2026-06-27T22:58:22Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/347922023-08-28T10:44:57Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Arqueros Martínez, Fernando
author
Blanco Ramos, Francisco
author
García Pinto, Diego
author
Minaya Flores, Ignacio Andrés
author
Ortiz Ramis, Monserrat
author
Rosado Vélez, Jaime
author
Vázquez Peñas, José Ramón
2023-06-19T14:55:24Z
2023-06-19T14:55:24Z
2014-07-10
0004-637X
10.1088/0004-637X/789/2/160
https://hdl.handle.net/20.500.14352/34792
http://dx.doi.org/10.1088/0004-637X/789/2/160
http://iopscience.iop.org/
Measurements of air showers made using the hybrid technique developed with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for point sources of EeV photons anywhere in the exposed sky. A multivariate analysis reduces the background of hadronic cosmic rays. The search is sensitive to a declination band from -85 degrees to +20 degrees, in an energy range from 10(17.3) eV to 10(18.5) eV. No photon point source has been detected. An upper limit on the photon flux has been derived for every direction. The mean value of the energy flux limit that results from this, assuming a photon spectral index of -2, is 0.06 eV cm(-2) s(-1), and no celestial direction exceeds 0.25 eV cm(-2) s(-1). These upper limits constrain scenarios in which EeV cosmic ray protons are emitted by non-transient sources in the Galaxy.
eng
A search for point sources of EeV photons
journal article
URL
https://docta.ucm.es/bitstreams/4115e03f-ce32-4e54-a29c-9021a5c9268b/download
File
MD5
df9f40335124f48ec6ac95ece0b1ff05
1525183
application/pdf
arqueros13libre.pdf