XRISM Constraints on Unidentified X-Ray Emission Lines, Including the 3.5 keV Line, in the Stacked Spectrum of 10 Galaxy Clusters

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F25%3A00144661" target="_blank" >RIV/00216224:14310/25:00144661 - isvavai.cz</a>

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.3847/2041-8213/ae17ad" target="_blank" >https://iopscience.iop.org/article/10.3847/2041-8213/ae17ad</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3847/2041-8213/ae17ad" target="_blank" >10.3847/2041-8213/ae17ad</a>

Jazyk výsledku

angličtina

Název v původním jazyce

XRISM Constraints on Unidentified X-Ray Emission Lines, Including the 3.5 keV Line, in the Stacked Spectrum of 10 Galaxy Clusters

Popis výsledku v původním jazyce

The American Astronomical Society, find out more. The following article isOpen access XRISM Constraints on Unidentified X-Ray Emission Lines, Including the 3.5 keV Line, in the Stacked Spectrum of 10 Galaxy Clusters XRISM Collaboration, Marc Audard, Hisamitsu Awaki, Ralf Ballhausen, Aya Bamba, Ehud Behar, Rozenn Boissay-Malaquin, Laura Brenneman, Gregory V. Brown, Lia CorralesShow full author list Published 2025 November 18 • © 2025. The Author(s). Published by the American Astronomical Society. The Astrophysical Journal Letters, Volume 994, Number 1 Citation XRISM Collaboration et al 2025 ApJL 994 L28 DOI 10.3847/2041-8213/ae17ad DownloadArticle PDFDownloadArticle ePub Authors Figures Tables References Download PDFDownload ePub Article metrics 964 Total downloads Share this article Hide article information Dates Received 2025 September 30 Revised 2025 October 23 Accepted 2025 October 25 Published 2025 November 18 Check for updates using Crossmark Unified Astronomy Thesaurus concepts Galaxy clusters; Intracluster medium; Dark matter; Warm dark matter; X-ray astronomy; X-ray sources Journal RSS Create or edit your corridor alerts What are corridors? Abstract We stack 3.75 Ms of early XRISM Resolve observations of 10 galaxy clusters to search for unidentified spectral lines in the E = 2.5-15 keV band (rest frame), including the E = 3.5 keV line reported in earlier low spectral resolution studies of cluster samples. Such an emission line may originate from the decay of the sterile neutrino, a warm dark matter (DM) candidate. No unidentified lines are detected in our stacked cluster spectrum, with the 3σ upper limit on the ms ∼ 7.1 keV DM particle decay rate (which corresponds to an E = 3.55 keV emission line) of Γ ∼ 1.0 x 10-27 s-1. This upper limit is 3-4 times lower than the one derived by Hitomi Collaboration from the Perseus observation but still 5 times higher than the XMM-Newton detection reported by E. Bulbul et al. in the stacked cluster sample. XRISM Resolve, with its high spectral resolution but small field of view, may reach the sensitivity needed to test the XMM-Newton cluster sample detection by combining several years worth of future cluster observations.

Název v anglickém jazyce

XRISM Constraints on Unidentified X-Ray Emission Lines, Including the 3.5 keV Line, in the Stacked Spectrum of 10 Galaxy Clusters

Popis výsledku anglicky

The American Astronomical Society, find out more. The following article isOpen access XRISM Constraints on Unidentified X-Ray Emission Lines, Including the 3.5 keV Line, in the Stacked Spectrum of 10 Galaxy Clusters XRISM Collaboration, Marc Audard, Hisamitsu Awaki, Ralf Ballhausen, Aya Bamba, Ehud Behar, Rozenn Boissay-Malaquin, Laura Brenneman, Gregory V. Brown, Lia CorralesShow full author list Published 2025 November 18 • © 2025. The Author(s). Published by the American Astronomical Society. The Astrophysical Journal Letters, Volume 994, Number 1 Citation XRISM Collaboration et al 2025 ApJL 994 L28 DOI 10.3847/2041-8213/ae17ad DownloadArticle PDFDownloadArticle ePub Authors Figures Tables References Download PDFDownload ePub Article metrics 964 Total downloads Share this article Hide article information Dates Received 2025 September 30 Revised 2025 October 23 Accepted 2025 October 25 Published 2025 November 18 Check for updates using Crossmark Unified Astronomy Thesaurus concepts Galaxy clusters; Intracluster medium; Dark matter; Warm dark matter; X-ray astronomy; X-ray sources Journal RSS Create or edit your corridor alerts What are corridors? Abstract We stack 3.75 Ms of early XRISM Resolve observations of 10 galaxy clusters to search for unidentified spectral lines in the E = 2.5-15 keV band (rest frame), including the E = 3.5 keV line reported in earlier low spectral resolution studies of cluster samples. Such an emission line may originate from the decay of the sterile neutrino, a warm dark matter (DM) candidate. No unidentified lines are detected in our stacked cluster spectrum, with the 3σ upper limit on the ms ∼ 7.1 keV DM particle decay rate (which corresponds to an E = 3.55 keV emission line) of Γ ∼ 1.0 x 10-27 s-1. This upper limit is 3-4 times lower than the one derived by Hitomi Collaboration from the Perseus observation but still 5 times higher than the XMM-Newton detection reported by E. Bulbul et al. in the stacked cluster sample. XRISM Resolve, with its high spectral resolution but small field of view, may reach the sensitivity needed to test the XMM-Newton cluster sample detection by combining several years worth of future cluster observations.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

<a href="/cs/project/GX21-13491X" target="_blank" >GX21-13491X: Zkoumání žhavého vesmíru a porozumění kosmické zpětné vazbě</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ASTROPHYSICAL JOURNAL LETTERS

ISSN

2041-8205

e-ISSN

2041-8213

Svazek periodika

994

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

14

Strana od-do

1-14

Kód UT WoS článku

001617601900001

EID výsledku v databázi Scopus

2-s2.0-105034226853