Broadband characterisation of the very intense TeV flares of the blazar 1ES 1959+650 in 2016 (CROSBI ID 278277)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
MAGIC Collaboration ; Acciari, V. A. ; Ansoldi, S. ; Antonelli, L. A. ; Arbet Engels, A. ; Baack, D. ; Babić, A. ; Banerjee, B. ; Barres de Almeida, U. ; Barrio, J. A. ; Becerra González, J. ; Bednarek, W. ; Bellizzi, L. ; Bernardini, E. ; Berti, A. ; Besenrieder, J. ; Bhattacharyya, W. ; Bigongiari, C. ; Biland, A. ; Blanch, O. ; Bonnoli, G. ; Bosnjak, Z. ; Busetto, G. ; Carosi, R. ; Ceribella, G. ; Chai, Y. ; Cikota, S. ; Colak, S. M. ; Colin, U. ; Colombo, E. ; Contreras, J. L. ; Cortina, J. ; Covino, S. ; D’Elia, V. ; Da Vela, P. ; Dazzi, F. ; De Angelis, A. ; De Lotto, B. ; Delfino, M. ; Delgado, J. ; Di Pierro, F. ; Do Souto Espiñeira, E. ; Dominis Prester, D. ; Donini, A. ; Dorner, D. ; Doro, M. ; Elsaesser, D. ; Fallah Ramazani, V. ; Fattorini, A. ; Fernández-Barral, A. ; Ferrara, G. ; Fidalgo, D. ; Foffano, L. ; Fonseca, M. V. ; Font, L. ; Fruck, C. ; Fukami, S. ; Gallozzi, S. ; García López, R. J. ; Garczarczyk, M. ; Gasparyan, S. ; Gaug, M. ; Godinović, N. ; Green, D. ; Guberman, D. ; Hadasch, D. ; Hahn, A. ; Herrera, J. ; Hoang, J. ; Hrupec, D. ; Inada, T. ; Inoue, S. ; Ishio, K. ; Iwamura, Y. ; Jouvin, L. ; Kubo, H. ; Kushida, J. ; Lamastra, A. ; Lelas, D. ; Leone, F. ; Lindfors, E. ; Lombardi, S. ; Longo, F. ; López, M. ; López-Coto, R. ; López-Oramas, A. ; Machado de Oliveira Fraga, B. ; Maggio, C. ; Majumdar, P. ; Makariev, M. ; Mallamaci, M. ; Maneva, G. ; Manganaro, M. ; Mannheim, K. ; Maraschi, L. ; Mariotti, M. ; Martínez, M. ; Masuda, S. ; Mazin, D. ; Mićanović, S. ; Miceli, D. ; Minev, M. ; Miranda, J. M. ; Mirzoyan, R. ; Molina, E. ; Moralejo, A. ; Morcuende, D. ; Moreno, V. ; Moretti, E. ; Munar-Adrover, P. ; Neustroev, V. ; Niedzwiecki, A. ; Nigro, C. ; Nilsson, K. ; Ninci, D. ; Nishijima, K. ; Noda, K. ; Nogués, L. ; Nöthe, M. ; Nozaki, S. ; Paiano, S. ; Palacio, J. ; Palatiello, M. ; Paneque, D. ; Paoletti, R. ; Paredes, J. M. ; Peñil, P. ; Peresano, M. ; Persic, M. ; Prada Moroni, P. G. ; Prandini, E. ; Puljak, I. ; Rhode, W. ; Ribó, M. ; Rico, J. ; Righi, C. ; Rugliancich, A. ; Saha, L. ; Sahakyan, N. ; Saito, T. ; Sakurai, S. ; Satalecka, K. ; Schweizer, T. ; Sitarek, J. ; Šnidarić, I. ; Sobczynska, D. ; Somero, A. ; Stamerra, A. ; Strom, D. ; Strzys, M. ; Surić, T. ; Takahashi, M. ; Tavecchio, F. ; Temnikov, P. ; Terzić, T. ; Teshima, M. ; Torres-Albà, N. ; Tsujimoto, S. ; van Scherpenberg, J. ; Vanzo, G. ; Vazquez Acosta, M. ; Vovk, I. ; Will, M. ; Zarić, D. ; Hayashida, M. ; Fermi-LAT Collaboration
MAGIC Collaboration
engleski
Broadband characterisation of the very intense TeV flares of the blazar 1ES 1959+650 in 2016
1ES 1959+650 is a bright TeV high-frequency- peaked BL Lac object exhibiting interesting features like "orphan" TeV flares and a broad emission in the high-energy regime, that are difficult to interpret using conventional one- zone Synchrotron Self-Compton (SSC) scenarios. We report the results from the Major Atmospheric Gamma Imaging Cherenkov (MAGIC) observations in 2016 along with the multi-wavelength data from the Fermi Large Area Telescope (LAT) and Swift instruments. MAGIC observed 1ES 1959+650 with different emission levels in the very-high-energy (VHE, E >100 GeV) gamma-ray band during 2016. In the long-term data, the X-ray spectrum becomes harder with increasing flux and a hint of a similar trend is also visible in the VHE band. An exceptionally high VHE flux reaching ~ 3 times the Crab Nebula flux was measured by MAGIC on the 13th, 14th of June and 1st July 2016 (the highest flux observed since 2002). During these flares, the high-energy peak of the spectral energy distribution (SED) lies in the VHE domain and extends up to several TeV. The spectrum in the gamma-ray (both Fermi-LAT and VHE bands) and the X-ray bands are quite hard. On 13th June and 1st July 2016, the source showed rapid variations of the VHE flux within timescales of less than an hour. A simple one-zone SSC model can describe the data during the flares requiring moderate to high values of the Doppler factors (>=30-60). Alternatively, the high-energy peak of the SED can be explained by a purely hadronic model attributed to proton-synchrotron radiation with jet power L_{; ; jet}; ; ~10^{; ; 46}; ; erg/s and under high values of the magnetic field strength (~100 G) and maximum proton energy (~few EeV). Mixed lepto-hadronic models require super-Eddington values of the jet power. We conclude that it is difficult to get detectable neutrino emission from the source during the extreme VHE flaring period of 2016.
astroparticle physics ; BL Lacertae objects: individual: 1ES 1959+650 ; galaxies: jets ; methods: observational ; radiation mechanisms: non-thermal ; neutrinos
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o izdanju
638
2020.
A14
16
objavljeno
0004-6361
1432-0746
10.1051/0004-6361/201935450
