IRIS observations of chromospheric heating by acoustic waves in solar quiet and active regions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F21%3A00547574" target="_blank" >RIV/67985815:_____/21:00547574 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/21:10436445
Result on the web
<a href="https://doi.org/10.1051/0004-6361/202140344" target="_blank" >https://doi.org/10.1051/0004-6361/202140344</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/202140344" target="_blank" >10.1051/0004-6361/202140344</a>
Alternative languages
Result language
angličtina
Original language name
IRIS observations of chromospheric heating by acoustic waves in solar quiet and active regions
Original language description
To study the heating of solar chromospheric magnetic and nonmagnetic regions by acoustic and magnetoacoustic waves, the deposited acoustic-energy flux derived from observations of strong chromospheric lines is compared with the total integrated radiative losses.nObserved waves propagate upward at supersonic speed. In the quiet chromosphere, the deposited acoustic flux is sufficient to balance the radiative losses and maintain the semi-empirical temperatures in the layers under study. In the active-region chromosphere, the comparison shows that the contribution of acoustic-energy flux to the radiative losses is only 10-30%.Conclusions. Acoustic and magnetoacoustic waves play an important role in the chromospheric heating, depositing a main part of their energy in the chromosphere. Acoustic waves compensate for a substantial fraction of the chromospheric radiative losses in quiet regions. In active regions, their contribution is too small to balance the radiative losses and the chromosphere has to be heated by other mechanisms.
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/GC18-08097J" target="_blank" >GC18-08097J: Quiet-Sun Magnetic Fields and Newly Emerging Flux – Dynamics, Energetics, and Upper Atmospheric Response</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomy & Astrophysics
ISSN
0004-6361
e-ISSN
1432-0746
Volume of the periodical
648
Issue of the periodical within the volume
April
Country of publishing house
FR - FRANCE
Number of pages
10
Pages from-to
A28
UT code for WoS article
000638125400004
EID of the result in the Scopus database
2-s2.0-85104031953