On the Possibility of Detecting Helium D3 Line Polarization with Metis
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F20%3A00534065" target="_blank" >RIV/67985815:_____/20:00534065 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.3847/1538-4357/aba437" target="_blank" >https://doi.org/10.3847/1538-4357/aba437</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3847/1538-4357/aba437" target="_blank" >10.3847/1538-4357/aba437</a>
Alternative languages
Result language
angličtina
Original language name
On the Possibility of Detecting Helium D3 Line Polarization with Metis
Original language description
Metis, the space coronagraph on board the Solar Orbiter, offers us new capabilities for studying eruptive prominences and coronal mass ejections (CMEs). Its two spectral channels, hydrogen L alpha and visible light (VL), will provide for the first time coaligned and cotemporal images to study dynamics and plasma properties of CMEs. Moreover, with the VL channel (580-640 nm) we find an exciting possibility to detect the helium D(3)line (587.73 nm) and its linear polarization. The aim of this study is to predict the diagnostic potential of this line regarding the CME thermal and magnetic structure. For a grid of models we first compute the intensity of the D(3)line together with VL continuum intensity due to Thomson scattering on core electrons. We show that the Metis VL channel will detect a mixture of both, with predominance of the helium emission at intermediate temperatures between 30 and 50,000 K. Then we use the code HAZEL to compute the degree of linear polarization detectable in the VL channel.
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
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
ISSN
1538-4357
e-ISSN
—
Volume of the periodical
900
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
8
UT code for WoS article
000566205300001
EID of the result in the Scopus database
2-s2.0-85091175882