Investigating binary-neutron-star mergers as production sites of high-energy neutrinos
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A90232%2F25%3A00641979" target="_blank" >RIV/68378271:90232/25:00641979 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1475-7516/2025/01/009" target="_blank" >https://doi.org/10.1088/1475-7516/2025/01/009</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1475-7516/2025/01/009" target="_blank" >10.1088/1475-7516/2025/01/009</a>
Alternative languages
Result language
angličtina
Original language name
Investigating binary-neutron-star mergers as production sites of high-energy neutrinos
Original language description
The end state of binary-neutron-star (BNS) mergers can manifest conditions to produce high-energy neutrinos. Inspired by the event GW170817, detected in gravitational waves and in optical/infrared emission, we investigate a scenario in which cosmic-ray (CR) particles are accelerated, in a population of BNS mergers, in the energy range that might contribute from the knee to the ankle of the CR measured spectrum. By taking into account the measured thermal and non-thermal energy density of the photon fields in the source environment as a function of the time after the merger, we model the CR interactions and the consequent neutrino production. We propagate the escaped CR and neutrino fluxes through the extragalactic space and compare the expected diffuse fluxes to the experimental data and current limits. Depending on the CR spectral and composition parameters at acceleration, and on the possible contribution to the sub-ankle CR flux, we discuss the predicted diffuse neutrino flux associated to this class of astrophysical objects, as a function of the details of the photon field characterizing the merger stage, including its evolution in time. We constrain the fraction of accelerated baryons in the source site given the BNS merger rate per volume, taking into account at the same time the constraints from the measured CR and neutrino fluxes.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
—
Continuities
—
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Cosmology and Astroparticle Physics
ISSN
1475-7516
e-ISSN
1475-7516
Volume of the periodical
2025
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
36
Pages from-to
009
UT code for WoS article
001399787100015
EID of the result in the Scopus database
2-s2.0-85214698112