Inverse Bremsstrahlung in Astrophysical Plasmas: The Absorption Coefficients and Gaunt Factors

Journal of astrophysics and astronomy

A. A. Mihajlov¹  V. A. Srećković1¹  N. M. Sakan¹ 

[1] Institute of Physics, University of Belgrade, P.O. Box 57, 11001, Belgrade, Serbia.$$

关键词: Atomic and molecular processes;    plasmas;    spectral lines.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

The electron–ion inverse Bremsstrahlung is considered here as a factor of the influence on the opacity of the different stellar atmospheres and other astrophysical plasmas. It is shown that this process can be successfully described in the frames of cut-off Coulomb potential model within the regions of the electron densities and temperatures. The relevant quantum mechanical method of the calculation of the corresponding spectral coefficient processes is described and discussed. The results obtained for the plasmas with the electron densities from 1014 cm$^{-3}$ to 2 · 1019 cm$^{−3}$ and temperatures from 5 · 103 K to 3 · 104 K in the wavelength region 100 nm < 𝜆 < 3000 nm are presented. Also, these results can be of interest for different laboratory plasmas.

【 授权许可】

Unknown