Radiative rates and opacity calculations in Ce II-IV Multiconfiguration Dirac-Hartree-Fock radiative parameters for emission lines in Ce II-IV ions and cerium opacity calculations for kilonovae

H. Carvajal Gallego; P. Palmeri; P. Quinet

Radiative rates and opacity calculations in Ce II-IV Multiconfiguration Dirac-Hartree-Fock radiative parameters for emission lines in Ce II-IV ions and cerium opacity calculations for kilonovae

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arxiv 2009.13192 v1 pith:CXOIVSD6 submitted 2020-09-28 physics.atom-ph

H. Carvajal Gallego , P. Palmeri , P. Quinet This is my paper

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keywords calculationsradiativeatomicceriumdirac-hartree-fockii-ivionskilonovae

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Large-scale calculations of atomic structures and radiative properties have been carried out for singly, doubly- and trebly ionized cerium. For this purpose, the purely relativistic multiconfiguration Dirac-Hartree-Fock (MCDHF) method was used, taking into account the effects of valence-valence and core-valence electronic correlations in detail. The results obtained were then used to calculate the expansion opacities characterizing the kilonovae observed as a result of neutron star mergers. Comparisons with previously published experimental and theoretical studies have shown that the results presented in this work are the most complete currently available, in terms of quantity and quality, concerning the atomic data and monochromatic opacities for Ce II, Ce III and Ce IV ions.

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Calibrated Lanthanide Atomic Data for Kilonova Radiative Transfer. I. Atomic Structure and Opacities
astro-ph.HE 2025-07 conditional novelty 6.0 of 10

A new calibrated atomic dataset for all singly and doubly ionized lanthanides provides 66,591 experimentally anchored transition wavelengths for kilonova modeling.

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