The cosmic-ray energy spectrum between 2 PeV and 2 EeV observed with the TALE detector in monocular mode

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00502262" target="_blank" >RIV/68378271:_____/18:00502262 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.3847/1538-4357/aada05" target="_blank" >http://dx.doi.org/10.3847/1538-4357/aada05</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3847/1538-4357/aada05" target="_blank" >10.3847/1538-4357/aada05</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The cosmic-ray energy spectrum between 2 PeV and 2 EeV observed with the TALE detector in monocular mode

Popis výsledku v původním jazyce

We report on a measurement of the cosmic ray energy spectrum by the Telescope Array Low-Energy Extension (TALE) air fluorescence detector (FD). The TALE air FD is also sensitive to the Cherenkov light produced by shower particles. Low-energy cosmic rays, in the PeV energy range, are detectable by TALE as Cherenkov events. Using these events, we measure the energy spectrum from a low energy of similar to 2 PeV to an energy greater than 100 PeV. Above 100 PeV, TALE can detect cosmic rays using air fluorescence. This allows for the extension of the measurement to energies greater than a few EeV. In this paper, we describe the detector, explain the technique, and present results from a measurement of the spectrum using similar to 1000 hr of observation. The observed spectrum shows a clear steepening near 10(17.1) eV, along with an ankle-like structure at 10(16.2) eV. These features present important constraints on the origin of galactic cosmic rays and on propagation models.

Název v anglickém jazyce

The cosmic-ray energy spectrum between 2 PeV and 2 EeV observed with the TALE detector in monocular mode

Popis výsledku anglicky

We report on a measurement of the cosmic ray energy spectrum by the Telescope Array Low-Energy Extension (TALE) air fluorescence detector (FD). The TALE air FD is also sensitive to the Cherenkov light produced by shower particles. Low-energy cosmic rays, in the PeV energy range, are detectable by TALE as Cherenkov events. Using these events, we measure the energy spectrum from a low energy of similar to 2 PeV to an energy greater than 100 PeV. Above 100 PeV, TALE can detect cosmic rays using air fluorescence. This allows for the extension of the measurement to energies greater than a few EeV. In this paper, we describe the detector, explain the technique, and present results from a measurement of the spectrum using similar to 1000 hr of observation. The observed spectrum shows a clear steepening near 10(17.1) eV, along with an ankle-like structure at 10(16.2) eV. These features present important constraints on the origin of galactic cosmic rays and on propagation models.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

<a href="/cs/project/EF15_003%2F0000437" target="_blank" >EF15_003/0000437: Kosmologie, gravitace a temný sektor vesmíru</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Astrophysical Journal

ISSN

0004-637X

e-ISSN

—

Svazek periodika

865

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

18

Strana od-do

1-18

Kód UT WoS článku

000445493000005

EID výsledku v databázi Scopus

2-s2.0-85053920773