Multiple Galactic Sources with Emission Above 56 TeV Detected by HAWC
A. U. Abeysekara(University of Utah), A. Albert(Los Alamos National Laboratory), R. Alfaro(Universidad Nacional Autónoma de México), José Roberto Ángeles Camacho(Universidad Nacional Autónoma de México), J. C. Arteaga-Velázquez(Universidad Michoacana de San Nicolás de Hidalgo), K. P. Arunbabu(Universidad Nacional Autónoma de México), D. Avila Rojas(Universidad Nacional Autónoma de México), H. A. Ayala Solares(Pennsylvania State University), Vardan Baghmanyan(Institute of Nuclear Physics, Polish Academy of Sciences), E. Moreno(Universidad Nacional Autónoma de México), S. BenZvi(University of Rochester), C. Brisbois(University of Maryland, College Park), K. S. Caballero‐Mora(Universidad Autónoma de Chiapas), T. Capistrán(National Institute of Astrophysics, Optics and Electronics), A. Carramiñana(National Institute of Astrophysics, Optics and Electronics), S. Casanova(Institute of Nuclear Physics, Polish Academy of Sciences), U. Cotti(Universidad Michoacana de San Nicolás de Hidalgo), J. Cotzomi(Benemérita Universidad Autónoma de Puebla), S. Coutinõ de León(National Institute of Astrophysics, Optics and Electronics), E. De la Fuente(Texas Tech University), C. de León(Universidad Michoacana de San Nicolás de Hidalgo), S. Dichiara(Universidad Nacional Autónoma de México), B. L. Dingus(Los Alamos National Laboratory), M. A. DuVernois(University of Wisconsin–Madison), J. C. Díaz–Vélez(Texas Tech University), R. W. Ellsworth(University of Maryland, College Park), K. Engel(University of Maryland, College Park), C. Espinoza(Universidad Nacional Autónoma de México), Henrike Fleischhack(Michigan Technological University), N. Fraija(Universidad Nacional Autónoma de México), A. Galván-Gaméz(Universidad Nacional Autónoma de México), D. García(Universidad Nacional Autónoma de México), J. A. García-González(Universidad Nacional Autónoma de México), F. Garfias(Universidad Nacional Autónoma de México), M. M. González(Universidad Nacional Autónoma de México), J. A. Goodman(University of Maryland, College Park), J. P. Harding(Los Alamos National Laboratory), S. Hernández(Universidad Nacional Autónoma de México), J. A. Hinton(Max Planck Institute for Nuclear Physics), B. Hona(Michigan Technological University), D. Huang(Michigan Technological University), F. Hueyotl‐Zahuantitla(Universidad Autónoma de Chiapas), P. Hüntemeyer(Michigan Technological University), A. Iriarte(Universidad Nacional Autónoma de México), A. Jardin-Blicq(Max Planck Institute for Nuclear Physics), Vikas Joshi(Friedrich-Alexander-Universität Erlangen-Nürnberg), S. Kaufmann(Universidad Politécnica de Pachuca), D. Kieda(University of Utah), A. Lara(Universidad Nacional Autónoma de México), W. H. Lee(Universidad Nacional Autónoma de México), H. León Vargas(Universidad Nacional Autónoma de México), J. T. Linnemann(Michigan State University), A. L. Longinotti(National Institute of Astrophysics, Optics and Electronics), G. Luis-Raya(Universidad Politécnica de Pachuca), J. Lundeen(Michigan State University), R. López-Coto(University of Padua), K. Malone(Pennsylvania State University), S. S. Marinelli(Michigan State University), O. Martı́nez(Benemérita Universidad Autónoma de Puebla), I. Martínez-Castellanos(University of Maryland, College Park), J. Martínez-Castro(Instituto Politécnico Nacional), H. Martínez-Huerta(Universidade Federal de São Carlos), J. A. Matthews(University of New Mexico), P. Miranda-Romagnoli(Universidad Autónoma del Estado de Hidalgo), J. A. Morales-Soto(Universidad Michoacana de San Nicolás de Hidalgo), E. Moreno(Benemérita Universidad Autónoma de Puebla), M. Mostafá(Pennsylvania State University), A. Nayerhoda(Institute of Nuclear Physics, Polish Academy of Sciences), L. Nellen(Universidad Nacional Autónoma de México), M. Newbold(University of Utah), M. U. Nisa(Michigan State University), R. Noriega-Papaqui(Universidad Autónoma del Estado de Hidalgo), Alison Peisker(Michigan State University), E. G. Pérez-Pérez(Universidad Politécnica de Pachuca), J. Pretz(Pennsylvania State University), Zhixiang Ren(University of New Mexico), Chang Dong Rho(University of Rochester), C. Rivière(University of Maryland, College Park), D. Rosa‐González(National Institute of Astrophysics, Optics and Electronics), M. Rosenberg(Pennsylvania State University), E. Ruiz-Velasco(Max Planck Institute for Nuclear Physics), F. Salesa Greus(Institute of Nuclear Physics, Polish Academy of Sciences), A. Sandoval(Universidad Nacional Autónoma de México), M. Schneider(University of Maryland, College Park), Harm Schoorlemmer(Max Planck Institute for Nuclear Physics), G. Sinnis(Los Alamos National Laboratory), A. J. Smith(University of Maryland, College Park), R. W. Springer(University of Utah), P. Surajbali(Max Planck Institute for Nuclear Physics), E. Tabachnick(University of Maryland, College Park), Meghan Tanner(Pennsylvania State University), O. Tibolla(Universidad Politécnica de Pachuca), Kirsten Tollefson(Michigan State University), I. Torres(National Institute of Astrophysics, Optics and Electronics), R. Torres-Escobedo(Texas Tech University), L. Villaseñor(Benemérita Universidad Autónoma de Puebla), T. Weisgarber(University of Wisconsin–Madison), J. Wood(Marshall Space Flight Center), T. Yapici(University of Rochester), H Zhang(Purdue University West Lafayette), H. Zhou(Los Alamos National Laboratory)
Cited by 234Open Access
Abstract
We present the first catalog of gamma-ray sources emitting above 56 and 100 TeV with data from the High Altitude Water Cherenkov Observatory, a wide field-of-view observatory capable of detecting gamma rays up to a few hundred TeV. Nine sources are observed above 56 TeV, all of which are likely galactic in origin. Three sources continue emitting past 100 TeV, making this the highest-energy gamma-ray source catalog to date. We report the integral flux of each of these objects. We also report spectra for three highest-energy sources and discuss the possibility that they are PeVatrons.
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