The Blazar TXS 0506+056 Associated with a High-energy Neutrino: Insights into Extragalactic Jets and Cosmic-Ray Acceleration (CROSBI ID 255278)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Ansoldi, S. ; Antonelli, L. A. ; Arcaro, C. ; Baack, D. ; Babić, Ana ; Banerjee, B. ; Bangale, P. ; Barres de Almeida, U. ; Barrio, J. A. ; González, J. Becerra ; Bednarek, W. ; Bernardini, E. ; Berse, R. Ch. ; Berti, A. ; Besenrieder, J. ; Bhattacharyya, W. ; Bigongiari, C. ; Biland, A. ; Blanch, O. ; Bonnoli, G. ; Carosi, R. ; Ceribella, G. ; Chatterjee, A. ; Colak, S. M. ; Colin, P. ; Colombo, E. ; Contreras, J. L. ; Cortina, J. ; Covino, S. ; Cumani, P. ; D’Elia, V. ; Vela, P. Da ; Dazzi, F. ; Angelis, A. De ; Lotto, B. De ; Delfino, M. ; Delgado, J. ; Pierro, F. Di ; Domínguez, A. ; Prester Dominis, Dijana ; Dorner, D. ; Doro, M. ; Einecke, S. ; Elsaesser, D. ; Ramazani, V. Fallah ; Fattorini, A. ; Fernández-Barral, A. ; Ferrara, G. ; Fidalgo, D. ; Foffano, L. ; Fonseca, M. V. ; Font, L. ; Fruck, C. ; Gallozzi, S. ; López, R. J. García ; Garczarczyk, M. ; Gaug, M. ; Giammaria, P. ; Godinović, Nikola ; Guberman, D. ; Hadasch, D. ; Hahn, A. ; Hassan, T. ; Hayashida, M. ; Herrera, J. ; Hoang, J. ; Hrupec, Dario ; Inoue, S. ; Ishio, K. ; Iwamura, Y. ; Konno, Y. ; Kubo, H. ; Kushida, J. ; Lamastra, A. ; Lelas, Damir ; Leone, F. ; Lindfors, E. ; Lombardi, S. ; Longo, F. ; López, M. ; Maggio, C. ; Majumdar, P. ; Makariev, M. ; Maneva, G. ; Manganaro, M. ; Mannheim, K. ; Maraschi, L. ; Mariotti, M. ; Martínez, M. ; Masuda, S. ; Mazin, D. ; Mielke, K. ; Minev, M. ; Miranda, J. M. ; Mirzoyan, R. ; Moralejo, A. ; Moreno, V. ; Moretti, E. ; Neustroev, V. ; Niedzwiecki, A. ; Rosillo, M. Nievas ; Nigro, C. ; Nilsson, K. ; Ninci, D. ; Nishijima, K. ; Noda, K. ; Nogués, L. ; Paiano, S. ; Palacio, J. ; Paneque, D. ; Paoletti, R. ; Paredes, J. M. ; Pedaletti, G. ; Peñil, P. ; Peresano, M. ; Persic, M. ; Pfrang, K. ; Moroni, P. G. Prada ; Prandini, E. ; Puljak, Ivica ; Garcia, J. R. ; Rhode, W. ; Ribó, M. ; Rico, J. ; Righi, C. ; Rugliancich, A. ; Saha, L. ; Saito, T. ; Satalecka, K. ; Schweizer, T. ; Sitarek, J. ; Šnidarić, Iva ; Sobczynska, D. ; Stamerra, A. ; Strzys, M. ; Surić, Tihomir ; Tavecchio, F. ; Temnikov, P. ; Terzić, Tomislav ; Teshima, M. ; Torres-Albá, N. ; Tsujimoto, S. ; Vanzo, G. ; Acosta, M. Vazquez ; Vovk, I. ; Ward, J. E. ; Will, M. ; Zarić, Darko ; Cerruti, Matteo
MAGIC Collaboration
engleski
The Blazar TXS 0506+056 Associated with a High-energy Neutrino: Insights into Extragalactic Jets and Cosmic-Ray Acceleration
A neutrino with energy of ∼290 TeV, IceCube-170922A, was detected in coincidence with the BL Lac object TXS 0506+056 during enhanced gamma-ray activity, with chance coincidence being rejected at ∼ 3σ level. We monitored the object in the very-high-energy (VHE) band with the MAGIC telescopes for ∼41 hours from 1.3 to 40.4 days after the neutrino detection. Day-timescale variability is clearly resolved. We interpret the quasi-simultaneous neutrino and broadband electromagnetic observations with a novel one-zone lepto-hadronic model, based on interactions of electrons and protons co-accelerated in the jet with external photons originating from a slow-moving plasma sheath surrounding the faster jet spine. We can reproduce the multiwavelength spectra of TXS 0506+056 with neutrino rate and energy compatible with IceCube-170922A, and with plausible values for the jet power of ∼ 10^45 − 4×10^46 erg s^{; ; ; ; ; −1}; ; ; ; ; . The steep spectrum observed by MAGIC is concordant with internal γγ absorption above ∼100 GeV entailed by photohadronic production of a ∼290 TeV neutrino, corroborating a genuine connection between the multi-messenger signals. In contrast to previous predictions of predominantly hadronic emission from neutrino sources, the gamma-rays can be mostly ascribed to inverse Compton up-scattering of external photons by accelerated electrons. The X-ray and VHE bands provide crucial constraints on the emission from both accelerated electrons and protons. We infer that the maximum energy of protons in the jet co-moving frame can be in the range ∼ 10^14 to 10^18 eV.
BL Lacertae objects: individual (TXS 0506+056) ; cosmic rays ; galaxies: jets ; gamma rays: galaxies ; neutrinos ; radiation mechanisms: non-thermal
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Podaci o izdanju
863 (1)
2018.
L10
10
objavljeno
0004-637X
1538-4357
10.3847/2041-8213/aad083
