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Comprehensive Laboratory Benchmark of K-shell Dielectronic Satellites of Fe xxv–xxi Ions

2025-07-01Artigo científico Acesso aberto
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dc.contributor.authorShah, Chintan
dc.contributor.authorAmaro, Pedro
dc.contributor.authorGrilo, Filipe
dc.contributor.authorGu, Ming Feng
dc.contributor.authorGu, Liyi
dc.contributor.authorSantos, José Paulo
dc.contributor.authorPorter, F. Scott
dc.contributor.authorPfeifer, Thomas
dc.contributor.authorLeutenegger, Maurice A.
dc.contributor.authorLópez-Urrutia, José R. Crespo
dc.contributor.institutionDF – Departamento de Física
dc.contributor.institutionLIBPhys-UNL
dc.date.accessioned2025-08-19T21:19:50Z
dc.date.available2025-08-19T21:19:50Z
dc.date.issued2025-07-01
dc.descriptionResearch was funded by the Max-Planck-Gesselschaft (MPG), Germany. C.S. acknowledges support from MPG and NASA-JHU Cooperative Agreement. M.F.G. acknowledges support by NASA under APRA grant 80NSSC 20K0835. M.A.L. and F.S.P. acknowledge support from the NASA Astrophysics Program. © 2025. The Author(s). Published by the American Astronomical Society.
dc.description.abstractWe report on comprehensive laboratory studies of the K-shell dielectronic recombination resonances of Fe xxv-xxi ions that prominently contribute to the hard X-ray spectrum of hot astrophysical plasmas. By scanning a monoenergetic electron beam to resonantly excite trapped Fe ions in an electron beam ion trap and achieving a high electron-ion collision energy resolution of ∼7 eV, we resolve their respective KLn satellites up to n ′ = 11 . By normalization to known radiative recombination cross sections, we also determine their excitation cross sections and that of the continuum with uncertainties below 15% and verify our results with an independent normalization based on previous measurements. Our experimental data excellently confirm the accuracy and suitability of distorted-wave calculations obtained with the Flexible Atomic Code for modeling astrophysical and fusion plasmas.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent1652122
dc.identifier.doi10.3847/1538-4357/addaba
dc.identifier.otherPURE: 119598993
dc.identifier.otherPURE UUID: a7f92069-a417-4122-9726-ed268599ac64
dc.identifier.otherORCID: /0000-0002-5257-6728/work/186629923
dc.identifier.otherScopus: 105009103585
dc.identifier.otherORCID: /0000-0002-5890-0971/work/190142859
dc.identifier.urihttp://hdl.handle.net/10362/186633
dc.identifier.urlhttps://doi.org/10.3847/1538-4357/addaba
dc.identifier.urlhttps://www.scopus.com/pages/publications/105009103585
dc.language.isoeng
dc.peerreviewedyes
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0117%2F2020/PT
dc.relationTranslation and Innovation towards Global Health
dc.titleComprehensive Laboratory Benchmark of K-shell Dielectronic Satellites of Fe xxv–xxi Ionsen
dc.typejournal article
degois.publication.issue1
degois.publication.titleThe Astrophysical Journal
degois.publication.volume987
dspace.entity.typePublication
oaire.awardNumberLA/P/0117/2020
oaire.awardNumberUI/BD/151000/2021
oaire.awardTitleTranslation and Innovation towards Global Health
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0117%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//UI%2FBD%2F151000%2F2021/PT
oaire.fundingStream6817 - DCRRNI ID
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
relation.isProjectOfPublication795dcad4-b06e-4433-8bef-472ffb05edd9
relation.isProjectOfPublication456e123b-ae4d-4f9a-bf52-d189a060e822
relation.isProjectOfPublication.latestForDiscovery456e123b-ae4d-4f9a-bf52-d189a060e822

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