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- Lund UniversitySE69 papers
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47 papers · 1 filter
Atomic data benchmarked by Large-scale Multiconfiguration Dirac-Hartree-Fock Calculations for Beryllium
Sijie Wu, Shaowei Tian, Ran Si +6
The multiconfiguration Dirac-Hartree-Fock (MCDHF) and relativistic configuration interaction (RCI) methods are used to provide excitation energies, radiative transition data, lifet…
Accurate transition and hyperfine data in Ag I from Multiconfiguration Dirac-Hartree-Fock and Relativistic Coupled-Cluster methods
P. Jönsson, B. K. Sahoo, S. Caliskan +1
Silver is a key tracer of the weak r-process in late-type stars. However, when the assumption of local thermodynamic equilibrium (LTE) needs to be relaxed, accurate abundance deter…
multiconfigurational calculations of experimentally significant energy levels and transition rates in Lr I
Joseph S. Andrews, Andrey I. Bondarev, Per Jönsson +4
Large-scale multiconfigurational calculations are conducted on experimentally significant transitions in Lr I and its lanthanide homologue Lu I, exhibiting good agreement with rece…
Graspg -- An extension to Grasp2018 based on Configuration State Function Generators
Ran Si, Yanting Li, Kai Wang +4
The Graspg program package is an extension of Grasp2018 [Comput. Phys. Commun. 237 (2019) 184-187] based on configuration state function generators (CSFGs). The generators keep spi…
Extended MCDHF calculations of energy levels and transition data for N I
Meichun Li, Wenxian Li, P. Jönsson +2
Accurate and extensive atomic data are essential for spectroscopic analyses of stellar atmospheres and other astronomical objects. We present energy levels, lifetimes, and transiti…
Benchmarking calculations with spectroscopic accuracy of level energies and wavelengths in W LVII - W LXII tungsten ions
Chun Yu Zhang, Kai Wang, Ran Si +5
Atomic properties of states of the W W ions are systematically investigated through two state-of-the-art methods, namely, the second-order many-body pertu…