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Type: Journal article
Title: A targeted search for point sources of EeV photons with the Pierre Auger Observatory
Author: Aab, A.
Abreu, P.
Aglietta, M.
Samarai, I.
Albuquerque, I.
Allekotte, I.
Almela, A.
Castillo, J.
Alvarez-Muñiz, J.
Anastasi, G.
Anchordoqui, L.
Andrada, B.
Andringa, S.
Aramo, C.
Arqueros, F.
Arsene, N.
Asorey, H.
Assis, P.
Aublin, J.
Avila, G.
et al.
Citation: Astrophysical Journal Letters, 2017; 837(2):L25-1-L25-7
Publisher: IOP Publishing
Issue Date: 2017
ISSN: 2041-8205
Statement of
A. Aab … J. A. Bellido … S. G. Blaess ... R. W. Clay … M. J. Cooper ... B. R. Dawson … T. D. Grubb ... T. A. Harrison … G. C. Hill … P. H. Nguyen ... S. J. Saffi ... J. Sorokin ... T. Sudholz ... P. van Bodegom ... et al.
Abstract: 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.
Keywords: Astroparticle physics; cosmic rays; methods: data analysis
Rights: © 2017. The American Astronomical Society. All rights reserved.
RMID: 0030067550
DOI: 10.3847/2041-8213/aa61a5
Appears in Collections:Physics publications

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