Speaker
Description
Galactic PeVatrons are astrophysical sources accelerating particles up to a few PeV (~10^15 eV). The primary method to identify both electron and proton PeVatrons is the observation of gamma-ray radiation at ultra-high energies (UHE, E>100 TeV). In 2021, LHAASO detected 14 steady gamma-ray sources with photon energies above 100 TeV and up to 1.4 PeV. Most of these sources can be plausibly associated with objects such as supernova remnants, pulsar wind nebulae, and stellar clusters. However, LHAASO J0341+5258 is detected as an unidentified PeVatron, emitting gamma rays at energies above hundreds of TeV. It is extended in nature and notably bright, with a flux > 20% of the Crab Nebula's flux above 25 TeV. Therefore, multiwavelength observations are required to identify the PeVatron responsible for the UHE gamma rays, understand the source morphology and association, and shed light on the emission processes. Here, we will present the results of VERITAS and HAWC observations of this PeVatron, along with multiwavelength modeling, which will help us establish the nature of this unique source and its emission mechanisms.
| Collaboration(s) | VERITAS and HAWC |
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