A targeted search for point sources of eev photons with the Pierre Auger Observatory

0479292 - FZÚ 2018 RIV US eng J - Článek v odborném periodiku
Aab, A. - Abreu, P. - Aglietta, M. - Blažek, Jiří - Boháčová, Martina - Chudoba, Jiří - Ebr, Jan - Mandát, Dušan - Palatka, Miroslav - Pech, Miroslav - Prouza, Michael - Řídký, Jan - Schovánek, Petr - Trávníček, Petr - Vícha, Jakub … celkem 399 autorů
A targeted search for point sources of eev photons with the Pierre Auger Observatory.
Astrophysical Journal Letters. Roč. 837, č. 2 (2017), 1-7, č. článku L25. ISSN 2041-8205. E-ISSN 2041-8213
Grant CEP: GA MŠMT LM2015038; GA MŠMT LG15014; GA ČR(CZ) GA14-17501S
Institucionální podpora: RVO:68378271
Klíčová slova: astroparticle physics * cosmic rays * methods * data analysis
Obor OECD: Particles and field physics
Impakt faktor: 6.634, rok: 2017

Simultaneous measurements of air showers with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for EeV photon point sources. Several Galactic and extragalactic candidate objects are grouped in classes to reduce the statistical penalty of many trials from that of a blind search and are analyzed for a significant excess above the background expectation. The presented search does not find any evidence for photon emission at candidate sources, and combined p-values for every class are reported. Particle and energy flux upper limits are given for selected candidate sources. These limits significantly constrain predictions of EeV proton emission models from non-transient Galactic and nearby extragalactic sources, as illustrated for the particular case of the Galactic center region.
Trvalý link: http://hdl.handle.net/11104/0275295