Connecting blazars with ultrahigh-energy cosmic rays and astrophysical neutrinos

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00547612" target="_blank" >RIV/68378271:_____/17:00547612 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1093/mnras/stx498" target="_blank" >https://doi.org/10.1093/mnras/stx498</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/mnras/stx498" target="_blank" >10.1093/mnras/stx498</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Connecting blazars with ultrahigh-energy cosmic rays and astrophysical neutrinos

Popis výsledku v původním jazyce

We present a strong hint of a connection between high-energy. gamma-ray emitting blazars, very high energy neutrinos, and ultrahigh-energy cosmic rays. We first identify potential hadronic sources by filtering gamma-ray emitters in spatial coincidence with the high-energy neutrinos detected by IceCube. The neutrino filtered. gamma-ray emitters are then correlated with the ultrahigh-energy cosmic rays from the Pierre Auger Observatory and the Telescope Array by scanning in gamma-ray flux (F-gamma) and angular separation (theta) between sources and cosmic rays. A maximal excess of 80 cosmic rays (42.5 expected) is found at theta <= 10 degrees from the neutrino-filtered. gamma-ray emitters selected from the second hard Fermi-LAT catalogue (2FHL) and for F-gamma(> 50 GeV) >= 1.8 x 10(-11) ph cm(-2) s(-1). The probability for this to happen is 2.4 x 10(-5), which translates to similar to 2.4x10(-3) after compensation for all the considered trials.

Název v anglickém jazyce

Connecting blazars with ultrahigh-energy cosmic rays and astrophysical neutrinos

Popis výsledku anglicky

We present a strong hint of a connection between high-energy. gamma-ray emitting blazars, very high energy neutrinos, and ultrahigh-energy cosmic rays. We first identify potential hadronic sources by filtering gamma-ray emitters in spatial coincidence with the high-energy neutrinos detected by IceCube. The neutrino filtered. gamma-ray emitters are then correlated with the ultrahigh-energy cosmic rays from the Pierre Auger Observatory and the Telescope Array by scanning in gamma-ray flux (F-gamma) and angular separation (theta) between sources and cosmic rays. A maximal excess of 80 cosmic rays (42.5 expected) is found at theta <= 10 degrees from the neutrino-filtered. gamma-ray emitters selected from the second hard Fermi-LAT catalogue (2FHL) and for F-gamma(> 50 GeV) >= 1.8 x 10(-11) ph cm(-2) s(-1). The probability for this to happen is 2.4 x 10(-5), which translates to similar to 2.4x10(-3) after compensation for all the considered trials.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

—

Návaznosti

—

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Monthly Notices of the Royal Astronomical Society

ISSN

0035-8711

e-ISSN

1365-2966

Svazek periodika

468

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

597-606

Kód UT WoS článku

000398419200044

EID výsledku v databázi Scopus

2-s2.0-85017222690