The GeV to TeV connection in the environment of SNR IC 443

TL;DR

This paper investigates the connection between GeV and TeV gamma-ray emissions from SNR IC 443, comparing model predictions with recent observations and exploring cosmic-ray diffusion and neutrino detection possibilities.

Contribution

The study tests a cosmic-ray diffusion model against new observational data from Fermi, AGILE, and VERITAS, providing insights into the high-energy environment of IC 443.

Findings

Model predictions align with recent observations

Constraints on cosmic-ray diffusion parameters

Potential neutrino signals from the SNR environment

Abstract

We have recently interpreted the source MAGIC J0616+225 as a result of delayed TeV emission of cosmic-rays diffusing from IC 443 and interacting with a cloud in the foreground of the remnant. This model was used to make predictions for future observations, especially those to be made with the Fermi satellite. Just recently, AGILE, Fermi, and VERITAS have released new results of their observations of IC 443. In this work, we compare them with the predictions of our model, exploring the GeV to TeV connection in this region of space. We use Fermi data to consider the possibility of constraining the cosmic-ray diffusion features of the environment. We analyze the cosmic-ray distributions, their interactions, and a possible detection of the SNR environment in the neutrino channel.