Speaker
Description
The High Energy Stereoscopic System (H.E.S.S.) collaboration reported the emission of two extended sources, HESS J1857+027 and HESS J1858+020, with no known counterparts with an approximate separation of 1 degree. However, in the 3HWC catalog, the High-Altitude Water Cherenkov (HAWC) collaboration reported the emission of 3HWC J1857+027. We present a multi-source fitting analysis of the HESS J1857 region with ~2860 days of observations from the HAWC observatory as part of a multi-wavelength study effort to better understand the emission mechanisms. With the improved performance and enriched statistics, we can now resolve the emission from both sources in the region beyond tens of TeV and observe a cutoff in the emission for J1857 for energies beyond ~30 TeV.
| Collaboration(s) | HAWC Collaboration |
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