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Multiple Galactic Sources with Emission Above 56 TeV Detected by HAWC

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arxiv 1909.08609 v2 pith:3YLR724X submitted 2019-09-18 astro-ph.HE

HAWC Collaboration: A.U. Abeysekara , A. Albert , R. Alfaro , J.R. Angeles Camacho , J.C. Arteaga-Velázquez , K.P. Arunbabu , D. Avila Rojas , H.A. Ayala Solares
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V. Baghmanyan E. Belmont-Moreno S.Y. BenZvi C. Brisbois K.S. Caballero-Mora T. Capistrán A. Carramiñana S. Casanova U. Cotti J. Cotzomi S. Coutiño de León E. De la Fuente C. de León S. Dichiara B.L. Dingus M.A. DuVernois J.C. Díaz-Vélez R.W. Ellsworth K. Engel C. Espinoza H. Fleischhack N. Fraija A. Galván-Gámez D. Garcia J.A. García-González F. Garfias M.M. González J.A. Goodman J.P. Harding S. Hernandez J. Hinton B. Hona D. Huang F. Hueyotl-Zahuantitla P. Hüntemeyer A. Iriarte A. Jardin-Blicq V. Joshi S. Kaufmann D. Kieda A. Lara W.H. Lee H. León Vargas J.T. Linnemann A.L. Longinotti G. Luis-Raya J. Lundeen R. López-Coto K. Malone S.S. Marinelli O. Martinez I. Martinez-Castellanos J. Martínez-Castro H. Martínez-Huerta J.A. Matthews P. Miranda-Romagnoli J.A. Morales-Soto E. Moreno M. Mostafá A. Nayerhoda L. Nellen M. Newbold M.U. Nisa R. Noriega-Papaqui A. Peisker E.G. Pérez-Pérez J. Pretz Z. Ren C.D. Rho C. Rivière D. Rosa-González M. Rosenberg E. Ruiz-Velasco F. Salesa Greus A. Sandoval M. Schneider H. Schoorlemmer G. Sinnis A.J. Smith R.W. Springer P. Surajbali E. Tabachnick M. Tanner O. Tibolla K. Tollefson I. Torres R. Torres-Escobedo L. Villaseñor T. Weisgarber J. Wood T. Yapici H. Zhang H. Zhou
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We present the first catalog of gamma-ray sources emitting above 56 and 100 TeV with data from the High Altitude Water Cherenkov (HAWC) 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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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Carpet-3 detection of a photon-like air shower with estimated primary energy above 100 TeV in a spatial and temporal coincidence with GRB 221009A

    astro-ph.HE 2025-02 conditional novelty 6.0 of 10

    Carpet-3 reports a photon-like air shower with estimated energy around 300 TeV arriving from the direction of GRB 221009A about 75 minutes after the trigger, with a coincidence probability of about 0.9 percent.

  2. Observation of VER J2019+368 with the SST-1M stereoscopic system

    astro-ph.HE 2025-07 conditional novelty 5.0 of 10

    SST-1M stereoscopic data detect VER J2019+368 at post-trial 6.5 sigma and measure a power-law spectrum with index 2.44 up to 100 TeV.

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