Free-Free Absorption in Solar Atmosphere

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

Research outputpeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)1067-1072
Number of pages6
JournalGeomagnetism and Aeronomy
Volume58
Issue number8
DOIs
Publication statusPublished - 1 Dec 2018

Scopus subject areas

  • Geophysics
  • Space and Planetary Science

Cite this

Dimitrijević, M. S. ; Srećković, V. A. ; Sakan, N. M. ; Bezuglov, N. N. ; Klyucharev, A. N. / Free-Free Absorption in Solar Atmosphere. In: Geomagnetism and Aeronomy. 2018 ; Vol. 58, No. 8. pp. 1067-1072.
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Free-Free Absorption in Solar Atmosphere. / Dimitrijević, M. S.; Srećković, V. A.; Sakan, N. M.; Bezuglov, N. N.; Klyucharev, A. N.

In: Geomagnetism and Aeronomy, Vol. 58, No. 8, 01.12.2018, p. 1067-1072.

Research outputpeer-review

TY - JOUR

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.

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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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