Home > Publications database > Time-dependent modelling of short-term variability in the TeV-blazar VER J0521+211 during the major flare in 2020 > print

001     643441
005     20260113122604.0
024 7 _ |2 INSPIRETeX
|a MAGIC:2024gbt
024 7 _ |2 inspire
|a inspire:2862016
024 7 _ |2 arXiv
|a arXiv:2412.15836
037 _ _ |a PUBDB-2026-00202
041 _ _ |a English
082 _ _ |a 520
088 _ _ |2 arXiv
|a arXiv:2412.15836
100 1 _ |a Abe, S.
|b 0
245 _ _ |a Time-dependent modelling of short-term variability in the TeV-blazar VER J0521+211 during the major flare in 2020
260 _ _ |c 2025
336 7 _ |0 PUB:(DE-HGF)25
|2 PUB:(DE-HGF)
|a Preprint
|b preprint
|m preprint
|s 1768221726_2487191
336 7 _ |2 ORCID
|a WORKING_PAPER
336 7 _ |0 28
|2 EndNote
|a Electronic Article
336 7 _ |2 DRIVER
|a preprint
336 7 _ |2 BibTeX
|a ARTICLE
336 7 _ |2 DataCite
|a Output Types/Working Paper
500 _ _ |a A&A 694, A308 (2025). Accepted for publication in A&A
520 _ _ |a The BL Lacertae object VER J0521+211 underwent a notable flaring episode in February 2020. A short-term monitoring campaign, led by the MAGIC (Major Atmospheric Gamma Imaging Cherenkov) collaboration, covering a wide energy range from radio to very high-energy (VHE, 100 GeV < E < 100 TeV) gamma rays was organised to study its evolution. These observations resulted in a consistent detection of the source over six consecutive nights in the VHE gamma-ray domain. Combining these nightly observations with an extensive set of multi-wavelength data made modelling of the blazar’s spectral energy distribution (SED) possible during the flare. This modelling was performed with a focus on two plausible emission mechanisms: (i) a leptonic two-zone synchrotron-self-Compton scenario, and (ii) a lepto-hadronic one-zone scenario. Both models effectively replicated the observed SED from radio to the VHE gamma-ray band. Furthermore, by introducing a set of evolving parameters, both models were successful in reproducing the evolution of the fluxes measured in different bands throughout the observing campaign. Notably, the lepto-hadronic model predicts enhanced photon and neutrino fluxes at ultra-high energies (E > 100 TeV). While the photon component, generated via decay of neutral pions, is not directly observable as it is subject to intense pair production (and therefore extinction) through interactions with the cosmic microwave background photons, neutrino detectors (e.g. IceCube) can probe the predicted neutrino component. Finally, the analysis of the gamma-ray spectra, observed by MAGIC and the Fermi-LAT telescopes, yielded a conservative 95% confidence upper limit of z ≤ 0.244 for the redshift of this blazar.Key words: galaxies: active / BL Lacertae objects: individual: VER J0521+211 / gamma rays: galaxies⋆⋆ Eustace Specialist in Astronomy.
536 _ _ |0 G:(DE-HGF)POF4-613
|a 613 - Matter and Radiation from the Universe (POF4-613)
|c POF4-613
|f POF IV
|x 0
536 _ _ |0 G:(GEPRIS)390783311
|a DFG project G:(GEPRIS)390783311 - EXC 2094: ORIGINS: Vom Ursprung des Universums bis zu den ersten Bausteinen des Lebens (390783311)
|c 390783311
|x 1
588 _ _ |a Dataset connected to CrossRef, INSPIRE, Journals: bib-pubdb1.desy.de
693 _ _ |0 EXP:(DE-H253)MAGIC-20170101
|5 EXP:(DE-H253)MAGIC-20170101
|e Major Atmospheric Gamma Imaging Cherenkov
|x 0
700 1 _ |0 0000-0001-8215-4377
|a Abhir, J.
|b 1
700 1 _ |0 0009-0005-5239-7905
|a Abhishek, A.
|b 2
700 1 _ |a Acciari, V. A.
|b 3
700 1 _ |0 0000-0001-8816-4920
|a Aguasca-Cabot, A.
|b 4
700 1 _ |0 0000-0002-3777-6182
|a Agudo, I.
|b 5
700 1 _ |0 0009-0004-9368-0515
|a Aniello, T.
|b 6
700 1 _ |a Ansoldi, S.
|b 7
700 1 _ |a Antonelli, L. A.
|b 8
700 1 _ |a Engels, A. Arbet
|b 9
700 1 _ |0 0000-0002-1998-9707
|a Arcaro, C.
|b 10
700 1 _ |a Artero, M.
|b 11
700 1 _ |a Asano, K.
|b 12
700 1 _ |0 0000-0002-2311-4460
|a Baack, D.
|b 13
700 1 _ |a Babić, A.
|b 14
700 1 _ |0 0000-0001-7909-588X
|a de Almeida, U. Barres
|b 15
700 1 _ |0 0000-0002-0965-0259
|a Barrio, J. A.
|b 16
700 1 _ |0 0000-0002-1209-2542
|a Batković, I.
|b 17
700 1 _ |a Bautista, A.
|b 18
700 1 _ |a Baxter, J.
|b 19
700 1 _ |a González, J. Becerra
|b 20
700 1 _ |0 0000-0003-0605-108X
|a Bednarek, W.
|b 21
700 1 _ |a Bernardini, E.
|b 22
700 1 _ |0 0000-0002-8108-7552
|a Bernete, J.
|b 23
700 1 _ |a Berti, A.
|b 24
700 1 _ |a Besenrieder, J.
|b 25
700 1 _ |0 0000-0003-3293-8522
|a Bigongiari, C.
|b 26
700 1 _ |0 0000-0002-1288-833X
|a Biland, A.
|b 27
700 1 _ |0 0000-0002-8380-1633
|a Blanch, O.
|b 28
700 1 _ |0 0000-0003-2464-9077
|a Bonnoli, G.
|b 29
700 1 _ |0 0000-0001-6536-0320
|a Bošnjak, Ž.
|b 30
700 1 _ |0 0000-0001-8378-4303
|a Bronzini, E.
|b 31
700 1 _ |a Burelli, I.
|b 32
700 1 _ |0 0000-0001-9352-8936
|a Campoy-Ordaz, A.
|b 33
700 1 _ |0 0000-0002-4137-4370
|a Carosi, A.
|b 34
700 1 _ |a Carosi, R.
|b 35
700 1 _ |0 0000-0002-1426-1311
|a Carretero-Castrillo, M.
|b 36
700 1 _ |0 0000-0003-2999-3563
|a Castro-Tirado, A. J.
|b 37
700 1 _ |0 0000-0003-2033-756X
|a Cerasole, D.
|b 38
700 1 _ |0 0000-0002-9768-2751
|a Ceribella, G.
|b 39
700 1 _ |a Chai, Y.
|b 40
700 1 _ |0 0000-0003-1033-5296
|a Cifuentes, A.
|b 41
700 1 _ |a Colombo, E.
|b 42
700 1 _ |0 0000-0001-7282-2394
|a Contreras, J. L.
|b 43
700 1 _ |a Cortina, J.
|b 44
700 1 _ |0 0000-0001-9078-5507
|a Covino, S.
|b 45
700 1 _ |a D’Amico, G.
|b 46
700 1 _ |0 0000-0003-3703-4418
|a D’Elia, V.
|b 47
700 1 _ |a Vela, P. Da
|b 48
700 1 _ |0 0000-0001-5409-6544
|a Dazzi, F.
|b 49
700 1 _ |a Angelis, A. De
|b 50
700 1 _ |0 0000-0003-3624-4480
|a Lotto, B. De
|b 51
700 1 _ |0 0000-0001-5489-4925
|a de Menezes, R.
|b 52
700 1 _ |0 0000-0002-9468-4751
|a Delfino, M.
|b 53
700 1 _ |0 0000-0002-0166-5464
|a Delgado, J.
|b 54
700 1 _ |0 0000-0002-7014-4101
|a Mendez, C. Delgado
|b 55
700 1 _ |0 0000-0003-4861-432X
|a Pierro, F. Di
|b 56
700 1 _ |a Tria, R. Di
|b 57
700 1 _ |0 0000-0003-0703-824X
|a Venere, L. Di
|b 58
700 1 _ |a Prester, D. Dominis
|b 59
700 1 _ |a Donini, A.
|b 60
700 1 _ |a Dorner, D.
|b 61
700 1 _ |0 0000-0001-9104-3214
|a Doro, M.
|b 62
700 1 _ |a Eisenberger, L.
|b 63
700 1 _ |a Elsaesser, D.
|b 64
700 1 _ |0 0000-0002-4131-655X
|a Escudero, J.
|b 65
700 1 _ |0 0000-0003-4116-6157
|a Fariña, L.
|b 66
700 1 _ |a Fattorini, A.
|b 67
700 1 _ |0 0000-0002-0709-9707
|a Foffano, L.
|b 68
700 1 _ |0 0000-0003-2109-5961
|a Font, L.
|b 69
700 1 _ |0 0000-0003-1832-4129
|a Fröse, S.
|b 70
700 1 _ |a Fukami, S.
|b 71
700 1 _ |a Fukazawa, Y.
|b 72
700 1 _ |a López, R. J. García
|b 73
700 1 _ |0 P:(DE-H253)PIP1019066
|a Garczarczyk, M.
|b 74
700 1 _ |a Gasparyan, S.
|b 75
700 1 _ |a Gaug, M.
|b 76
700 1 _ |a Giesbrecht Paiva, J. G.
|b 77
700 1 _ |0 0000-0002-9021-2888
|a Giglietto, N.
|b 78
700 1 _ |a Giordano, F.
|b 79
700 1 _ |a Gliwny, P.
|b 80
700 1 _ |0 0000-0003-0646-2495
|a Gradetzke, T.
|b 81
700 1 _ |a Grau, R.
|b 82
700 1 _ |a Green, D.
|b 83
700 1 _ |a Green, J. G.
|b 84
700 1 _ |a Günther, P.
|b 85
700 1 _ |a Hadasch, D.
|b 86
700 1 _ |a Hahn, A.
|b 87
700 1 _ |a Hassan, T.
|b 88
700 1 _ |a Heckmann, L.
|b 89
700 1 _ |a Llorente, J. Herrera
|b 90
700 1 _ |a Hrupec, D.
|b 91
700 1 _ |a Imazawa, R.
|b 92
700 1 _ |a Ishio, K.
|b 93
700 1 _ |a Martínez, I. Jiménez
|b 94
700 1 _ |0 0000-0003-4519-7751
|a Jormanainen, J.
|b 95
700 1 _ |a Kankkunen, S.
|b 96
700 1 _ |a Kayanoki, T.
|b 97
700 1 _ |a Kerszberg, D.
|b 98
700 1 _ |a Kluge, G. W.
|b 99
700 1 _ |a Kobayashi, Y.
|b 100
700 1 _ |0 0000-0002-9328-2750
|a Kouch, P. M.
|b 101
700 1 _ |0 0000-0001-9159-9853
|a Kubo, H.
|b 102
700 1 _ |0 0000-0002-8002-8585
|a Kushida, J.
|b 103
700 1 _ |a Láinez, M.
|b 104
700 1 _ |a Lamastra, A.
|b 105
700 1 _ |a Leone, F.
|b 106
700 1 _ |a Lindfors, E.
|b 107
700 1 _ |0 0000-0002-6336-865X
|a Lombardi, S.
|b 108
700 1 _ |a Longo, F.
|b 109
700 1 _ |0 0000-0002-3882-9477
|a López-Coto, R.
|b 110
700 1 _ |0 0000-0002-8791-7908
|a López-Moya, M.
|b 111
700 1 _ |a López-Oramas, A.
|b 112
700 1 _ |0 0000-0003-4457-5431
|a Loporchio, S.
|b 113
700 1 _ |a Lorini, A.
|b 114
700 1 _ |a Lyard, E.
|b 115
700 1 _ |0 0000-0002-6395-3410
|a de Oliveira Fraga, B. Machado
|b 116
700 1 _ |a Majumdar, P.
|b 117
700 1 _ |a Makariev, M.
|b 118
700 1 _ |0 0000-0002-5959-4179
|a Maneva, G.
|b 119
700 1 _ |a Manganaro, M.
|b 120
700 1 _ |0 0000-0001-5872-1191
|a Mangano, S.
|b 121
700 1 _ |a Mannheim, K.
|b 122
700 1 _ |0 0000-0003-3297-4128
|a Mariotti, M.
|b 123
700 1 _ |a Martínez, M.
|b 124
700 1 _ |a Martínez-Chicharro, M.
|b 125
700 1 _ |a Mas-Aguilar, A.
|b 126
700 1 _ |0 0000-0002-2010-4005
|a Mazin, D.
|b 127
700 1 _ |a Menchiari, S.
|b 128
700 1 _ |a Mender, S.
|b 129
700 1 _ |a Miceli, D.
|b 130
700 1 _ |a Miener, T.
|b 131
700 1 _ |0 0000-0002-1472-9690
|a Miranda, J. M.
|b 132
700 1 _ |0 0000-0003-0163-7233
|a Mirzoyan, R.
|b 133
700 1 _ |a González, M. Molero
|b 134
700 1 _ |a Molina, E.
|b 135
700 1 _ |a Mondal, H. A.
|b 136
700 1 _ |0 0000-0002-1344-9080
|a Moralejo, A.
|b 137
700 1 _ |a Morcuende, D.
|b 138
700 1 _ |0 0000-0002-7308-2356
|a Nakamori, T.
|b 139
700 1 _ |0 0000-0002-1791-8235
|a Nanci, C.
|b 140
700 1 _ |0 0000-0003-4772-595X
|a Neustroev, V.
|b 141
700 1 _ |a Nickel, L.
|b 142
700 1 _ |0 P:(DE-H253)PIP1084471
|a Rosillo, M. Nievas
|b 143
700 1 _ |a Nigro, C.
|b 144
700 1 _ |a Nikolić, L.
|b 145
700 1 _ |a Nilsson, K.
|b 146
700 1 _ |0 0000-0002-1830-4251
|a Nishijima, K.
|b 147
700 1 _ |a Ekoume, T. Njoh
|b 148
700 1 _ |a Noda, K.
|b 149
700 1 _ |0 0000-0002-6246-2767
|a Nozaki, S.
|b 150
700 1 _ |a Ohtani, Y.
|b 151
700 1 _ |0 0000-0002-3055-7964
|a Okumura, A.
|b 152
700 1 _ |a Otero-Santos, J.
|b 153
700 1 _ |0 0000-0002-2239-3373
|a Paiano, S.
|b 154
700 1 _ |a Paneque, D.
|b 155
700 1 _ |a Paoletti, R.
|b 156
700 1 _ |0 0000-0002-1566-9044
|a Paredes, J. M.
|b 157
700 1 _ |a Peresano, M.
|b 158
700 1 _ |a Persic, M.
|b 159
700 1 _ |a Pihet, M.
|b 160
700 1 _ |0 0000-0002-2507-2612
|a Pirola, G.
|b 161
700 1 _ |0 0000-0001-6125-9487
|a Podobnik, F.
|b 162
700 1 _ |a Prada Moroni, P. G.
|b 163
700 1 _ |0 0000-0003-4502-9053
|a Prandini, E.
|b 164
700 1 _ |0 0000-0003-0406-7387
|a Principe, G.
|b 165
700 1 _ |0 0000-0003-2636-5000
|a Rhode, W.
|b 166
700 1 _ |0 0000-0002-9931-4557
|a Ribó, M.
|b 167
700 1 _ |0 0000-0003-4137-1134
|a Rico, J.
|b 168
700 1 _ |a Righi, C.
|b 169
700 1 _ |a Sahakyan, N.
|b 170
700 1 _ |a Saito, T.
|b 171
700 1 _ |0 0000-0002-1946-7706
|a Saturni, F. G.
|b 172
700 1 _ |a Schmidt, K.
|b 173
700 1 _ |0 0000-0003-2089-0277
|a Schmuckermaier, F.
|b 174
700 1 _ |a Schubert, J. L.
|b 175
700 1 _ |a Schweizer, T.
|b 176
700 1 _ |0 0000-0001-6181-839X
|a Sciaccaluga, A.
|b 177
700 1 _ |a Silvestri, G.
|b 178
700 1 _ |a Sitarek, J.
|b 179
700 1 _ |0 0000-0002-4387-9372
|a Sliusar, V.
|b 180
700 1 _ |0 0000-0003-4973-7903
|a Sobczynska, D.
|b 181
700 1 _ |a Spolon, A.
|b 182
700 1 _ |a Stamerra, A.
|b 183
700 1 _ |a Strišković, J.
|b 184
700 1 _ |a Strom, D.
|b 185
700 1 _ |a Strzys, M.
|b 186
700 1 _ |a Suda, Y.
|b 187
700 1 _ |a Tajima, H.
|b 188
700 1 _ |a Takahashi, M.
|b 189
700 1 _ |a Takeishi, R.
|b 190
700 1 _ |0 0000-0002-9559-3384
|a Temnikov, P.
|b 191
700 1 _ |a Terauchi, K.
|b 192
700 1 _ |0 0000-0002-4209-3407
|a Terzić, T.
|b 193
700 1 _ |0 0009-0003-3424-2534
|a Teshima, M.
|b 194
700 1 _ |a Truzzi, S.
|b 195
700 1 _ |0 0000-0002-2840-0001
|a Tutone, A.
|b 196
700 1 _ |0 0000-0002-6159-5883
|a Ubach, S.
|b 197
700 1 _ |a van Scherpenberg, J.
|b 198
700 1 _ |0 0000-0002-2409-9792
|a Acosta, M. Vazquez
|b 199
700 1 _ |a Ventura, S.
|b 200
700 1 _ |0 0000-0001-5916-9028
|a Verna, G.
|b 201
700 1 _ |0 0000-0001-5031-5930
|a Viale, I.
|b 202
700 1 _ |a Vigorito, C. F.
|b 203
700 1 _ |a Vitale, V.
|b 204
700 1 _ |0 0000-0003-3444-3830
|a Vovk, I.
|b 205
700 1 _ |a Walter, R.
|b 206
700 1 _ |a Wersig, F.
|b 207
700 1 _ |a Will, M.
|b 208
700 1 _ |a Wunderlich, C.
|b 209
700 1 _ |a Yamamoto, T.
|b 210
700 1 _ |0 0000-0002-0766-864X
|a Bachev, R.
|b 211
700 1 _ |a Fallah Ramazani, V.
|b 212
700 1 _ |a Filippenko, A. V.
|b 213
700 1 _ |0 0000-0002-2024-8199
|a Hovatta, T.
|b 214
700 1 _ |0 0000-0001-6158-1708
|a Jorstad, S. G.
|b 215
700 1 _ |a Kiehlmann, S.
|b 216
700 1 _ |a Lähteenmäki, A.
|b 217
700 1 _ |a Liodakis, I.
|b 218
700 1 _ |0 0000-0001-7396-3332
|a Marscher, A. P.
|b 219
700 1 _ |0 0000-0002-5491-5244
|a Max-Moerbeck, W.
|b 220
700 1 _ |0 0000-0001-8785-9771
|a Omeliukh, A.
|b 221
700 1 _ |a Pursimo, T.
|b 222
700 1 _ |a Readhead, A. C. S.
|b 223
700 1 _ |0 P:(DE-H253)PIP1028911
|a Rodrigues, X.
|b 224
700 1 _ |0 0000-0003-1249-6026
|a Tornikoski, M.
|b 225
700 1 _ |0 0000-0002-8657-0076
|a Wierda, F.
|b 226
700 1 _ |a Zheng, W.
|b 227
700 1 _ |0 P:(DE-HGF)0
|a MAGIC Collaboration
|b 228
|e Collaboration author
856 4 _ |u https://bib-pubdb1.desy.de/record/643441/files/2412.15836v1.pdf
|y Restricted
856 4 _ |u https://bib-pubdb1.desy.de/record/643441/files/2412.15836v1.pdf?subformat=pdfa
|x pdfa
|y Restricted
909 C O |o oai:bib-pubdb1.desy.de:643441
|p VDB
910 1 _ |0 I:(DE-588b)2008985-5
|6 P:(DE-H253)PIP1019066
|a Deutsches Elektronen-Synchrotron
|b 74
|k DESY
910 1 _ |0 I:(DE-588b)2008985-5
|6 P:(DE-H253)PIP1084471
|a Deutsches Elektronen-Synchrotron
|b 143
|k DESY
910 1 _ |0 I:(DE-588b)2008985-5
|6 P:(DE-H253)PIP1028911
|a Deutsches Elektronen-Synchrotron
|b 224
|k DESY
910 1 _ |0 I:(DE-HGF)0
|6 P:(DE-H253)PIP1028911
|a External Institute
|b 224
|k Extern
910 1 _ |0 I:(DE-588b)2008985-5
|6 P:(DE-HGF)0
|a Deutsches Elektronen-Synchrotron
|b 228
|k DESY
913 1 _ |0 G:(DE-HGF)POF4-613
|1 G:(DE-HGF)POF4-610
|2 G:(DE-HGF)POF4-600
|3 G:(DE-HGF)POF4
|4 G:(DE-HGF)POF
|a DE-HGF
|b Forschungsbereich Materie
|l Matter and the Universe
|v Matter and Radiation from the Universe
|x 0
914 1 _ |y 2025
920 1 _ |0 I:(DE-H253)Z_GA-20210408
|k Z_GA
|l Gammaastronomie
|x 0
980 _ _ |a preprint
980 _ _ |a VDB
980 _ _ |a I:(DE-H253)Z_GA-20210408
980 _ _ |a UNRESTRICTED

LibraryCollectionCLSMajorCLSMinorLanguageAuthor
Marc 21