INVESTIGADORES
FIGUEIRA Juan Manuel
artículos
Título:
A Targeted Search for Point Sources of EeV Photons with the Pierre Auger Observatory
Autor/es:
THE PIERRE AUGER COLLABORATION; J. M. FIGUEIRA
Revista:
The Astrophysical Journal Letters
Editorial:
IOP Publishing
Referencias:
Año: 2017 vol. 837 p. 1 - 7
ISSN:
2041-8205
Resumen:
The Astrophysical Journal Letters 837, L25 (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.
