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

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A4 Artikkeli konferenssijulkaisussa

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en

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POS Proceedings of Science, Volume 395

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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.

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Funding Information: We acknowledge the support from the agencies and organizations listed here: https://magic.mpp.mpg.de/acknowledgments_ICRC2021 The Fermi-LAT Collaboration acknowledges support for LAT development, operation and data analysis from NASA and DOE (United States), CEA/Irfu and IN2P3/CNRS (France), ASI and INFN (Italy), MEXT, KEK, and JAXA (Japan), and the K.A. Wallenberg Foundation, the Swedish Research Council and the National Space Board (Sweden). Science analysis support in the operations phase from INAF (Italy) and CNES (France) is also gratefully acknowledged. This work performed in part under DOE Contract DE-AC02-76SF00515. Funding Information: We acknowledge the support from the agencies and organizations listed here: https:// magic.mpp.mpg.de/acknowledgments_ICRC2021 The Fermi-LAT Collaboration acknowledges support for LAT development, operation and data analysis from NASA and DOE (United States), CEA/Irfu and IN2P3/CNRS (France), ASI and INFN (Italy), MEXT, KEK, and JAXA (Japan), and the K.A. Wallenberg Foundation, the Swedish Research Council and the National Space Board (Sweden). Science analysis support in the operations phase from INAF (Italy) and CNES (France) is also gratefully acknowledged. This work performed in part under DOE Contract DE-AC02-76SF00515. Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0)

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Sitarek, J, Fallah Ramazani, V, Lamastra, A, Manganaro, M, Nilsson, K, Longo, F, de Palma, F, MAGIC Collaboration & Fermi Large Area Telescope Collaboration 2022, 'Multiwavelength monitoring of the gravitationally lensed blazar QSO B0218+357 between 2016 and 2020', POS Proceedings of Science, vol. 395, 819. < https://pos.sissa.it/395/819/pdf >