Multiwavelength monitoring of the gravitationally lensed blazar QSO B0218+357 between 2016 and 2020

de Palma, F; D'Ammando, F; Barnacka, A; Hada, K; Sahu, Dk; Lahteenmaki, A; Acciari, Va; Ansoldi, S; Antonelli, La; Arbet Engels, A; Artero, M; Asano, K; Baack, D; Babic, A; Baquero, A; Barres de Almeida, U; Barrio, Ja; Batkovic, I; Becerra Gonzalez, J; Bednarek, W; Bellizzi, L; Bernardini, E; Bernardos, M; Berti, A; Besenrieder, J; Bhattacharyya, W; Bigongiari, C; Biland, A; Blanch, O; Bokenkamp, H; Bonnoli, G; Bosnjak, Z; Busetto, G; Carosi, R; Ceribella, G; Cerruti, M; Chai, Y; Chilingarian, A; Cikota, S; Colak, Sm; Colombo, E; Contreras, Jl; Cortina, J; Covino, S; D'Amico, G; D'Elia, V; Da Vela, P; Dazzi, F; De Angelis, A; De Lotto, B; Delfino, M; Delgado, J; Delgado Mendez, C; Depaoli, D; Di Pierro, F; Di Venere, L; Do Souto Espineira, E; Dominis Prester, D; Donini, A; Dorner, D; Doro, M; Elsaesser, D; Fallah Ramazani, V; Fattorini, A; Fonseca, Mv; Font, L; Fruck, C; Fukami, S; Fukazawa, Y; Garcia Lopez, Rj; Garczarczyk, M; Gasparyan, S; Gaug, M; Giglietto, N; Giordano, F; Gliwny, P; Godinovic, N; Green, Jg; Green, D; Hadasch, D; Hahn, A; Heckmann, L; Herrera, J; Hoang, J; Hrupec, D; Hutten, M; Inada, T; Ishio, K; Iwamura, Y; Jimenez Martinez, I; Jormanainen, J; Jouvin, L; Karjalainen, M; Kerszberg, D; Kobayashi, Y; Kubo, H; Kushida, J; Lamastra, A; Lelas, D; Leone, F; Lindfors, E; Linhoff, L; Lombardi, S; Longo, F; Lopez-Coto, R; Lopez-Moya, M; Lopez-Oramas, A; Loporchio, S; Machado de Oliveira Fraga, B; Maggio, C; Majumdar, P; Makariev, M; Mallamaci, M; Maneva, G; Manganaro, M; Mannheim, K; Maraschi, L; Mariotti, M; Martinez, M; Mazin, D; Menchiari, S; Mender, S; Micanovic, S; Miceli, D; Miener, T; Miranda, Jm; Mirzoyan, R; Molina, E; Moralejo, A; Morcuende, D; Moreno, V; Moretti, E; Nakamori, T; Nava, L; Neustroev, V; Nigro, C; Nilsson, K; Nishijima, K; Noda, K; Nozaki, S; Ohtani, Y; Oka, T; Otero-Santos, J; Paiano, S; Palatiello, M; Paneque, D; Paoletti, R; Paredes, Jm; Pavletic, L; Penil, P; Persic, M; Pihet, M; Prada Moroni, Pg; Prandini, E; Priyadarshi, C; Puljak, I; Rhode, W; Ribo, M; Rico, J; Righi, C; Rugliancich, A; Sahakyan, N; Saito, T; Sakurai, S; Satalecka, K; Saturni, Fg; Schleicher, B; Schmidt, K; Schweizer, T; Sitarek, J; Snidaric, I; Sobczynska, D; Spolon, A; Stamerra, A; Striskovic, J; Strom, D; Strzys, M; Suda, Y; Suric, T; Takahashi, M; Takeishi, R; Tavecchio, F; Temnikov, P; Terzic, T; Teshima, M; Tosti, L; Truzzi, S; Tutone, A; Ubach, S; van Scherpenberg, J; Vanzo, G; Vazquez Acosta, M; Ventura, S; Verguilov, V; Vigorito, Cf; Vitale, V; Vovk, I; Will, M; Wunderlich, C; Yamamoto, T; Zaric, D

QSO B0218+357 is currently the only gravitationally lensed source from which very-high-energy (VHE, &100GeV) gamma-ray emission has been detected. We report the multiwavelength monitoring observations of this source performed between 2016 and 2020 in radio interferometry, optical, X-ray and gamma-ray bands. During the monitoring individual flares and hints of enhanced states in optical, X-ray and GeV bands have been observed, and the simultaneous data taken by the MAGIC telescopes allow us to search for the VHE gamma-ray emission associated with these events.

de Palma F., D'Ammando F., Barnacka A., Hada K., Sahu D.K., Lahteenmaki A., et al. (2022). Multiwavelength monitoring of the gravitationally lensed blazar QSO B0218+357 between 2016 and 2020. POS PROCEEDINGS OF SCIENCE, 395.