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Laboratory Benchmark of n ≥ 4 Dielectronic Recombination Satellites of Fe xvii

2024-08Artigo científico Acesso aberto
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dc.contributor.authorGrell, Gabriel J.
dc.contributor.authorLeutenegger, Maurice A.
dc.contributor.authorAmaro, Pedro
dc.contributor.authorCrespo Lopez-Urrutia, José R.
dc.contributor.authorShah, Chintan
dc.contributor.institutionDF – Departamento de Física
dc.contributor.institutionLIBPhys-UNL
dc.contributor.pblAAS - American Astronomical Society
dc.date.accessioned2024-10-10T22:39:36Z
dc.date.available2024-10-10T22:39:36Z
dc.date.issued2024-08
dc.descriptionFunding Information: Research was funded by the Max Planck Society (MPS), Germany. We acknowledge support from NASA’s Astrophysics Program. G.G. acknowledges support under NASA award No. 80GSFC21M0002. M.L. acknowledges support from NASA's Astrophysics Division. P.A. acknowledges the support from Fundação para a Ciência e a Tecnologia (FCT), Portugal, under grant No. UID/FIS/04559/2020 (LIBPhys) and High Performance Computing Chair—a R&D infrastructure based at the University of Évora (PI: M. Avillez).C.S. acknowledges support from NASA under award number 80GSFC21M0002 and by Max Planck Society (MPS), Germany. Publisher Copyright: © 2024. The Author(s). Published by the American Astronomical Society.
dc.description.abstractWe calculated cross sections for the dielectronic recombination (DR) satellite lines of Fe xvii and benchmarked our predictions with experimental cross sections of Fe xvii resonances that were monoenergetically excited in an electron-beam ion trap. We extend the benchmark to all resolved DR and direct electron-impact excitation (DE) channels in the experimental data set, specifically the n ≥ 4 DR resonances of Fe xvii, complementing earlier investigations of n = 3 channels. Our predictions for the DR and DE absolute cross sections for the higher n complexes disagree considerably with experimental results when using the same methods as in previous works. However, we achieve agreement within ∼10% of the experimental results by an approach whereby we doubly convolve the predicted cross sections with both the spread of the electron-beam energy and the photon energy resolution of our experiment. We then calculated rate coefficients from the experimental and theoretical cross sections, finding general agreement within 2σ with the rates found in the OPEN-ADAS atomic database.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent9
dc.format.extent1116591
dc.identifier.doi10.3847/1538-4357/ad571d
dc.identifier.issn0004-637X
dc.identifier.otherPURE: 99597366
dc.identifier.otherPURE UUID: fe93c44d-3699-4444-a214-2f5e8e7cc786
dc.identifier.otherScopus: 85200880702
dc.identifier.otherWOS: 001286490700001
dc.identifier.urihttp://hdl.handle.net/10362/173340
dc.identifier.urlhttps://www.scopus.com/pages/publications/85200880702
dc.language.isoeng
dc.peerreviewedyes
dc.subjectAstronomy and Astrophysics
dc.subjectSpace and Planetary Science
dc.titleLaboratory Benchmark of n ≥ 4 Dielectronic Recombination Satellites of Fe xviien
dc.typejournal article
degois.publication.issue1
degois.publication.titleAstrophysical Journal
degois.publication.volume971
dspace.entity.typePublication
rcaap.rightsopenAccess

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