Data-driven Model of Temporal Evolution of Solar Mg ii h and k Profiles over the Solar Cycle
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F22%3A00559603" target="_blank" >RIV/67985815:_____/22:00559603 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0333349" target="_blank" >https://hdl.handle.net/11104/0333349</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3847/1538-4365/ac69cf" target="_blank" >10.3847/1538-4365/ac69cf</a>
Alternative languages
Result language
angličtina
Original language name
Data-driven Model of Temporal Evolution of Solar Mg ii h and k Profiles over the Solar Cycle
Original language description
The solar radiation in the cores of the Mg ii h and k spectral lines plays a significant role in the illumination of prominences, coronal mass ejections (CMEs), spicules, flare loops, and surges. Moreover, the radiation in these lines strongly correlates with solar magnetic activity and the ultraviolet solar spectral irradiance affecting the photochemistry, especially of oxygen and nitrogen, in the middle atmosphere of the Earth. This work provides a data-driven model of temporal evolution of the solar full-disk Mg ii h and k profiles over the solar cycle. The capability of the model to reproduce the Mg ii h and k profiles for an arbitrary date is statistically assessed. Based on selected 76 IRIS near-UV full-Sun mosaics covering almost the full solar cycle 24, we find the parameters of double-Gaussian fits of the disk-averaged Mg ii h and k profiles and a model of their temporal evolution parameterized by the Bremen composite Mg ii index. The model yields intensities within the uncertainties of the observed data in more than 90% of the reconstructed profiles assuming a statistically representative set of Bremen Mg ii index values in the range of 0.150-0.165. The relevant full-disk Mg ii h and k calibrated profiles with uncertainties and spectral irradiances are provided as an online machine-readable table. The model yields Mg ii h and k profiles representing the disk incident radiation for the radiative-transfer modeling of prominences, CMEs, spicules, flare loops, and surges observed at arbitrary time.
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
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
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. Supplement Series
ISSN
0067-0049
e-ISSN
1538-4365
Volume of the periodical
261
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
18
Pages from-to
17
UT code for WoS article
000827832300001
EID of the result in the Scopus database
2-s2.0-85135106731