Simulation of the isotropic ultra-high energy photons flux in the solar magnetic field and a comparison with observations made by the HAWC and Fermi-LAT observatories

TL;DR

This paper investigates the potential formation of cosmic ray ensembles from ultra-high energy photons interacting with the solar magnetic field, using simulations to compare predicted air showers with observations from HAWC and Fermi-LAT.

Contribution

It introduces a simulation-based analysis of UHE photon interactions with the Sun's magnetic field and compares the results with current observational data.

Findings

Simulated air showers can produce very elongated cascades spanning hundreds of kilometers.

Characteristic features include thin, elongated cascades of secondary photons.

The study provides insights into gamma-ray emissions near the Sun related to UHE photon interactions.

Abstract

In this contribution we study the possibility of the formation of cosmic ray ensembles (CRE) created by the interaction of ultra-high energy (UHE) photons with the magnetic field of the Sun. The lack of observation of those UHE and the difficulties for their identification given the current methodologies motivates this study. We performed simulations using the PRESHOWER program in order to simulate the expected extensive air showers which might be spatially correlated generated upon entering the Earth's atmosphere. We found characteristic features like very thing and extremely elongates cascades of secondary photons with their corresponding energies spanning the entire cosmic range spectrum. Shower footprints are as large as hundreds of kilometres. An application of this study is the scenario of gamma-ray emission from the vicinity of the Sun as a result of ultra-high energy photon cascading in the solar magnetic field in order to understand recent observations made by the HAWC and Fermi-LAT observatories.