RT Journal Article T1 Broad Band Observations of Gravitationally Lensed Blazar during a Gamma-Ray Outburst A1 Sitarek, Julian A1 Becerra González, Josefa A1 Buson, Sara A1 Dominis Prester, Dijana A1 Manganaro, Marina A1 Mazin, Daniel A1 Nilsson, Kari A1 Nievas Rosillo, Mireia A1 Stamerra, Antonio A1 Tavecchio, Fabrizio A1 Vovk, Ievgen AB QSO 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. PB MDPI SN 2075-4434 YR 2016 FD 2016-09-27 LK https://hdl.handle.net/20.500.14352/19154 UL https://hdl.handle.net/20.500.14352/19154 LA eng NO Ministerio de Economía y Competitividad (MINECO) NO Centro de Excelencia Severo Ochoa NO CSIC/Programa Consolider-Ingenio 2010 NO Academia de Finlandia NO Fundación Científica Croata NO Universidad de Rijeka NO DFG Collaborative Research Centers NO Polish MNiSzW DS Docta Complutense RD 7 may 2024