Searches for ultra-high-energy photons with the Pierre Auger Observatory

González, Nicolás; Filipčič, Andrej; Lundquist, Jon Paul; Shivashankara, Shima Ujjani; Stanič, Samo; Vorobiov, Serguei; Zavrtanik, Danilo; Zavrtanik, Marko

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Title:	Searches for ultra-high-energy photons with the Pierre Auger Observatory
Authors:	ID González, Nicolás (Author) ID Filipčič, Andrej (Author) ID Lundquist, Jon Paul (Author) ID Shivashankara, Shima Ujjani (Author) ID Stanič, Samo (Author) ID Vorobiov, Serguei (Author) ID Zavrtanik, Danilo (Author) ID Zavrtanik, Marko (Author), et al.
Files:	UHECR2024_023.pdf (2,04 MB) MD5: C119E40F574B0D36BCE697E81D9EA321 https://doi.org/10.22323/1.484.0023 https://pos.sissa.it/484/023/pdf This document has even more files. Complete list of files is available below.
Language:	English
Work type:	Unknown
Typology:	1.08 - Published Scientific Conference Contribution
Organization:	UNG - University of Nova Gorica
Abstract:	Ultra-high-energy (UHE, E≳10[sup]17 eV) photons are expected to originate from the interaction of UHE cosmic rays with background radiation fields, as well as from more exotic processes like the decay of hypothetical super-heavy dark matter particles. UHE photons produced at cosmic-ray sources are key ingredients for enhancing our multimessenger understanding of the cosmic-ray acceleration and transient phenomena. Pierre Auger Observatory, designed to investigate UHE cosmic rays, offers unparalleled sensitivity to UHE photons. In this contribution, we present recent results of photon searches above 10[sup]16.7 eV obtained with data collected prior to the upgrade of the Observatory. Additionally, we discuss directional and follow-up searches conducted in coincidence with gravitational wave events detected by LIGO/Virgo, highlighting the role of the Observatory in advancing multi-messenger astronomy at the highest energies.
Keywords:	ultra-high-energy cosmic rays, Pierre Auger Observatory, UHE photon search, diffuse photon flux
Publication status:	Published
Publication version:	Version of Record
Year of publishing:	2025
Number of pages:	8 str.
PID:	20.500.12556/RUNG-9936
COBISS.SI-ID:	230062083
UDC:	52
ISSN on article:	1824-8039
DOI:	10.22323/1.484.0023
NUK URN:	URN:SI:UNG:REP:SNL6KCXC
Publication date in RUNG:	24.03.2025
Views:	151
Downloads:	1
Metadata:
:	GONZÁLEZ, Nicolás, FILIPČIČ, Andrej, LUNDQUIST, Jon Paul, SHIVASHANKARA, Shima Ujjani, STANIČ, Samo, VOROBIOV, Serguei, ZAVRTANIK, Danilo and ZAVRTANIK, Marko, 2025, Searches for ultra-high-energy photons with the Pierre Auger Observatory. In : UHECR 2024, The 7th International Symposium on Ultra-High-Energy Cosmic Rays [online]. Published Scientific Conference Contribution. 2025. [Accessed 1 April 2025]. Retrieved from: https://repozitorij.ung.si/IzpisGradiva.php?lang=eng&id=9936 Copy citation

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Record is a part of a proceedings

Title:	UHECR 2024, The 7th International Symposium on Ultra-High-Energy Cosmic Rays
COBISS.SI-ID:	229932291

Record is a part of a journal

Title:	Proceedings of science
Shortened title:	Pos proc. sci.
Publisher:	Sissa
ISSN:	1824-8039
COBISS.SI-ID:	20239655

Document is financed by a project

Funder:	ARIS - Slovenian Research and Innovation Agency
Project number:	P1-0031
Name:	Večglasniška astrofizika

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