Benchmarking Current Capabilities for the Generation of Excitation and Photoionisation Atomic Data

Galaxies

Francis Keenan¹  Catherine Ramsbottom²  Connor Ballance²  Andrew Conroy²  Ryan Smyth²  Michael Turkington²  Luis Fernández-Menchero² 

[1] Astrophysics Research Centre, School of Mathematics and Physics, Queen’s University Belfast, Belfast BT7 1NN, UK;Centre for Theoretical Atomic, Molecular and Optical Physics, School of Mathematics and Physics, Queen’s University Belfast, Belfast BT7 1NN, UK;

关键词: R-matrix;    atomic data;    atomic processes;    collisions;    Fe-peak elements;    electron-impact excitation;    photoionization;   

DOI  :  10.3390/galaxies6030090

来源: DOAJ

【 摘 要 】

The spectra currently emerging from modern ground- and space-based astronomical instruments are of exceptionally high quality and resolution. To meaningfully analyse these spectra, researchers utilise complex modelling codes to replicate the observations. The main inputs to these codes are atomic data such as excitation and photoionisation cross sections, as well as radiative transition probabilities, energy levels, and line strengths. In this publication, the current capabilities of the numerical methods and computer packages used in the generation of these data are discussed. Particular emphasis is given to Fe-peak species and the heavy systems of tungsten and molybdenum. Some of the results presented to highlight certain issues and/or advances have already been published in the literature, while other sections present new recently evaluated atomic data for the first time.

【 授权许可】

Unknown