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https://hdl.handle.net/2440/135943
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Type: | Journal article |
Title: | A Search for Photons with Energies Above 2 × 10¹⁷ eV Using Hybrid Data from the Low-Energy Extensions of the Pierre Auger Observatory |
Other Titles: | A Search for Photons with Energies Above 2 x 1017 eV Using Hybrid Data from the Low-Energy Extensions of the Pierre Auger Observatory |
Author: | Abreu, P. Aglietta, M. Albury, J.M. Allekotte, I. Cheminant, K.A. Almela, A. Alvarez-Muñiz, J. Batista, R.A. Yebra, J.A. Anastasi, G.A. Anchordoqui, L. Andrada, B. Andringa, S. Aramo, C. Ferreira, P.R.A. Arnone, E. Velázquez, J.C.A. Asorey, H. Assis, P. Avila, G. et al. |
Citation: | The Astrophysical Journal: an international review of astronomy and astronomical physics, 2022; 933(2):125-1-125-11 |
Publisher: | American Astronomical Society |
Issue Date: | 2022 |
ISSN: | 0004-637X 1538-4357 |
Statement of Responsibility: | P. Abreu ... J. M. Albury ... J. A. Bellido ... R. W. Clay ... B. R. Dawson, J. A. Day ... T. D. Grubb ... V. M. Harvey ... G. C. Hill ... B. C. Manning ... T. Sudholz ... et al. (The Pierre Auger Collaboration) |
Abstract: | Ultra-high-energy photons with energies exceeding 10¹⁷ eV offer a wealth of connections to different aspects of cosmic-ray astrophysics as well as to gamma-ray and neutrino astronomy. The recent observations of photons with energies in the 10¹⁵ eV range further motivate searches for even higher-energy photons. In this paper, we present a search for photons with energies exceeding 2 × 10¹⁷ eV using about 5.5 yr of hybrid data from the low-energy extensions of the Pierre Auger Observatory. The upper limits on the integral photon flux derived here are the most stringent ones to date in the energy region between 10¹⁷ and 10¹⁸ eV. |
Rights: | © 2022. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. |
DOI: | 10.3847/1538-4357/ac7393 |
Grant ID: | MSMT CR LTT18004 LM2015038 LM2018102 CZ.02.1.01/0.0/0.0/16_013/0001402 CZ.02.1.01/0.0/0.0/18_046/0016010 CZ.02.1.01/0.0/0.0/17_049/0008422 |
Published version: | http://dx.doi.org/10.3847/1538-4357/ac7393 |
Appears in Collections: | Physics publications |
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hdl_135943.pdf | Published version | 1.07 MB | Adobe PDF | View/Open |
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