2025ApJ...990...78Z

Query : 2025ApJ...990...78Z

2025ApJ...990...78Z - Astrophys. J., 990, 78 (2025/September-1)

Cosmogenic Neutrino Point Source and KM3-230213A.

ZHANG Q., HUANG T.-Q. and LI Z.

Abstract (from CDS):

Cosmogenic neutrinos (CNs) are produced by ultra-high-energy cosmic rays (UHECRs) interacting with cosmic background radiation. We investigated the properties of CN point/extended sources, i.e., the neutrino spectrum and angular profile as functions of time, by assuming that UHECR sources are transient events, such as gamma-ray bursts. The properties depend much on the intergalactic magnetic field (IGMF), but the angular extent is in general subdegree, within which the CN flux can overshoot the diffuse CN flux in early time. The nearby CN point sources could be detected for the low IGMF case by future neutrino telescopes. The recent KM3-230213A event is possible to account for by a nearby transient CN source, rather than diffuse CN emission. Observations of CN point sources will provide a chance to search for UHECR sources.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Ultra-high-energy cosmic radiation - Neutrino astronomy - Particle astrophysics - Gamma-ray bursts - High energy astrophysics - Cosmic ray sources

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME KM3-230213A ev 06 17 -07.8           ~ 17 0

Query : 2025ApJ...990...78Z

Basic data :
NAME KM3-230213A -- Transient Event
Other object types: otypes_help 		ev (2025Natur)
ICRS coord. (ep=J2000) : 		06 17 12.0 -07 48 00 [ ] E 2025Natur.638..376K
FK4 coord. (ep=B1950 eq=1950) : 		06 14 47.4 -07 46 50 [ ]
Gal coord. (ep=J2000) : 		216.0603 -11.1350 [ ]
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Identifiers (1) :
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NAME KM3-230213A

References (17 between 1850 and 2026) (Total 17)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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