loops based on SST observations serves to predict the level of hydrogen and helium recombination continua. The continua were synthesized using an approximate non-LTE (i.e., departures from local thermodynamic equilibrium) approach and theoretical spectra were then transformed to AIA signals.
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/GA19-17102S" target="_blank" >GA19-17102S: Cool structures in solar and stellar coronae</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astrophysical Journal Letters
ISSN
2041-8213
e-ISSN
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Volume of the periodical
896
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
L35
UT code for WoS article
000543272000001
EID of the result in the Scopus database
2-s2.0-85087003630