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Opacities of singly and doubly ionised neodymium and uranium for kilonova emission modeling

2023-09Artigo científico Acesso aberto
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dc.contributor.authorFlörs, A.
dc.contributor.authorSilva, R. F.
dc.contributor.authorDeprince, J.
dc.contributor.authorGallego, H. Carvajal
dc.contributor.authorLeck, G.
dc.contributor.authorShingles, L. J.
dc.contributor.authorMartínez-Pinedo, G.
dc.contributor.authorSampaio, J. M.
dc.contributor.authorAmaro, P.
dc.contributor.authorMarques, J. P.
dc.contributor.authorGoriely, S.
dc.contributor.authorQuinet, P.
dc.contributor.authorPalmeri, P.
dc.contributor.authorGodefroid, M.
dc.contributor.institutionDF – Departamento de Física
dc.contributor.institutionLIBPhys-UNL
dc.contributor.pblBlackwell Publishing Ltd
dc.date.accessioned2023-07-19T22:15:49Z
dc.date.available2023-07-19T22:15:49Z
dc.date.issued2023-09
dc.descriptionACKNOWLEDGEMENTS AF, GL, LJS and GMP acknowledge support by the European Research Council (ERC) under the State of Hesse within the Cluster Project ELEMENTS. JD and SG acknowledge financial support from F.R.S.-FNRS (Belgium). RFS, JMS, JPM and PA acknowledge the support from FCT (Portugal) through research center funding UID/04559/2020 (LIBPhys). PQ is Research Director of the F.R.S.- FNRS. HCG is a holder of a FRIA fellowship. PP is a Research Associate of the Belgian Fund for Scientific Research F.R.S.-FNRS. This work has been supported by the Fonds de la Recherche Scientifique (FNRS, Belgium) and the Research Foundation Flanders (FWO, Belgium) under the Excellence of Science (EOS) Project (number O022818F and O000422F). Computational resources have been provided by the Consortium des Equipements de Calcul Intensif (CECI), funded by the F.R.S.-FNRS under Grant No. 2.5020.11 and by the Walloon Region of Belgium. We thank G. Gaigalas, M. Tanaka, D. Kato and C. J. Fontes for making some or all of their calculated atomic data public, facilitating benchmarks with other codes
dc.description.abstractEven though the electromagnetic counterpart AT2017gfo to the binary neutron star merger GW170817 is powered by the radioactive decay of r-process nuclei, only few tentative identifications of light r-process elements have been made so far. One of the major limitations for the identification of heavy nuclei is incomplete or missing atomic data. While substantial progress has been made on lanthanide atomic data over the last few years, for actinides there has been less emphasis, with the first complete set of opacity data only recently published. We perform atomic structure calculations of neodymium (Z = 60) as well as the corresponding actinide uranium (Z = 92). Using two different codes (FAC and HFR) for the calculation of the atomic data, we investigate the accuracy of the calculated data (energy levels and electric dipole transitions) and their effect on kilonova opacities. For the FAC calculations, we optimise the local central potential and the number of included configurations and use a dedicated calibration technique to improve the agreement between theoretical and available experimental atomic energy levels (AELs). For ions with vast amounts of experimental data available, the presented opacities agree quite well with previous estimations. On the other hand, the optimisation and calibration method cannot be used for ions with only few available AELs. For these cases, where no experimental nor benchmarked calculations are available, a large spread in the opacities estimated from the atomic data obtained with the various atomic structure codes is observed.We find that the opacity of uranium is almost double the neodymium opacity.en
dc.description.versionauthorsversion
dc.description.versionpublished
dc.format.extent20
dc.format.extent1721971
dc.identifier.doi10.1093/mnras/stad2053
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 66522480
dc.identifier.otherPURE UUID: c4de2b1e-6f10-4852-a399-ae2ae476ce82
dc.identifier.otherORCID: /0000-0002-5257-6728/work/138510476
dc.identifier.otherScopus: 85169436291
dc.identifier.otherWOS: 001038094600001
dc.identifier.urihttp://hdl.handle.net/10362/155553
dc.language.isoeng
dc.peerreviewedyes
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/885281/EU
dc.relationProbing r-process nucleosynthesis through its electromagnetic signatures
dc.relationAtomic inputs for probing the r-process in kilonovae
dc.relationLaboratório de Instrumentação e Física Experimental de Partículas
dc.relationAtomic inputs for kilonovae modeling
dc.relationinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/2022.06730.PTDC/PT
dc.titleOpacities of singly and doubly ionised neodymium and uranium for kilonova emission modelingen
dc.typejournal article
degois.publication.issue2
degois.publication.titleMonthly Notices Of The Royal Astronomical Society
degois.publication.volume524
dspace.entity.typePublication
oaire.awardNumber885281
oaire.awardNumber2022.10009.BD
oaire.awardNumberUIDP/50007/2020
oaire.awardNumber2022.06730.PTDC
oaire.awardTitleProbing r-process nucleosynthesis through its electromagnetic signatures
oaire.awardTitleAtomic inputs for probing the r-process in kilonovae
oaire.awardTitleLaboratório de Instrumentação e Física Experimental de Partículas
oaire.awardTitleAtomic inputs for kilonovae modeling
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/885281/EU
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//2022.10009.BD/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50007%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/2022.06730.PTDC/PT
oaire.fundingStreamH2020
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream3599-PPCDT
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameEuropean Commission
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
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relation.isProjectOfPublication196146a4-dc6f-429f-a0b4-04a5ecbdc604
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relation.isProjectOfPublication.latestForDiscoveryc84b409e-faec-4354-97f7-ac334981e66d

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