On the Potential Cosmogenic Origin of the Ultra-high-energy Event KM3-230213A

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F25%3A00384171" target="_blank" >RIV/68407700:21670/25:00384171 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.3847/2041-8213/adcc29" target="_blank" >https://doi.org/10.3847/2041-8213/adcc29</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3847/2041-8213/adcc29" target="_blank" >10.3847/2041-8213/adcc29</a>

Jazyk výsledku

angličtina

Název v původním jazyce

On the Potential Cosmogenic Origin of the Ultra-high-energy Event KM3-230213A

Popis výsledku v původním jazyce

On 2023 February 13, the KM3NeT/ARCA telescope observed a track-like event compatible with a ultra-high-energy muon with an estimated energy of 120 PeV, produced by a neutrino with an even higher energy, making it the most energetic neutrino event ever detected. A diffuse cosmogenic component is expected to originate from the interactions of ultra-high-energy cosmic rays with ambient photon and matter fields. The flux level required by the KM3NeT/ARCA event is, however, in tension with the standard cosmogenic neutrino predictions based on the observations collected by the Pierre Auger Observatory and Telescope Array over the last decade of the ultra-high- energy cosmic rays above the ankle (hence from the local Universe, z  1). We show here that both observations can be reconciled by extending the integration of the equivalent cosmogenic neutrino flux up to a redshift of z 6max = and considering either source evolution effects or the presence of a subdominant independent proton component in the ultra-high-energy cosmic-ray flux, thus placing constraints on known cosmic accelerators.

Název v anglickém jazyce

On the Potential Cosmogenic Origin of the Ultra-high-energy Event KM3-230213A

Popis výsledku anglicky

On 2023 February 13, the KM3NeT/ARCA telescope observed a track-like event compatible with a ultra-high-energy muon with an estimated energy of 120 PeV, produced by a neutrino with an even higher energy, making it the most energetic neutrino event ever detected. A diffuse cosmogenic component is expected to originate from the interactions of ultra-high-energy cosmic rays with ambient photon and matter fields. The flux level required by the KM3NeT/ARCA event is, however, in tension with the standard cosmogenic neutrino predictions based on the observations collected by the Pierre Auger Observatory and Telescope Array over the last decade of the ultra-high- energy cosmic rays above the ankle (hence from the local Universe, z  1). We show here that both observations can be reconciled by extending the integration of the equivalent cosmogenic neutrino flux up to a redshift of z 6max = and considering either source evolution effects or the presence of a subdominant independent proton component in the ultra-high-energy cosmic-ray flux, thus placing constraints on known cosmic accelerators.

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/GA24-12702S" target="_blank" >GA24-12702S: Experimentální a teoretický výzkum astrofyzikálních vysokoenergetických neutrin v neutrinovém teleskopu KM3NeT</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

The Astrophysical Journal Letters

ISSN

2041-8205

e-ISSN

2041-8213

Svazek periodika

984

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

1-8

Kód UT WoS článku

001481580600001

EID výsledku v databázi Scopus

2-s2.0-105004703499