First HAWC Observations of the Sun Constrain Steady TeV Gamma-Ray Emission

• Main Authors: Albert, A, Alfaro, R, Alvarez, C, Arceo, R, Arteaga-Velázquez, J. C, Rojas, D. Avila, Solares, H. A. Ayala, Belmont-Moreno, E, BenZvi, S. Y, Brisbois, C, Caballero-Mora, K. S, Capistràn, T, Carramiñana, A, Casanova, S, Castillo, M, Cotzomi, J, de León, S. Coutiño, De León, C, De la Fuente, E, Dichiara, S, Dingus, B. L, DuVernois, M. A, Díaz-Vélez, J. C, Engel, K, Enríquez-Rivera, O, Espinoza, C, Fleischhack, H, Fraija, N, García-González, J. A, Garfias, F, González, M. M, Goodman, J. A, Hampel-Arias, Z, Harding, J. P, Hernandez, S, Hona, B, Hueyotl-Zahuantitla, F, Hüntemeyer, P, Iriarte, A, Jardin-Blicq, A, Joshi, V, Kaufmann, S, Vargas, H. León, Luis-Raya, G, Lundeen, J, López-Coto, R, Malone, K, Marinelli, S. S, Martinez, O, Martinez-Castellanos, I, Martínez-Castro, J, Miranda-Romagnoli, P, Moreno, E, Mostafá, M, Nayerhoda, A, Nellen, L, Newbold, M, Nisa, M. U, Noriega-Papaqui, R, Pretz, J, Pérez-Pérez, E. G, Ren, Z, Rho, C. D, Rivière, C, Rosa-González, D, Rosenberg, M, Ruiz-Velasco, E, Salazar, H, Greus, F. Salesa, Sandoval, A, Schneider, M, Schoorlemmer, H, Arroyo, M. Seglar, Sinnis, G, Smith, A. J, Surajbali, P, Taboada, I, Tibolla, O, Tollefson, K, Torres, I, Villaseñor, L, Weisgarber, T, Westerhoff, S, Wisher, I. G, Wood, J, Yapici, T, Zepeda, A, Zhou, H, Álvarez, J. D, Beacom, J. F, Leane, R. K, Linden, T, Ng, K. C. Y, Peter, A. H. G, Zhou, B
• Format: Journal Article
• Language: English
• Published: 16.08.2018
• Subjects: Physics - High Energy Astrophysical Phenomena; Physics - High Energy Physics - Phenomenology; Physics - Solar and Stellar Astrophysics

Phys. Rev. D 98, 123011 (2018) Steady gamma-ray emission up to at least 200 GeV has been detected from the solar disk in the Fermi-LAT data, with the brightest, hardest emission occurring during solar minimum. The likely cause is hadronic cosmic rays undergoing collisions in the Sun's atmospher...