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HAWC J2227+610 and Its Association with G106.3+2.7, a New Potential Galactic PeVatron

  • A. Albert
  • , R. Alfaro
  • , C. Alvarez
  • , J. R.Angeles Camacho
  • , J. C. Arteaga-Velázquez
  • , K. P. Arunbabu
  • , D. Avila Rojas
  • , H. A.Ayala Solares
  • , 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
  • L. Diaz-Cruz, B. L. Dingus, M. A. Duvernois, J. C. Diáz-Vélez, R. W. Ellsworth, K. Engel, C. Espinoza, K. L. Fan, K. Fang, M. Fernández Alonso, H. Fleischhack, N. Fraija, A. Galván-Gámez, D. Garcia, J. A. Garciá-González, F. Garfias, G. Giacinti, 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, W. H. Lee, H. León Vargas, J. T. Linnemann, A. L. Longinotti, G. Luis-Raya, J. Lundeen, K. Malone, S. S. Marinelli, O. Martinez, I. Martinez-Castellanos, J. Martínez-Castro, 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, N. Omodei, A. Peisker, Y. Pérez Araujo, E. G. Pérez-Pérez, C. D. Rho, D. Rosa-González, E. Ruiz-Velasco, H. Salazar, F. Salesa Greus, A. Sandoval, M. Schneider, H. Schoorlemmer, J. Serna Franco, G. Sinnis, A. J. Smith, R. W. Springer, P. Surajbali, E. Tabachnick, M. Tanner, O. Tibolla, K. Tollefson, I. Torres, R. Torres-Escobedo, F. Ureña-Mena, L. Villaseñor, T. Weisgarber, A. Zepeda, H. Zhou, C. de León, J. D. Álvarez
  • Los Alamos National Laboratory
  • Universidad Nacional Autónoma de México
  • Universidad Autonoma de Chiapas
  • Universidad Michoacana de San Nicolas de Hidalgo
  • Pennsylvania State University
  • Polish Academy of Sciences
  • University of Rochester
  • University of Maryland, College Park
  • Instituto Nacional de Astrofisica Optica y Electronica
  • Benemerita Universidad Autonoma de Puebla
  • Universidad de Guadalajara
  • University of Wisconsin-Madison
  • Stanford University
  • Michigan Technological University
  • Max Planck Institute for Nuclear Physics
  • Friedrich-Alexander University Erlangen-Nürnberg
  • Michigan State University
  • Universidad Politecnica de Pachuca
  • Instituto Politécnico Nacional
  • University of New Mexico
  • Universidad Autonoma del Estado de Hidalgo
  • University of Utah
  • University of Seoul
  • University of Valencia
  • Texas Tech University
  • California University of Pennsylvania
  • Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
  • Shanghai Jiao Tong University

Research output: Contribution to journal › Article › peer-review

Abstract

We present the detection of very-high-energy gamma-ray emission above 100 TeV from HAWC J2227+610 with the High-Altitude Water Cherenov Gamma-Ray Observatory (HAWC) observatory. Combining our observations with previously published results by the Very Energetic Radiation Imaging Telescope Array System (VERTIAS), we interpret the gamma-ray emission from HAWC J2227+610 as emission from protons with a lower limit in their cutoff energy of 800 TeV. The most likely source of the protons is the associated supernova remnant G106.3+2.7, making it a good candidate for a Galactic PeVatron. However, a purely leptonic origin of the observed emission cannot be excluded at this time.

Original languageEnglish
Article numberL29
JournalAstrophysical Journal Letters
Volume896
Issue number2
DOIs
StatePublished - 20 Jun 2020
Externally publishedYes

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