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

U. Abeysekara, A.; Albert, A.; Alfaro, R.; Alvarez, 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.; Belmont-Moreno, E.; Y. 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.; Coutiño 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.; González Muñoz, A.; M. González, M.; A. Goodman, J.; Hampel-Arias, Z.; P. Harding, J.; Hernández, S.; Hernández-Almada, A.; Hinton, J.; Hona, B.; M. Hui, C.; Hüntemeyer, P.; Iriarte, A.; Jardin-Blicq, A.; Joshi, V.; Kaufmann, S.; Kieda, D.; Lara, A.; J. Lauer, R.; H. Lee, W.; Lennarz, D.; León Vargas, H.; T. Linnemann, J.; L. Longinotti, A.; Luis Raya, G.; Luna-García, R.; López-Coto, R.; Malone, K.; S. Marinelli, S.; Martinez, O.; Martinez-Castellanos, I.; Martínez-Castro, J.; Martínez-Huerta, H.; A. Matthews, J.; Miranda-Romagnoli, P.; Moreno, E.; Mostafá, M.; Nellen, L.; Newbold, M.; U. Nisa, M.; Noriega-Papaqui, R.; Pelayo, R.; Pretz, J.; G. Pérez-Pérez, E.; Ren, Z.; D. Rho, C.; Rivière, C.; Rosa-González, D.; Rosenberg, M.; Ruiz-Velasco, E.; Salazar, H.; Salesa Greus, F.; Sandoval, A.; Schneider, M.; Schoorlemmer, H.; Sinnis, G.; J. Smith, A.; W. Springer, R.; Surajbali, P.; Taboada, I.; Tibolla, O.; Tollefson, K.; Torres, I.; N. Ukwatta, T.; Vianello, G.; Weisgarber, T.; Westerhoff, S.; G. Wisher, I.; Wood, J.; Yapici, T.; Yodh, G.; W. Younk, P.; Zepeda, A.; Zhou, H.; Guo, F.; Hahn, J.; Li, H.; Zhang, H.

doi:10.1126/science.aan4880

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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

Exotic origin for cosmic positrons Several cosmic-ray detectors have found more positrons arriving at Earth than expected. Some researchers interpret this as a signature of exotic physics, such as the annihilation of dark matter particles. Others prefer a more mundane explanation that involves posit...

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