HAWC and Fermi-LAT Detection of Extended Emission from the Unidentified Source 2HWC J2006+341

TL;DR

This paper reports the detection of extended gamma-ray emission from the unidentified source 2HWC J2006+341 using HAWC and Fermi-LAT, suggesting a common origin and analyzing possible emission scenarios.

Contribution

It provides the first combined analysis of HAWC and Fermi-LAT data for this source, confirming its extended nature and exploring emission origin scenarios.

Findings

Detection of extended emission at TeV and GeV energies.

Matching locations, sizes, and spectra suggest a single source.

Ruled out pulsar association due to energetics.

Abstract

The discovery of the TeV point source 2HWC J2006+341 was reported in the second HAWC gamma-ray catalog. We present a follow-up study of this source here. The TeV emission is best described by an extended source with a soft spectrum. At GeV energies, an extended source is significantly detected in Fermi-LAT data. The matching locations, sizes and spectra suggest that both gamma-ray detections correspond to the same source. Different scenarios for the origin of the emission are considered and we rule out an association to the pulsar PSR J2004+3429 due to extreme energetics required, if located at a distance of 10.8 kpc.