Maqola

Chemical enrichment of the Perseus cluster core seen by <i>XRISM</i> /Resolve

Marc AudardDepartment of Astronomy, University of GenevaHisamitsu AwakiDepartment of Physics, Ehime UniversityRalf BallhausenCenter for Research and Exploration in Space Science and Technology, NASA/GSFC (CRESST II)Aya BambaDepartment of Physics, University of TokyoEhud BeharDepartment of Physics, TechnionRozenn Boissay-MalaquinNASA / Goddard Space Flight CenterLaura BrennemanCenter for Astrophysics | Harvard-SmithsonianGregory V. BrownLawrence Livermore National LaboratoryLia CorralesDepartment of Astronomy, University of MichiganElisa CostantiniSRON Netherlands Institute for Space ResearchRenata CumbeeNASA / Goddard Space Flight CenterMaría Díaz TrigoChris DoneCentre for Extragalactic Astronomy, Department of Physics, University of DurhamTadayasu DotaniInstitute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA)Ken EbisawaInstitute of Space and Astronautical ScienceMegan E. EckartLawrence Livermore National LaboratoryDominique EckertDepartment of Astronomy, University of GenevaSatoshi EguchiDepartment of Economics, Kumamoto Gakuen UniversityTeruaki EnotoDepartment of Physics, Kyoto UniversityYuichiro EzoeDepartment of Physics, Tokyo Metropolitan UniversityAdam FosterCenter for Astrophysics | Harvard-SmithsonianRyuichi FujimotoInstitute of Space and Astronautical ScienceYutaka FujitaDepartment of Physics, Tokyo Metropolitan UniversityYasushi FukazawaDepartment of Physics, Hiroshima UniversityKotaro FukushimaDepartment of Physics, Tokyo University of ScienceAkihiro FuruzawaDepartment of Physics, Fujita Health UniversityLuigi GalloDepartment of Astronomy and Physics, Saint Mary’s UniversityJavier A. GarcíaNASA / Goddard Space Flight CenterLiyi GuSRON Netherlands Institute for Space ResearchMatteo GuainazziEuropean Space Agency (ESA), European Space Research and Technology Centre (ESTEC)Kouichi HaginoDepartment of Physics, University of TokyoKenji HamaguchiNASA / Goddard Space Flight CenterIsamu HatsukadeFaculty of Engineering, University of MiyazakiKatsuhiro HayashiInstitute of Space and Astronautical ScienceTakayuki HayashiNASA / Goddard Space Flight CenterNatalie HellLawrence Livermore National LaboratoryEdmund Hodges-KluckNASA / Goddard Space Flight CenterAnn HornschemeierNASA / Goddard Space Flight CenterYuto IchinoheRIKEN Nishina CenterDaiki IshiInstitute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA)Manabu IshidaInstitute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA)Kumi IshikawaDepartment of Physics, Tokyo Metropolitan UniversityYoshitaka IshisakiDepartment of Physics, Tokyo Metropolitan UniversityJelle KaastraSpace Research Organisation NetherlandsTimothy KallmanNASA / Goddard Space Flight CenterErin KaraMassachusetts Institute of TechnologySatoru KatsudaDepartment of Physics, Saitama UniversityYoshiaki KanemaruInstitute of Space and Astronautical ScienceRichard KelleyNASA / Goddard Space Flight CenterCaroline KilbourneNASA / Goddard Space Flight CenterS. KitamotoDepartment of Physics, Rikkyo UniversityS. KobayashiDepartment of Physics, Tokyo University of ScienceTakayoshi KohmuraFaculty of Science and Technology, Tokyo University of ScienceAya KubotaDepartment of Electronic Information Systems, Shibaura Institute of TechnologyMaurice LeuteneggerNASA / Goddard Space Flight CenterMichael LoewensteinDepartment of Astronomy, University of MarylandYoshitomo MaedaInstitute of Space and Astronautical ScienceMaxim MarkevitchNASA / Goddard Space Flight CenterHironori MatsumotoDepartment of Earth and Space Science, Osaka UniversityKyoko MatsushitaDepartment of Physics, Tokyo University of ScienceD. McCammonDepartment of Physics, University of WisconsinBrian McNamaraDepartment of Physics & Astronomy, Waterloo Centre for Astrophysics, University of WaterlooFrançois MernierDepartment of Astronomy, University of MarylandEric D. MillerMassachusetts Institute of TechnologyJon M. MillerDepartment of Astronomy, University of MichiganIkuyuki MitsuishiDepartment of Physics, Nagoya UniversityMisaki MizumotoScience Research Education Unit, University of Teacher Education FukuokaTsunefumi MizunoHiroshima Astrophysical Science Center, Hiroshima UniversityKoji MoriFaculty of Engineering, University of MiyazakiK. MukaiCenter for Research and Exploration in Space Science and Technology, NASA/GSFC (CRESST II)Hiroshi MurakamiDepartment of Data Science, Tohoku Gakuin UniversityRichard MushotzkyDepartment of Astronomy, University of MarylandHiroshi NakajimaCollege of Science and Engineering, Kanto Gakuin UniversityKazuhiro NakazawaDepartment of Physics, Nagoya UniversityJan‐Uwe NessEuropean Space Agency(ESA), European Space Astronomy Centre (ESAC)Kumiko NobukawaDepartment of Teacher Training and School Education, Nara University of EducationMasayoshi NobukawaDepartment of Science, Faculty of Science and Engineering, KINDAI UniversityHirofumi NodaAstronomical Institute, Tohoku UniversityHirokazu OdakaThe University of OsakaShoji OgawaInstitute of Space and Astronautical ScienceAnna OgorzałekNASA / Goddard Space Flight CenterTakashi OkajimaNASA / Goddard Space Flight CenterNaomi OtaDepartment of Physics, Nara Women’s UniversityS. PaltaniDepartment of Astronomy, University of GenevaRobert PetreNASA / Goddard Space Flight CenterPaul PlucinskyCenter for Astrophysics | Harvard-SmithsonianFrederick S. PorterNASA / Goddard Space Flight CenterKatja PottschmidtCenter for Space Sciences and Technology, University of Maryland, Baltimore County (UMBC)Kosuke SatoDepartment of Astrophysics and Atmospheric Sciences, Kyoto Sangyo UniversityToshiki SatoSchool of Science and Technology, Meiji UniversityMakoto SawadaDepartment of Physics, Rikkyo UniversityHiromi SetaDepartment of Physics, Tokyo Metropolitan UniversityM. ShidatsuDepartment of Physics, Ehime UniversityAurora SimionescuSRON Netherlands Institute for Space ResearchRandall SmithCenter for Astrophysics | Harvard-SmithsonianHiromasa SuzukiFaculty of Engineering, University of MiyazakiAndrew SzymkowiakYale Center for Astronomy and Astrophysics, Yale UniversityH. TakahashiDepartment of Physics, Hiroshima UniversityMai TakeoDepartment of Physics, Saitama UniversityToru TamagawaRIKEN Nishina Center

2026

ABI

Annotatsiya

Context. The intracluster medium (ICM) is rich in chemical elements, produced by core-collapse (SNcc) and Type Ia supernovae (SNIa) over the last ∼12 Gyr. While cluster outskirts are uniformly enriched with Fe at ∼0.3 solar, strongly suggesting that the gas had been pre-enriched during or before the assembly of galaxies into clusters, the Fe abundance is known to centrally increase in the core of relaxed clusters. The origin of these central Fe peaks however, as well as the apparent presence of mysterious drops previously reported in the very centre of a number of systems, remain to be clarified. Aims. In this paper, we address these two questions by measuring the spatial distribution of Fe and its relative Si/Fe, S/Fe, Ar/Fe, Ca/Fe, Cr/Fe, Mn/Fe, and Ni/Fe ratios in the X-ray bright, nearby Perseus cluster. Methods. We take advantage of the unprecedented spectral resolution (∼5 eV) offered by the Resolve microcalorimeter on board XRISM , which observed four distinct pointings of Perseus out to ∼250 kpc (∼0.2 r 500 ) during its performance verification phase. Results. Although the presence of an X-ray bright AGN challenges a precise quantification of absolute abundances in the very core, our baseline analysis rules out a strong drop with > 2 σ confidence, at variance with previous charge-coupled device (CCD) measurements. In addition, we find a remarkable spatial uniformity of X/Fe ratios, supporting the idea of negligible late SNIa enrichment from the brightest cluster galaxy NGC 1275. We also compare the overall chemical composition of the Perseus ICM with SNcc and SNIa nucleosynthesis yield models, finding that the co-existence of two separate SNIa enrichment channels is not needed to reproduce the ICM ratios satisfactorily.

Hali tarjima qilinmagan

Identifikatorlar

DOI: 10.1051/0004-6361/202659603

Iqtiboslar va manbalar

0 ta iqtibos76 ta foydalanilgan manba