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HAWC J2227+610 and its association with G106.3+2.7, a new potential Galactic PeVatron

Authors :
Albert, A.
Alfaro, R.
Alvarez, C.
Camacho, J. R. Angeles
Arteaga-Velázquez, J. C.
Arunbabu, K. P.
Rojas, D. Avila
Solares, H. A. Ayala
Baghmanyan, V.
Belmont-Moreno, E.
BenZvi, S. Y.
Brisbois, C.
Caballero-Mora, K. S.
Capistrán, T.
Carramiñana, A.
Casanova, S.
Cotti, U.
Cotzomi, J.
de León, S. Coutiño
De la Fuente, E.
Diaz-Cruz, L.
Dingus, B. L.
DuVernois, M. A.
Díaz-Vélez, J. C.
Ellsworth, R. W.
Engel, K.
Espinoza, C.
Fan, K. L.
Fang, K.
Alonso, M. Fernández
Fleischhack, H.
Fraija, N.
Galván-Gámez, A.
Garcia, D.
García-González, J. A.
Garfias, F.
Giacinti, G.
González, M. M.
Goodman, J. A.
Harding, J. P.
Hernandez, S.
Hinton, J.
Hona, B.
Huang, D.
Hueyotl-Zahuantitla, F.
Hüntemeyer, P.
Iriarte, A.
Jardin-Blicq, A.
Joshi, V.
Lee, W. H.
Vargas, H. León
Linnemann, J. T.
Longinotti, A. L.
Luis-Raya, G.
Lundeen, J.
Malone, K.
Marinelli, S. S.
Martinez, O.
Martinez-Castellanos, I.
Martínez-Castro, J.
Matthews, J. A.
Miranda-Romagnoli, P.
Morales-Soto, J. A.
Moreno, E.
Mostafá, M.
Nayerhoda, A.
Nellen, L.
Newbold, M.
Nisa, M. U.
Noriega-Papaqui, R.
Omodei, N.
Peisker, A.
Araujo, Y. Pérez
Pérez-Pérez, E. G.
Rho, C. D.
Rosa-González, D.
Ruiz-Velasco, E.
Salazar, H.
Greus, F. Salesa
Sandoval, A.
Schneider, M.
Schoorlemmer, H.
Franco, J. Serna
Sinnis, G.
Smith, A. J.
Springer, R. W.
Surajbali, P.
Tabachnick, E.
Tanner, M.
Tibolla, O.
Tollefson, K.
Torres, I.
Torres-Escobedo, R.
Ureña-Mena, F.
Villaseñor, L.
Weisgarber, T.
Zepeda, A.
Zhou, H.
de León, C.
Álvarez, J. D.
Source :
ApJL 896 L29 (2020)
Publication Year :
2020

Abstract

We present the detection of VHE gamma-ray emission above 100 TeV from HAWC J2227+610 with the HAWC observatory. Combining our observations with previously published results by VERITAS, 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.<br />Comment: Accepted for publication by ApJL

Subjects

Subjects :
Astrophysics - High Energy Astrophysical Phenomena

Details

Database :
arXiv
Journal :
ApJL 896 L29 (2020)
Publication Type :
Report
Accession number :
edsarx.2005.13699
Document Type :
Working Paper
Full Text :
https://doi.org/10.3847/2041-8213/ab96cc
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