Neutrinos are the most elusive particles in the Universe, capable of
traveling nearly unimpeded across it. Despite the vast amount of data
collected, a long standing and unsolved issue is still the association of
high-energy neutrinos with the astrophysical sources that originate them.
Amongst the candidate sources of neutrinos there are blazars, a class of
extragalactic sources powered by supermassive black holes that feed highly
relativistic jets, pointed towards the Earth. Previous studies appear
controversial, with several efforts claiming a tentative link between
high-energy neutrino events and individual blazars, and others putting into
question such relation. In this work we show that blazars are unambiguously
associated with high-energy astrophysical neutrinos at unprecedented level of
confidence, i.e. chance probability of 6 x 10^-7. Our statistical analysis
provides the observational evidence that blazars are astrophysical neutrino
factories and hence, extragalactic cosmic-ray accelerators.
Описание
[2207.06314] Beginning a journey across the universe: the discovery of extragalactic neutrino factories
%0 Generic
%1 buson2022beginning
%A Buson, Sara
%A Tramacere, Andrea
%A Pfeiffer, Leonard
%A Oswald, Lenz
%A de Menezes, Raniere
%A Azzollini, Alessandra
%A Ajello, Marco
%D 2022
%K blazar icecube neutrino
%T Beginning a journey across the universe: the discovery of extragalactic
neutrino factories
%U http://arxiv.org/abs/2207.06314
%X Neutrinos are the most elusive particles in the Universe, capable of
traveling nearly unimpeded across it. Despite the vast amount of data
collected, a long standing and unsolved issue is still the association of
high-energy neutrinos with the astrophysical sources that originate them.
Amongst the candidate sources of neutrinos there are blazars, a class of
extragalactic sources powered by supermassive black holes that feed highly
relativistic jets, pointed towards the Earth. Previous studies appear
controversial, with several efforts claiming a tentative link between
high-energy neutrino events and individual blazars, and others putting into
question such relation. In this work we show that blazars are unambiguously
associated with high-energy astrophysical neutrinos at unprecedented level of
confidence, i.e. chance probability of 6 x 10^-7. Our statistical analysis
provides the observational evidence that blazars are astrophysical neutrino
factories and hence, extragalactic cosmic-ray accelerators.
@misc{buson2022beginning,
abstract = {Neutrinos are the most elusive particles in the Universe, capable of
traveling nearly unimpeded across it. Despite the vast amount of data
collected, a long standing and unsolved issue is still the association of
high-energy neutrinos with the astrophysical sources that originate them.
Amongst the candidate sources of neutrinos there are blazars, a class of
extragalactic sources powered by supermassive black holes that feed highly
relativistic jets, pointed towards the Earth. Previous studies appear
controversial, with several efforts claiming a tentative link between
high-energy neutrino events and individual blazars, and others putting into
question such relation. In this work we show that blazars are unambiguously
associated with high-energy astrophysical neutrinos at unprecedented level of
confidence, i.e. chance probability of 6 x 10^{-7}. Our statistical analysis
provides the observational evidence that blazars are astrophysical neutrino
factories and hence, extragalactic cosmic-ray accelerators.},
added-at = {2022-07-14T12:56:32.000+0200},
author = {Buson, Sara and Tramacere, Andrea and Pfeiffer, Leonard and Oswald, Lenz and de Menezes, Raniere and Azzollini, Alessandra and Ajello, Marco},
biburl = {https://www.bibsonomy.org/bibtex/225a0ed8865155b0b8732129dbaa73b7a/jnecker},
description = {[2207.06314] Beginning a journey across the universe: the discovery of extragalactic neutrino factories},
interhash = {c0854e10d537a6a8a42c76ea572b704a},
intrahash = {25a0ed8865155b0b8732129dbaa73b7a},
keywords = {blazar icecube neutrino},
note = {cite arxiv:2207.06314Comment: Published in ApJL},
timestamp = {2022-07-14T12:56:32.000+0200},
title = {Beginning a journey across the universe: the discovery of extragalactic
neutrino factories},
url = {http://arxiv.org/abs/2207.06314},
year = 2022
}