r -矩阵原子数据在天体物理学和核聚变中的应用

IF 1.5 4区物理与天体物理 Q3 OPTICS

The European Physical Journal D Pub Date : 2023-05-04 DOI:10.1140/epjd/s10053-023-00640-6

C. A. Ramsbottom, C. P. Ballance, M. McCann

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引用次数: 0

摘要

讨论了贝尔法斯特皇后大学碰撞小组完成的电子碰撞激发r矩阵计算的选择。计算出的原子数据是各种领域应用的基础，这里给出了其中的一个示例。它们包括对活动星系核中feii发射的分析，双中子星合并光谱中可能存在的Pt和Au，以及W离子作为磁受限托卡马克等离子体诊断工具的可行性。使用最新版本的完全相对论结构代码grasp0计算辐射原子数据，使用最新开发的pdarc r矩阵包评估碰撞截面。

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R-matrix atomic data for application in astrophysics and fusion

A selection of electron-impact excitation R-matrix calculations completed by the collision group at Queens University Belfast are discussed. The atomic data calculated are the foundation of applications in a variety of fields, a sample of which are presented here. They include an analysis of Fe ii emission in active galactic nuclei, the possible presence of Pt and Au in the spectra of binary neutron star mergers and the viability of W ions as a diagnostic tool in magnetically confined tokamak plasmas. The radiative atomic data were computed using the most recent version of the fully relativistic structure code grasp0 and the collision cross sections were evaluated using the recently developed pdarc R-matrix package.

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来源期刊

The European Physical Journal D 物理-物理：原子、分子和化学物理

CiteScore

3.10

自引率

11.10%

发文量

213

审稿时长

3 months

期刊介绍： The European Physical Journal D (EPJ D) presents new and original research results in: Atomic Physics; Molecular Physics and Chemical Physics; Atomic and Molecular Collisions; Clusters and Nanostructures; Plasma Physics; Laser Cooling and Quantum Gas; Nonlinear Dynamics; Optical Physics; Quantum Optics and Quantum Information; Ultraintense and Ultrashort Laser Fields. The range of topics covered in these areas is extensive, from Molecular Interaction and Reactivity to Spectroscopy and Thermodynamics of Clusters, from Atomic Optics to Bose-Einstein Condensation to Femtochemistry.