Extended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth

U. Abeysekara, A.; Albert, A.; Alfaro, R.; Álvarez, C.; D. Álvarez, J.; Arceo, R.; C. Arteaga‐Velázquez, J.; Avila Rojas, D.; A. Ayala Solares, H.; S. Barber, A.; Bautista-Elivar, N.; Becerril, A.; Moreno, E.; BenZvi, S.; Berley, D.; Bernal, A.; Braun, J.; Brisbois, C.; S. Caballero‐Mora, K.; Capistrán, T.; Carramiñana, A.; Casanova, S.; Castillo, M.; Cotti, U.; Cotzomi, J.; Coutinõ de León, S.; de León, C.; De la Fuente, E.; L. Dingus, B.; A. DuVernois, M.; C. Díaz–Vélez, J.; W. Ellsworth, R.; Engel, K.; Enríquez-Rivera, O.; W. Fiorino, D.; Fraija, N.; A. García-González, J.; Garfias, F.; Gerhardt, M.; Muñoz, Alfonso; M. González, M.; A. Goodman, J.; Hampel-Arias, Z.; P. Harding, J.; Hernández, S.; Hernández-Almada, A.; A. Hinton, J.; Hona, B.; M. Hui, C.; Hüntemeyer, P.; Iriarte, A.; Jardin-Blicq, A.; Joshi, Vikas; Kaufmann, S.; Kieda, D.; Lara, A.; Lauer, R.; H. Lee, William; Lennarz, D.; León Vargas, H.; Linnemann, J.; L. Longinotti, A.; Luis-Raya, G.; Luna-García, R.; López-Coto, R.; Malone, K.; S. Marinelli, S.; Martı́nez, O.; Martínez-Castellanos, I.; Martínez-Castro, J.; Martínez-Huerta, H.; Matthews, J.; Miranda-Romagnoli, P.; Moreno, E.; Mostafá, M.; Nellen, L.; Newbold, M.; U. Nisa, M.; Noriega-Papaqui, R.; Pelayo, Rodrigo; Pretz, J.; G. Pérez‐Pérez, E.; Ren, Zhixiang; Dong Rho, Chang; Rivière, C.; Rosa‐González, D.; Rosenberg, M.; Ruiz-Velasco, E.; Salazar, H.; Salesa Greus, F.; Sandoval, A.; Schneider, M.; Schoorlemmer, Harm; Sinnis, G.; J. Smith, A.; W. Springer, R.; Surajbali, P.; Taboada, I.; Tibolla, O.; Tollefson, Kirsten; Torres, I.; N. Ukwatta, T.; Vianello, G.; Weisgarber, T.; Westerhoff, S.; G. Wisher, I.; Wood, J.; Yapici, T.; Yodh, G.; Younk, P.; Zepeda, A.; Zhou, H.; Guo, Fan; Hahn, Joachim; Li, Hui; C. Zhang, H.

doi:10.1126/science.aan4880

Public

Extended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth

Published in Science • Nov 17, 2017

Authors:

A. U. Abeysekara

A. Albert

R. Alfaro

Abstract

The unexpectedly high flux of cosmic-ray positrons detected at Earth may originate from nearby astrophysical sources, dark matter, or unknown processes of cosmic-ray secondary production. We report the detection, using the High-Altitude Water Cherenkov Observatory (HAWC), of extended tera-electron v...

Subject

Physics

Cosmic ray

Cherenkov radiation

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