Looking for the gamma-Ray cascades of the KM3-230213A neutrino source

IF 5.9 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Journal of Cosmology and Astroparticle Physics Pub Date : 2025-10-01 DOI:10.1088/1475-7516/2025/10/009

Milena Crnogorčević, Carlos Blanco and Tim Linden

{"title":"Looking for the gamma-Ray cascades of the KM3-230213A neutrino source","authors":"Milena Crnogorčević, Carlos Blanco and Tim Linden","doi":"10.1088/1475-7516/2025/10/009","DOIUrl":null,"url":null,"abstract":"The extreme energy of the KM3-230213A event could transform our understanding of the most energetic sources in the Universe. However, it also reveals an inconsistency between the KM3NeT detection and strong IceCube constraints on the ultra-high energy neutrino flux. The most congruous explanation for the KM3NeT and IceCube data requires KM3-230213A to be produced by a (potentially transient) source fortuitously located in a region where the KM3NeT acceptance is maximized. In hadronic models of ultra-high-energy neutrino production, such a source would also produce a bright γ-ray signal, which would cascade to GeV-TeV energies due to interactions with extragalactic background light. We utilize the γ-Cascade package to model the spectrum, spatial extension, and time-delay of such a source, and scan a region surrounding the KM3NeT event to search for a consistent γ-ray signal. We find no convincing evidence for a comparable Fermi-LAT source and place constraints on a combination of the source redshift and the intergalactic magnetic field strength between the source and Earth.","PeriodicalId":15445,"journal":{"name":"Journal of Cosmology and Astroparticle Physics","volume":"1 1","pages":""},"PeriodicalIF":5.9000,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Cosmology and Astroparticle Physics","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1088/1475-7516/2025/10/009","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}

引用次数: 0

Abstract

The extreme energy of the KM3-230213A event could transform our understanding of the most energetic sources in the Universe. However, it also reveals an inconsistency between the KM3NeT detection and strong IceCube constraints on the ultra-high energy neutrino flux. The most congruous explanation for the KM3NeT and IceCube data requires KM3-230213A to be produced by a (potentially transient) source fortuitously located in a region where the KM3NeT acceptance is maximized. In hadronic models of ultra-high-energy neutrino production, such a source would also produce a bright γ-ray signal, which would cascade to GeV-TeV energies due to interactions with extragalactic background light. We utilize the γ-Cascade package to model the spectrum, spatial extension, and time-delay of such a source, and scan a region surrounding the KM3NeT event to search for a consistent γ-ray signal. We find no convincing evidence for a comparable Fermi-LAT source and place constraints on a combination of the source redshift and the intergalactic magnetic field strength between the source and Earth.

查看原文本刊更多论文

寻找KM3-230213A中微子源的伽马射线级联

KM3-230213A事件的极端能量可能会改变我们对宇宙中最高能量源的理解。然而，它也揭示了KM3NeT探测与冰立方对超高能量中微子通量的强约束之间的不一致。对KM3NeT和冰立方数据最一致的解释是，KM3-230213A是由一个偶然位于KM3NeT接受度最大的区域的（可能是瞬态的）源产生的。在超高能量中微子产生的强子模型中，这样的源也会产生明亮的γ射线信号，由于与河外背景光的相互作用，它将级联到GeV-TeV能量。我们利用γ-Cascade包来模拟这种源的频谱、空间扩展和时间延迟，并扫描KM3NeT事件周围的区域以寻找一致的γ射线信号。我们发现没有令人信服的证据证明有一个类似的费米- lat源，并对源红移和源与地球之间的星系间磁场强度的组合进行了限制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Cosmology and Astroparticle Physics 地学天文-天文与天体物理

CiteScore

10.20

自引率

23.40%

发文量

632

审稿时长

1 months

期刊介绍： Journal of Cosmology and Astroparticle Physics (JCAP) encompasses theoretical, observational and experimental areas as well as computation and simulation. The journal covers the latest developments in the theory of all fundamental interactions and their cosmological implications (e.g. M-theory and cosmology, brane cosmology). JCAP''s coverage also includes topics such as formation, dynamics and clustering of galaxies, pre-galactic star formation, x-ray astronomy, radio astronomy, gravitational lensing, active galactic nuclei, intergalactic and interstellar matter.