VERITAS and HAWC observations of unidentified source LHAASO J2108+5157
Sajan Kumar (for the VERITAS collaboration), Michael Martin and, Xiaojie Wang (for the HAWC collaboration)
TL;DR
This paper presents a detailed morphological and spectral analysis of the unassociated gamma-ray source LHAASO J2108+5157 using VERITAS and HAWC data, contributing to understanding Galactic PeVatrons.
Contribution
It provides new observational insights into an unidentified VHE gamma-ray source, aiding the search for Galactic PeVatrons and exploring the nature of high-energy astrophysical sources.
Findings
Morphology analysis of LHAASO J2108+5157
Spectral characteristics of the source
Implications for Galactic PeVatrons
Abstract
Understanding the complete nature of Galactic sources that accelerate cosmic rays up to eV energy (Galactic PeVatrons) is still an unsolved problem in high-energy astrophysics. Although supernova remnants have long been considered as the best candidates for Galactic PeVatrons, a clear association of SNRs with PeVatrons needs further exploration. Recently, the LHAASO collaboration published its first catalog of 90 very high energy (VHE) gamma-ray sources, and a few of them have no obvious counterparts at other wavelengths. Here, we will present morphology and spectral analysis of one such unassociated source LHAASO J2108+5157 using VERITAS and HAWC data.
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