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We carry out high-energy studies of the region of the Galactic TeV source3HWC J1954+286, whose location coincides with those of PSR~J1954+2836 andsupernova remnant (SNR) G65.1+0.6. Analyzing the GeV $\gamma$-ray data obtainedwith the Large Area Telescope (LAT) onboard {\it the Fermi Gamma-ray SpaceTelescope}, we are able to separate the pulsar's emission from that of theregion. Excess power-law--like emission of a $\sim 6\sigma$ significance levelat the region is found, for which we explain as arising from the SNR~G65.1+0.6.Given the low-significance detection, either a hadronic or a leptonic model canprovide a fit to the power-law spectrum. Considering the properties of thepulsar and the SNR, we discuss the possible origin of the TeV source, andsuggest that it is likely the TeV halo associated with the pulsar.

High-energy studies of the 3HWC J1954+286 region: likely Gamma-ray detection of the supernova remnant G65.1+0.6