Photoionization Cross-Section of Chlorine-like Iron

Journal of astrophysics and astronomy

Sunny Aggarwal1¹  Man Mohan¹  A. K. S. Jha¹  Jagjit Singh¹ 

[1] Department of Physics and Astrophysics, University of Delhi, Delhi 110 007, India.$$

关键词: Atomic data;    atomic processes;    photoionization;    Fe X.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

Semi-relativistic calculations are performed for the photoionization of Fe X (an important coronal ion) from its ground state 3s23p5($^{2}P^{0}_{3/2}$) and the first two excited states 3s23p5(${}^{2}P^{0}_{1/2}$) and 3s3p6(${}^{2}S_{1/2}$) using the Breit–Pauli 𝑅-matrix method. A lowest 41 state eigenfunction expansion for Fe XI is employed to ensure an extensive treatment of auto ionizing resonances that affect the effective cross-sections. In the present calculations, we have considered all the important physical effects like channel coupling, exchange and short range correlation. The present calculations using the lowest 41 target levels of Fe XI in the LSJ coupling scheme are reported and we expect that the present results should enable more accurate modelling of the emission spectrum of highly excited plasma from the optical to the far UV region.

【 授权许可】

Unknown