HAWC J2227+610 and its association with G106.3+2.7, a new potential Galactic PeVatron
High Energy Astrophysical Phenomena
2020-06-18 v1
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.
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Cite
@article{arxiv.2005.13699,
title = {HAWC J2227+610 and its association with G106.3+2.7, a new potential Galactic PeVatron},
author = {A. Albert and R. Alfaro and C. Alvarez and J. R. Angeles Camacho and J. C. Arteaga-Velázquez and K. P. Arunbabu and D. Avila Rojas and H. A. Ayala Solares and V. Baghmanyan and E. Belmont-Moreno and S. Y. BenZvi and C. Brisbois and K. S. Caballero-Mora and T. Capistrán and A. Carramiñana and S. Casanova and U. Cotti and J. Cotzomi and S. Coutiño de León and E. De la Fuente and L. Diaz-Cruz and B. L. Dingus and M. A. DuVernois and J. C. Díaz-Vélez and R. W. Ellsworth and K. Engel and C. Espinoza and K. L. Fan and K. Fang and M. Fernández Alonso and H. Fleischhack and N. Fraija and A. Galván-Gámez and D. Garcia and J. A. García-González and F. Garfias and G. Giacinti and M. M. González and J. A. Goodman and J. P. Harding and S. Hernandez and J. Hinton and B. Hona and D. Huang and F. Hueyotl-Zahuantitla and P. Hüntemeyer and A. Iriarte and A. Jardin-Blicq and V. Joshi and W. H. Lee and H. León Vargas and J. T. Linnemann and A. L. Longinotti and G. Luis-Raya and J. Lundeen and K. Malone and S. S. Marinelli and O. Martinez and I. Martinez-Castellanos and J. Martínez-Castro and J. A. Matthews and P. Miranda-Romagnoli and J. A. Morales-Soto and E. Moreno and M. Mostafá and A. Nayerhoda and L. Nellen and M. Newbold and M. U. Nisa and R. Noriega-Papaqui and N. Omodei and A. Peisker and Y. Pérez Araujo and E. G. Pérez-Pérez and C. D. Rho and D. Rosa-González and E. Ruiz-Velasco and H. Salazar and F. Salesa Greus and A. Sandoval and M. Schneider and H. Schoorlemmer and J. Serna Franco and G. Sinnis and A. J. Smith and R. W. Springer and P. Surajbali and E. Tabachnick and M. Tanner and O. Tibolla and K. Tollefson and I. Torres and R. Torres-Escobedo and F. Ureña-Mena and L. Villaseñor and T. Weisgarber and A. Zepeda and H. Zhou and C. de León and J. D. Álvarez},
journal= {arXiv preprint arXiv:2005.13699},
year = {2020}
}
Comments
Accepted for publication by ApJL