The HAWC Observatory’s first catalog of sources emitting above 50 TeV and 100 TeV

We present the High Altitude Water Cherenkov (HAWC) Observatory’s first catalog of gamma-ray sources emitting at the highest energies (above 50 TeV and 100 TeV). HAWC consists of an array of 300 water Cherenkov detectors located in Puebla, Mexico and is well-suited to performing all-sky surveys due to its high duty cycle (>90%) and wide instantaneous field-of-view (∼2 sr). There are a total of seven sources in these catalogs: six in the Galactic plane, as well as the Crab Nebula. These sources may have implications for the sources of Galactic cosmic rays. Since Galactic CRs have been observed up to PeV energies, sources accelerating particles to these energies (“PeVatrons”) are expected to exist. The corresponding gamma-ray spectrum would be hard and extend to the highest energies without any spectral break or cutoff. We will compute the spectrum of these seven highest-energy sources and explore whether any of them can be considered PeVatron candidates. We will also consider the relevance of these highest-energy sources to probing violations of Lorentz Invariance.