Resonant Compton Scattering of Photons by Helium Atoms in Lorentzian Astrophysical Plasmas
Abstract
We investigate the effects of Lorentzian astrophysical plasmas on resonant Compton scattering of photons by the helium ground and excited states. The bound-excited states energies in the plasma environments are obtained by using highly correlated exponential wave functions in the framework of Ritz variational method. The resonance Compton scattering cross sections in Lorentzian plasmas between the 1s2{ }1S and 1s2p 1P, 1s2s 1S and 1s3p 1P, 1s3s 1S and 1s3d 1D states are reported as a function of the spectral index and plasma parameter. The nonthermal character of the Lorentzian plasmas shows interesting features on the resonant Compton scattering cross sections.
- Publication:
-
Few-Body Systems
- Pub Date:
- December 2016
- DOI:
- 10.1007/s00601-016-1148-3
- Bibcode:
- 2016FBS....57.1139K