Resonant Compton Scattering of Photons by Helium Atoms in Lorentzian Astrophysical Plasmas
Resonant Compton Scattering of Photons by Helium Atoms in Lorentzian Astrophysical Plasmas
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DOI：
10.1007/s00601-016-1148-3
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发表时间：
2016-08
期刊：
影响因子：
1.6
通讯作者：
S. Kar;Yang Wang;Y. K. Ho;Zishi Jiang
中科院分区：
文献类型：
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作者：
S. Kar;Yang Wang;Y. K. Ho;Zishi Jiang
我们研究了洛伦兹天体物理等离子体对氦原子基态和激发态光子共振康普顿散射的影响。在里兹变分法的框架下，采用高度关联的指数波函数，得到了等离子体环境中的束缚激发态能量。本文报道了洛伦兹等离子体中1s2p、1s2和1s3p、1s3和1s3d态的共振康普顿散射截面随光谱指数和等离子体参数的变化。洛伦兹等离子体的非热特性在共振康普顿散射截面上显示出有趣的特征。
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 theand 1s2p, 1s2sand 1s3p, 1s3sand 1s3dstates 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.