3HWC: The Third HAWC Catalog of Very-high-energy Gamma-Ray Sources

Albert, A.; Alfaro, R.; Alvarez, C.; Angeles Camacho, J. R.; Arteaga-Velazquez, J. C.; Arunbabu, K. P.; Avila Rojas, D.; Ayala Solares, H. A.; Baghmanyan, V.; Belmont-Moreno, E.; BenZvi, S. Y.; Brisbois, C.; Caballero-Mora, K. S.; Capistran, T.; Carraminana, A.; Casanova, S.; Cotti, U.; Coutino de Leon, S.; De la Fuente, E.; Diaz Hernandez, R.; Diaz-Cruz, L.; Dingus, B. L.; DuVernois, M. A.; Durocher, M.; Diaz-Velez, J. C.; Ellsworth, R. W.; Engel, K.; Espinoza, C.; Fan, K. L.; Fang, K.; Alonso, M. Fernandez; Fleischhack, H.; Fraija, N.; Galvan-Gamez, A.; Garcia, D.; Garcia-Gonzalez, J. A.; Garfias, F.; Giacinti, G.; Gonzalez, M. M.; Goodman, J. A.; Harding, J. P.; Hernandez, S.; Hinton, James Anthony; Hona, B.; Huang, D.; Hueyotl-Zahuantitla, F.; Huntemeyer, P.; Iriarte, A.; Jardin-Blicq, A.; Joshi, V.; Kieda, D.; Lara, A.; Lee, W. H.; Leon Vargas, H.; Linnemann, J. T.; Longinotti, A. L.; Luis-Raya, G.; Lundeen, J.; Lopez Coto, R.; Malone, K.; Marandon, Vincent; Martinez, O.; Martinez-Castellanos, I.; Martinez-Castro, J.; Matthews, J. A.; Miranda-Romagnoli, P.; Morales-Soto , J. A.; Moreno, E.; Mostafa, M.; Nayerhoda, A.; Nellen, L.; Newbold, M.; Nisa, M. U.; Noriega-Papaqui, R.; Olivera-Nieto , L.; Omodei, N.; Peisker, A.; Perez Araujo, Y.; Perez-Perez, E. G.; Ren, Z.; Rho, C. D.; Riviere, C.; Rosa-Gonzalez, D.; Ruiz-Velasco, E.; Salazar, H.; Greus, F. Salesa; Sandoval, A.; Schneider, M.; Schoorlemmer, H.; Serna, F.; Sinnis, G.; Smith, A. J.; Springer, R. W.; Surajbali, P.; Tollefson, K.; Torres, I.; Torres-Escobedo, R.; Ukwatta, T. N.; Urena-Mena, F.; Weisgarber, T.; Werner, F.; Willox, E.; Zepeda, A.; Zhou, H.; de Leon, C.; Alvarez, J. D.

doi:10.3847/1538-4357/abc2d8

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3HWC: The Third HAWC Catalog of Very-high-energy Gamma-Ray Sources

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Giacinti, G.
Brian Reville, Astrophysical Plasma Theory (APT) - Max Planck Research Group, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Hinton, James Anthony
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Jardin-Blicq, A.
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Lopez Coto, R.
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Marandon, Vincent
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons226682

Schoorlemmer, H.
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Surajbali, P.
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Werner, F.
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Citation

Albert, A., Alfaro, R., Alvarez, C., Angeles Camacho, J. R., Arteaga-Velazquez, J. C., Arunbabu, K. P., et al. (2020). 3HWC: The Third HAWC Catalog of Very-high-energy Gamma-Ray Sources. Astrophysical Journal, 905(1): 76. doi:10.3847/1538-4357/abc2d8.

Cite as: https://hdl.handle.net/21.11116/0000-0008-297B-1

Abstract

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.