Free-Free Absorption in Solar Atmosphere

M. S. Dimitrijević, V. A. Srećković, N. M. Sakan, N. N. Bezuglov, A. N. Klyucharev

Результат исследований: Научные публикации в периодических изданияхстатья

Выдержка

Abstract: The free-free i.e. electron-ion inverse “Bremsstrahlung” characteristics are determined for the case of the solar atmosphere as well as solar interior where such plasma characteristics as plasma density and temperature change in wide region. We demonstrate that determination of these characteristics such as the absorption coefficients and Gaunt factors can be successfully performed in the whole diapason of electron densities and temperatures which is relevant for the corresponding atmosphere model. The used quantum mechanical method of the calculation of the corresponding spectral absorption coefficient and Gaunt factor is described and discussed in details. The results are obtained for the case of a solar photosphere and solar interior model in the wavelength region 10 nm ≤λ≤3000 nm. The range of the physical parameters covers the area important for plasma modeling from astrophysical standpoint (white dwarfs, central stars of planetary nebulae, etc). Also, these results can be of interest and use in investigation of different laboratory plasmas.

Язык оригиналаанглийский
Страницы (с-по)1067-1072
Число страниц6
ЖурналGeomagnetism and Aeronomy
Том58
Номер выпуска8
DOI
СостояниеОпубликовано - 1 дек 2018

Отпечаток

solar atmosphere
solar interior
plasma
atmosphere
absorptivity
absorption coefficient
plasma temperature
planetary nebulae
photosphere
bremsstrahlung
free electrons
plasma density
astrophysics
electron energy
electron density
absorption spectra
atmospheres
stars
temperature
wavelength

Предметные области Scopus

  • Геофизика
  • Космические науки и планетоведение

Цитировать

Dimitrijević, M. S. ; Srećković, V. A. ; Sakan, N. M. ; Bezuglov, N. N. ; Klyucharev, A. N. / Free-Free Absorption in Solar Atmosphere. В: Geomagnetism and Aeronomy. 2018 ; Том 58, № 8. стр. 1067-1072.
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Dimitrijević, MS, Srećković, VA, Sakan, NM, Bezuglov, NN & Klyucharev, AN 2018, 'Free-Free Absorption in Solar Atmosphere', Geomagnetism and Aeronomy, том. 58, № 8, стр. 1067-1072. https://doi.org/10.1134/S0016793218080054

Free-Free Absorption in Solar Atmosphere. / Dimitrijević, M. S.; Srećković, V. A.; Sakan, N. M.; Bezuglov, N. N.; Klyucharev, A. N.

В: Geomagnetism and Aeronomy, Том 58, № 8, 01.12.2018, стр. 1067-1072.

Результат исследований: Научные публикации в периодических изданияхстатья

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T1 - Free-Free Absorption in Solar Atmosphere

AU - Dimitrijević, M. S.

AU - Srećković, V. A.

AU - Sakan, N. M.

AU - Bezuglov, N. N.

AU - Klyucharev, A. N.

PY - 2018/12/1

Y1 - 2018/12/1

N2 - Abstract: The free-free i.e. electron-ion inverse “Bremsstrahlung” characteristics are determined for the case of the solar atmosphere as well as solar interior where such plasma characteristics as plasma density and temperature change in wide region. We demonstrate that determination of these characteristics such as the absorption coefficients and Gaunt factors can be successfully performed in the whole diapason of electron densities and temperatures which is relevant for the corresponding atmosphere model. The used quantum mechanical method of the calculation of the corresponding spectral absorption coefficient and Gaunt factor is described and discussed in details. The results are obtained for the case of a solar photosphere and solar interior model in the wavelength region 10 nm ≤λ≤3000 nm. The range of the physical parameters covers the area important for plasma modeling from astrophysical standpoint (white dwarfs, central stars of planetary nebulae, etc). Also, these results can be of interest and use in investigation of different laboratory plasmas.

AB - Abstract: The free-free i.e. electron-ion inverse “Bremsstrahlung” characteristics are determined for the case of the solar atmosphere as well as solar interior where such plasma characteristics as plasma density and temperature change in wide region. We demonstrate that determination of these characteristics such as the absorption coefficients and Gaunt factors can be successfully performed in the whole diapason of electron densities and temperatures which is relevant for the corresponding atmosphere model. The used quantum mechanical method of the calculation of the corresponding spectral absorption coefficient and Gaunt factor is described and discussed in details. The results are obtained for the case of a solar photosphere and solar interior model in the wavelength region 10 nm ≤λ≤3000 nm. The range of the physical parameters covers the area important for plasma modeling from astrophysical standpoint (white dwarfs, central stars of planetary nebulae, etc). Also, these results can be of interest and use in investigation of different laboratory plasmas.

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