Albert A, Alfaro R, Alvarez C, Alvarez JD, Angeles Camacho JR, Arteaga-Velazquez JC, Arunbabu KP, Rojas DA, 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, De Leon C, Diaz Hernandez R, Dingus BL, Duvernois MA, Durocher M, Diaz-Velez JC, Ellsworth RW, Engel K, Espinoza C, Fan KL, Fernandez Alonso M, Fraija N, Galvan-Gamez A, Garcia-Gonzalez JA, Garfias F, Giacinti G, Gonzalez MM, Goodman JA, Harding JP, Hernandez S, Hona B, Huang D, Hueyotl-Zahuantitla F, Huntemeyer P, Iriarte A, Jardin-Blicq A, Joshi V, Kieda D, Lara A, Lee WH, Lee J, Leon Vargas H, Linnemann JT, Longinotti AL, Luis-Raya G, Lundeen J, Malone K, Marandon V, Martinez O, 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, Olivera-Nieto L, Omodei N, Peisker A, Araujo YP, Perez-Perez EG, Rho CD, Roh YJ, Rosa-Gonzalez D, Ruiz-Velasco E, Salazar H, Salesa Greus F, Sandoval A, Schneider M, Schoorlemmer H, Serna-Franco J, Smith AJ, Springer RW, Surajbali P, Tanner M, Tollefson K, Torres I, Torres-Escobedo R, Turner R, Urena-Mena F, Villasenor L, Weisgarber T, Willox E, Zhou H (2021)
Publication Type: Journal article
Publication year: 2021
Book Volume: 911
Article Number: L27
Journal Issue: 2
The highest-energy known gamma-ray sources are all located within 0.°5 of extremely powerful pulsars. This raises the question of whether ultra-high-energy (UHE; >56 TeV) gamma-ray emission is a universal feature expected near pulsars with a high spin-down power. Using four years of data from the High Altitude Water Cherenkov Gamma-Ray Observatory, we present a joint-likelihood analysis of 10 extremely powerful pulsars to search for subthreshold UHE gamma-ray emission correlated with these locations. We report a significant detection (>3σ), indicating that UHE gamma-ray emission is a generic feature of powerful pulsars. We discuss the emission mechanisms of the gamma rays and the implications of this result. The individual environment, such as the magnetic field and particle density in the surrounding area, appears to play a role in the amount of emission.
APA:
Albert, A., Alfaro, R., Alvarez, C., Alvarez, J.D., Angeles Camacho, J.R., Arteaga-Velazquez, J.C.,... Zhou, H. (2021). Evidence that Ultra-high-energy Gamma Rays Are a Universal Feature near Powerful Pulsars. Astrophysical Journal Letters, 911(2). https://doi.org/10.3847/2041-8213/abf4dc
MLA:
Albert, A., et al. "Evidence that Ultra-high-energy Gamma Rays Are a Universal Feature near Powerful Pulsars." Astrophysical Journal Letters 911.2 (2021).
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