%0 Journal Article %T 3HWC: The Third HAWC Catalog of Very-high-energy Gamma-Ray Sources %A HAWC Collaboration (Albert, A. et al %A Salesa Greus, F. %J Astrophysical Journal %D 2020 %V 905 %N 1 %I Iop Publishing Ltd %@ 0004-637x %G English %F HAWCCollaborationAlbert+SalesaGreus2020 %O WOS:000599109900001 %O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4639), last updated on Wed, 30 Dec 2020 13:45:28 +0000 %X We present a new catalog of TeV gamma-ray sources using 1523 days of data from the High-Altitude Water Cherenkov (HAWC) Observatory. The catalog represents the most sensitive survey of the northern gamma-ray sky at energies above several TeV, with three times the exposure compared to the previous HAWC catalog, 2HWC. We report 65 sources detected at >= 5 sigma significance, along with the positions and spectral fits for each source. The catalog contains eight sources that have no counterpart in the 2HWC catalog, but are within 1 degrees of previously detected TeV emitters, and 20 sources that are more than 1 degrees away from any previously detected TeV source. Of these 20 new sources, 14 have a potential counterpart in the fourth Fermi Large Area Telescope catalog of gamma-ray sources. We also explore potential associations of 3HWC sources with pulsars in the Australia Telescope National Facility (ATNF) pulsar catalog and supernova remnants in the Galactic supernova remnant catalog. %K Gamma-ray astronomy %K Gamma-ray observatories %K High energy astrophysics %K Cosmic ray sources %R 10.3847/1538-4357/abc2d8 %U https://arxiv.org/abs/2007.08582 %U https://doi.org/10.3847/1538-4357/abc2d8 %P 76 - 14pp