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

ABSTRACT We report multiwavelength observations of the gravitationally lensed blazar QSO B0218+357 in 2016–2020. Optical, X-ray, and GeV flares were detected. The contemporaneous MAGIC observations do not show significant very high energy (VHE; ≳100 GeV) gamma-ray emission. The lack of enhancement i...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2022-02, Vol.510 (2), p.2344-2362
Hauptverfasser:	Acciari, V A, Ansoldi, S, Antonelli, L A, Arbet Engels, A, Artero, M, Baack, D, Baquero, A, Barres de Almeida, U, Barrio, J A, Becerra González, J, Bellizzi, L, Bernardos, M, Berti, A, Biland, A, Bošnjak, Ž, Carosi, R, Chilingarian, A, Colak, S M, Colombo, E, Cortina, J, D’Elia, V, Dazzi, F, Delgado, J, Delgado Mendez, C, Depaoli, D, Di Pierro, F, Di Venere, L, Donini, A, Doro, M, Elsaesser, D, Fruck, C, Fukami, S, García López, R J, Garczarczyk, M, Gasparyan, S, Gaug, M, Gliwny, P, Heckmann, L, Herrera, J, Hrupec, D, Hütten, M, Ishio, K, Iwamura, Y, Jiménez, I, Kajiwara, Y, Kerszberg, D, Kobayashi, Y, Kushida, J, Lamastra, A, Leone, F, Lindfors, E, Lombardi, S, Longo, F, López-Moya, M, López-Oramas, A, Maggio, C, Majumdar, P, Makariev, M, Manganaro, M, Maraschi, L, Menchiari, S, Miener, T, Minev, M, Moretti, E, Nigro, C, Nilsson, K, Nishijima, K, Ohtani, Y, Otero-Santos, J, Pavletić, L, Persic, M, Prandini, E, Priyadarshi, C, Saha, L, Sahakyan, N, Satalecka, K, Saturni, F G, Schleicher, B, Spolon, A, Stamerra, A, Strom, D, Surić, T, Takahashi, M, Temnikov, P, Tutone, A, van Scherpenberg, J, Vanzo, G, Vazquez Acosta, M, Vigorito, C F, Vovk, I, Wunderlich, C, Zarić, D, Sahu, D K, Reeves, R, Pearson, T J, Lähteenmäki, A, Tornikoski, M, Tammi, J, Suutarinen, S, Niinuma, K
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Sprache:	eng
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Zusammenfassung:	ABSTRACT We report multiwavelength observations of the gravitationally lensed blazar QSO B0218+357 in 2016–2020. Optical, X-ray, and GeV flares were detected. The contemporaneous MAGIC observations do not show significant very high energy (VHE; ≳100 GeV) gamma-ray emission. The lack of enhancement in radio emission measured by The Owens Valley Radio Observatory indicates the multizone nature of the emission from this object. We constrain the VHE duty cycle of the source to be
ISSN:	0035-8711 1365-2966
DOI:	10.1093/mnras/stab3454