高能伽马射线全天空监测器（HAWC）探测到多个发射高于56 TeV的银河系源。

Multiple Galactic Sources with Emission Above 56 TeV Detected by HAWC.

作者信息

Abeysekara A U, Albert A, Alfaro R, Angeles Camacho J R, Arteaga-Velázquez J C, Arunbabu K P, Avila Rojas D, Ayala Solares H A, Baghmanyan V, Belmont-Moreno E, BenZvi S Y, Brisbois C, Caballero-Mora K S, Capistrán T, Carramiñana A, Casanova S, Cotti U, Cotzomi J, Coutiño de León S, De la Fuente E, de León C, Dichiara S, Dingus B L, DuVernois M A, Díaz-Vélez J C, Ellsworth R W, Engel K, Espinoza C, Fleischhack H, Fraija N, Galván-Gámez A, Garcia D, García-González J A, Garfias F, 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, Kaufmann S, Kieda D, Lara A, Lee W H, León Vargas H, Linnemann J T, Longinotti A L, Luis-Raya G, Lundeen J, López-Coto R, Malone K, Marinelli S S, Martinez O, Martinez-Castellanos I, Martínez-Castro J, Martínez-Huerta H, 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, Peisker A, Pérez-Pérez E G, Pretz J, Ren Z, Rho C D, Rivière C, Rosa-González D, Rosenberg M, Ruiz-Velasco E, Salesa Greus F, Sandoval A, Schneider M, Schoorlemmer H, Sinnis G, Smith A J, Springer R W, Surajbali P, Tabachnick E, Tanner M, Tibolla O, Tollefson K, Torres I, Torres-Escobedo R, Villaseñor L, Weisgarber T, Wood J, Yapici T, Zhang H, Zhou H

机构信息

Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah, USA.

Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA.

出版信息

Phys Rev Lett. 2020 Jan 17;124(2):021102. doi: 10.1103/PhysRevLett.124.021102.

DOI:10.1103/PhysRevLett.124.021102

PMID:32004015

Abstract

We present the first catalog of gamma-ray sources emitting above 56 and 100 TeV with data from the High Altitude Water Cherenkov Observatory, a wide field-of-view observatory capable of detecting gamma rays up to a few hundred TeV. Nine sources are observed above 56 TeV, all of which are likely galactic in origin. Three sources continue emitting past 100 TeV, making this the highest-energy gamma-ray source catalog to date. We report the integral flux of each of these objects. We also report spectra for three highest-energy sources and discuss the possibility that they are PeVatrons.

摘要

我们利用高海拔水切伦科夫天文台的数据，展示了首个能量高于56 TeV和100 TeV的伽马射线源目录。该天文台具有宽广的视场，能够探测高达数百TeV的伽马射线。在56 TeV以上观测到了9个源，它们都可能起源于银河系。有3个源在超过100 TeV后仍在发射，这使得该目录成为迄今为止能量最高的伽马射线源目录。我们报告了这些天体各自的积分通量。我们还报告了三个能量最高的源的光谱，并讨论了它们是拍电子伏伽马射线源的可能性。