Determination of the physical properties of an erupting prominence from SOHO/LASCO and UVCS observations
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F19%3A00519293" target="_blank" >RIV/67985815:_____/19:00519293 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11104/0304292" target="_blank" >http://hdl.handle.net/11104/0304292</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1393/ncc/i2019-19037-6" target="_blank" >10.1393/ncc/i2019-19037-6</a>
Alternative languages
Result language
angličtina
Original language name
Determination of the physical properties of an erupting prominence from SOHO/LASCO and UVCS observations
Original language description
We studied the physical conditions of an erupting prominence observed in the core of a coronal mass ejection, using combination of SOHO/LASCO-C2 visible-light images and SOHO/UVCS ultraviolet data. Measured intensities and profiles of the neutral-hydrogen Lyman-alpha and Lyman-beta lines and the 977 angstrom C III line were used together with the visible-light brightness to derive the geometrical and physical parameters of the prominence, such as the line-of-sight apparent thickness. electron column density, kinetic temperature, and microturbolent velocity. These parameters were used to constrain a non-LTE (i.e., out of local thermodynamic equilibrium) radiative-transfer model of the prominence that provides the effective thickness, electron density, and flow velocity, in a sample of points selected along the prominence. The prominence can be described as a hot structure with low electron density and very low gas pressure compared to typical quiescent prominences. Intensities of the hydrogen lines were also used for a detailed determination of the plasma line-of-sight filling factor, in the two prominence points where simultaneous and cospatial LASCO-C2 and UVCS observations were available.
Czech name
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Czech description
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Classification
Type
J<sub>ost</sub> - Miscellaneous article in a specialist periodical
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nuovo Cimento
ISSN
1826-9885
e-ISSN
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Volume of the periodical
42
Issue of the periodical within the volume
1
Country of publishing house
IT - ITALY
Number of pages
3
Pages from-to
37
UT code for WoS article
000471216600010
EID of the result in the Scopus database
2-s2.0-85068614590