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

Albert A, Alfaro R, Alvarez C, Angeles Camacho JR, Arteaga-Velazquez JC, Arunbabu KP, Avila Rojas D, Ayala Solares HA, Baghmanyan V, Belmont-Moreno E, Benzvi SY, Brisbois C, Caballero-Mora KS, Capistran T, Carraminana A, Casanova S, Cotti U, Cotzomi J, Coutino De Leon S, De La Fuente E, Diaz-Cruz L, Dingus BL, Duvernois MA, Diaz-Velez JC, Ellsworth RW, Engel K, Espinoza C, Fan KL, Fang K, Alonso MF, Fleischhack H, Fraija N, Galvan-Gamez A, Garcia D, Garcia-Gonzalez JA, Garfias F, Giacinti G, Gonzalez MM, Goodman JA, Harding JP, Hernandez S, Hinton J, Hona B, Huang D, Hueyotl-Zahuantitla F, Huntemeyer P, Iriarte A, Jardin-Blicq A, Joshi V, Lee WH, Leon Vargas H, Linnemann JT, Longinotti AL, Luis-Raya G, Lundeen J, Malone K, Marinelli SS, Martinez O, Martinez-Castellanos I, Martinez-Castro J, Matthews JA, Miranda-Romagnoli P, Morales-Soto JA, Moreno E, Mostafa M, Nayerhoda A, Nellen L, Newbold M, Nisa MU, Noriega-Papaqui R, Omodei N, Peisker A, Perez Araujo Y, Perez-Perez EG, Rho CD, Rosa-Gonzalez D, Ruiz-Velasco E, Salazar H, Salesa Greus F, Sandoval A, Schneider M, Schoorlemmer H, Serna Franco J, Sinnis G, Smith AJ, Springer RW, Surajbali P, Tabachnick E, Tanner M, Tibolla O, Tollefson K, Torres I, Torres-Escobedo R, Urena-Mena F, Villasenor L, Weisgarber T, Zepeda A, Zhou H, De Leon C, Alvarez JD (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Book Volume: 896

Article Number: L29

Journal Issue: 2

DOI: 10.3847/2041-8213/ab96cc

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.

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Involved external institutions

Pennsylvania State University (Penn State) United States (USA) (US) National Autonomous University of Mexico / Universidad Nacional Autónoma de México (UNAM) Mexico (MX) Universidad Autónoma de Chiapas (UNACH) Mexico (MX) Los Alamos National Laboratory United States (USA) (US) Universidad Michoacana de San Nicolás de Hidalgo (UMSNH) Mexico (MX) Autonomous University of the State of Hidalgo / Universidad Autónoma del Estado de Hidalgo Mexico (MX) University of Maryland United States (USA) (US) Max-Planck-Institut für Kernphysik (MPIK) / Max Planck Institute for Nuclear Physics Germany (DE) National Institute for Astrophysics / Istituto Nazionale Astrofisica (INAF) Italy (IT) University of Utah United States (USA) (US) Universidad de Guadalajara (UDEG) Mexico (MX) Shanghai Jiao Tong University / 上海交通大学 China (CN) Michigan State University United States (USA) (US) Polska Akademia Nauk (PAN) / Polish Academy of Sciences Poland (PL) Benemérita Universidad Autónoma de Puebla (BUAP) / Meritorious Autonomous University of Puebla Mexico (MX) Stanford University United States (USA) (US) Michigan Technological University United States (USA) (US) Universidad Politécnica de Pachuca (UPP) Mexico (MX) Center for Research and Advanced Studies of the National Polytechnic Institute / Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN) Mexico (MX) California University of Pennsylvania United States (USA) (US) University of Rochester (UR) United States (USA) (US) University of New Mexico (UNM) / Universidad de Nuevo México United States (USA) (US) University of Wisconsin - Madison United States (USA) (US) National Polytechnic Institute of Mexico / Instituto Politécnico Nacional de México Mexico (MX) University of Seoul (UOS) / 서울시립대학교 Korea, Republic of (KR)

How to cite

APA:

Albert, A., Alfaro, R., Alvarez, C., Angeles Camacho, J.R., Arteaga-Velazquez, J.C., Arunbabu, K.P.,... Alvarez, J.D. (2020). HAWC J2227+610 and Its Association with G106.3+2.7, a New Potential Galactic PeVatron. Astrophysical Journal Letters, 896(2). https://doi.org/10.3847/2041-8213/ab96cc

MLA:

Albert, A., et al. "HAWC J2227+610 and Its Association with G106.3+2.7, a New Potential Galactic PeVatron." Astrophysical Journal Letters 896.2 (2020).

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