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A Northern Sky Survey for Point-like Sources of EeV Neutral Particles with the Telescope Array Experimentстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 22 июля 2015 г.
- Авторы: Abbasi R.U., Pshirkov M.S., (Telescope Array collaboration) et al
- Журнал: Astrophysical Journal
- Том: 804
- Номер: 2
- Год издания: 2015
- Издательство: University of Chicago Press
- Местоположение издательства: United States
- Первая страница: 133
- DOI: 10.1088/0004-637X/804/2/133
- Аннотация: We report on the search for steady point-like sources of neutral particles around 10 18 eV between 2008 and 2013 May with the scintillator SD of the Telescope Array experiment. We found overall no significant point-like excess above 0.5 EeV in the northern sky. Subsequently, we also searched for coincidence with the Fermi bright Galactic sources. No significant coincidence was found within the statistical uncertainty. Hence, we set an upper limit on the neutron flux that corresponds to an averaged flux of 0.07 km −2 yr −1 for $E\gt 1$ EeV in the northern sky at the 95% confidence level. This is the most stringent flux upper limit in a northern sky survey assuming point-like sources. The upper limit at the 95% confidence level on the neutron flux from Cygnus X-3 is also set to 0.2 km −2 yr −1 for $E\gt 0.5$ EeV. This is an order of magnitude lower than previous flux measurements.
- Добавил в систему: Пширков Максим Сергеевич