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En 1967, la estudiante de doctorado Jocelyn Bell Burnell, observ o por primera vez la se~nal procedente de un p ulsar. Estos objetos estelares han sido desde entonces intensamente estudiados a todas las longitudes de onda. Debido a su intenso ca[...]texto impreso
Barrio Uña, Juan Abel ; Bonnefoy, Simon ; Contreras González, José Luis ; Domínguez Díaz, Alberto ; Fidaldo, David Friedrich Contreras ; Fonseca González, Mª Victoria ; López Moya, Marcos ; Nievas Rosillo, Mireia ; Ahnen, M.L. ; Ansoldi, S. ; otros, ... | IOP publishing ltd | 2017-09Spontaneous breaking of Lorentz symmetry at energies on the order of the Planck energy or lower is predicted by many quantum gravity theories, implying non-trivial dispersion relations for the photon in vacuum. Consequently, gamma-rays of differ[...]texto impreso
texto impreso
Barrio Uña, Juan Abel ; Bonnefoy, Simon ; Contreras González, José Luis ; Domínguez Díaz, Alberto ; Fonseca González, Mª Victoria ; Fidalgo, David ; López Moya, Marcos ; Nievas Rosillo, Mireia ; Barres de Almeida, U. ; Barrio, J.A. ; otros, ... | Oxford University Press. | 2017-10The microquasar V404 Cygni underwent a series of outbursts in 2015, June 15-31, during which its flux in hard X-rays (20-40 keV) reached about 40 times the Crab nebula flux. Because of the exceptional interest of the flaring activity from this s[...]texto impreso
Barrio Uña, Juan Abel ; Bonnefoy, Simon ; Contreras González, José Luis ; Domínguez Díaz, Alberto ; Fidalgo, David Friedrich Carreto ; Fonseca González, Mª Victoria ; López Moya, Marcos ; Nievas Rosillo, Mireia ; Ahnen, L.M. ; Ansoldi, S. ; otros, ... | Oxford University Press. | 2017-10Spontaneous breaking of Lorentz symmetry at energies on the order of the Planck energy or lower is predicted by many quantum gravity theories, implying non-trivial dispersion relations for the photon in vacuum. Consequently, gamma-rays of differ[...]
