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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

  • Czech description

Classification

  • Type

    J<sub>ost</sub> - Miscellaneous article in a specialist periodical

  • CEP classification

  • OECD FORD branch

    10308 - Astronomy (including astrophysics,space science)

Result continuities

  • Project

  • 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

  • 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