Sitarek, JulianBecerra González, JosefaBuson, SaraDominis Prester, DijanaManganaro, MarinaMazin, DanielNilsson, KariNievas Rosillo, MireiaStamerra, AntonioTavecchio, FabrizioVovk, Ievgen2023-06-182023-06-182016-09-272075-443410.3390/galaxies4040031https://hdl.handle.net/20.500.14352/19154QSO B0218+357 is a gravitationally lensed blazar located at a cosmological redshift of 0.944. In July 2014 a GeV flare was observed by Fermi-LAT, triggering follow-up observations with the MAGIC telescopes at energies above 100 GeV. The MAGIC observations at the expected time of arrival of the trailing component resulted in the first detection of QSO B0218+357 in Very-High-Energy (VHE, >100 GeV) gamma rays. We report here the observed multiwavelength emission during the 2014 flare.engAtribución 3.0 Españajournal articlehttps://doi.org/10.3390/galaxies4040031https://www.mdpi.com/2075-4434/4/4/31open accessgamma rays: galaxiesgravitational lensing: stronggalaxies: jetsradiation mechanisms: non-thermalgalaxies: QSO B0218+357Astronomía (Física)Óptica (Física)2209.19 Óptica Física