3HWC: The Third HAWC Catalog of Very-High-Energy Gamma-ray Sources
Creators: name: Albert, A.
name: Alfaro, R.
name: Alvarez, C.
name: Camacho, J. R. Angeles
name: Arteaga-Velázquez, J. C.
name: Arunbabu, K. P.
name: Rojas, D. Avila
name: Solares, H. A. Ayala
name: Baghmanyan, V.
name: Belmont-Moreno, E.
name: BenZvi, S. Y.
name: Brisbois, C.
name: Caballero-Mora, K. S.
name: Capistrán, T.
name: Carramiñana, A.
name: Casanova, S.
name: Cotti, U.
name: de León, S. Coutiño
name: De la Fuente, E.
name: Hernandez, R. Diaz
name: Diaz-Cruz, L.
name: Dingus, B. L.
name: DuVernois, M. A.
name: Durocher, M.
name: Díaz-Vélez, J. C.
name: Ellsworth, R. W.
name: Engel, K.
name: Espinoza, C.
name: Fan, K. L.
name: Fang, K.
name: Alonso, M. Fernández
name: Fleischhack, H.
name: Fraija, N.
name: Galván-Gámez, A.
name: Garcia, D.
name: García-González, J. A.
name: Garfias, F.
name: Giacinti, G.
name: González, M. M.
name: Goodman, J. A.
name: Harding, J. P.
name: Hernandez, S.
name: Hinton, J.
name: Hona, B.
name: Huang, D.
name: Hueyotl-Zahuantitla, F.
name: Hüntemeyer, P.
name: Iriarte, A.
name: Jardin-Blicq, A.
name: Joshi, V.
name: Kieda, D.
name: Lara, A.
name: Lee, W. H.
name: Vargas, H. León
name: Linnemann, J. T.
name: Longinotti, A. L.
name: Luis-Raya, G.
name: Lundeen, J.
name: López-Coto, R.
name: Malone, K.
name: Marandon, V.
name: Martinez, O.
name: Martinez-Castellanos, I.
name: Martínez-Castro, J.
name: Matthews, J. A.
name: Miranda-Romagnoli, P.
name: Morales-Soto, J. A.
name: Moreno, E.
name: Mostafá, M.
name: Nayerhoda, A.
name: Nellen, L.
name: Newbold, M.
name: Nisa, M. U.
name: Noriega-Papaqui, R.
name: Olivera-Nieto, L.
name: Omodei, N.
name: Peisker, A.
name: Araujo, Y. Pérez
name: Pérez-Pérez, E. G.
name: Ren, Z.
name: Rho, C. D.
name: Rivière, C.
name: Rosa-González, D.
name: Ruiz-Velasco, E.
name: Salazar, H.
name: Greus, F. Salesa
name: Sandoval, A.
name: Schneider, M.
name: Schoorlemmer, H.
name: Serna, F.
name: Sinnis, G.
name: Smith, A. J.
name: Springer, R. W.
name: Surajbali, P.
name: Tabachnick, E.
name: Tollefson, K.
name: Torres, I.
name: Torres-Escobedo, R.
name: Ukwatta, T. N.
name: Ureña-Mena, F.
name: Weisgarber, T.
name: Werner, F.
name: Willox, E.
name: Zepeda, A.
name: Zhou, H.
name: de León, C.
name: Álvarez, J. D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: 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 $\geq$ 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 $1^\circ$ of previously detected TeV emitters, and twenty sources that are more than $1^\circ$ away from any previously detected TeV source. Of these twenty new sources, fourteen have a potential counterpart in the fourth \textit{Fermi} Large Area Telescope catalog of gamma-ray sources. We also explore potential associations of 3HWC sources with pulsars in the ATNF pulsar catalog and supernova remnants in the Galactic supernova remnant catalog.
description: 20 pages, 11 figures. Matches the version published in The Astrophysical Journal. See accompanying data release at https://data.hawc-observatory.org/datasets/3hwc-survey/index.php