Report/Journal Article

PUBDB-2020-01399

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png New Hard-TeV Extreme Blazars Detected with the MAGIC Telescopes

Acciari, V. A. ; Ansoldi, S. ; Antonelli, L. A. ; Engels, A. A. ; Asano, K. ; Baack, D. ; Babić, A. ; Banerjee, B. ; de Almeida, U. B. ; Barrio, J. A. ; González, J. B. ; Bednarek, W. ; Bellizzi, L. ; Bernardini, E.Extern* ; Berti, A. ; Besenrieder, J. ; Bhattacharyya, W.DESY* ; Bigongiari, C. ; Biland, A. ; Blanch, O. ; Bonnoli, G. ; Bošnjak, Ž. ; Busetto, G. ; Carosi, R. ; Ceribella, G. ; Cerruti, M. ; Chai, Y. ; Chilingaryan, A. ; Cikota, S. ; Colak, S. M. ; Colin, U. ; Colombo, E. ; Contreras, J. L. ; Cortina, J. ; Covino, S. ; D’Elia, V. ; Vela, P. D. ; Dazzi, F. ; Angelis, A. D. ; Lotto, B. D. ; Delfino, M. ; Delgado, J. ; Depaoli, D. ; Pierro, F. D. ; Venere, L. D. ; Souto Espiñeira, E. D. ; Prester, D. D. ; Donini, A. ; Dorner, D. ; Doro, M. ; Elsaesser, D. ; Ramazani, V. F. ; Fattorini, A. ; Ferrara, G. ; Fidalgo, D. ; Foffano, L. ; Fonseca, M. V. ; Font, L. ; Fruck, C. ; Fukami, S. ; López, R. J. G. ; Garczarczyk, M.DESY* ; Gasparyan, S. ; Gaug, M. ; Giglietto, N. ; Giordano, F. ; Godinović, N. ; Green, D. ; Guberman, D. ; Hadasch, D. ; Hahn, A. ; Herrera, J. ; Hoang, J. ; Hrupec, D. ; Hütten, M. ; Inada, T. ; Inoue, S. ; Ishio, K. ; Iwamura, Y. ; Jouvin, L. ; Kerszberg, D. ; Kubo, H. ; Kushida, J. ; Lamastra, A. ; Lelas, D. ; Leone, F. ; Lindfors, E. ; Lombardi, S. ; Longo, F. ; López, M. ; López-Coto, R. ; López-Oramas, A. ; Loporchio, S. ; de Oliveira Fraga, B. M. ; Maggio, C. ; Majumdar, P. ; Makariev, M. ; Mallamaci, M. ; Maneva, G. ; Manganaro, M. ; Mannheim, K. ; Maraschi, L. ; Mariotti, M. ; Martínez, M. ; 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. ; Nigro, C.DESY* ; Nilsson, K. ; Ninci, D. ; Nishijima, K. ; Noda, K. ; Nogués, L. ; Nozaki, S. ; Paiano, S. ; Palatiello, M. ; Paneque, D. ; Paoletti, R. ; Paredes, J. M. ; Peñil, P. ; Peresano, M. ; Persic, M. ; Moroni, P. G. P. ; Prandini, E. (Corresponding author) ; Puljak, I. ; Rhode, W. ; Ribó, M. ; Rico, J. ; Righi, C. ; Rugliancich, A. ; Saha, L. ; Sahakyan, N. ; Saito, T. ; Sakurai, S. ; Satalecka, K.DESY* ; Schmidt, K. ; Schweizer, T. ; Sitarek, J. ; Šnidarić, I. ; Sobczynska, D. ; Somero, A. ; Stamerra, A. ; Strom, D. ; Strzys, M. ; Suda, Y. ; Surić, T. ; Takahashi, M. ; Tavecchio, F. ; Temnikov, P. ; Terzić, T. ; Teshima, M. ; Torres-Albà, N. ; Tosti, L. ; Vagelli, V. ; Scherpenberg, J. v. ; Vanzo, G. ; Acosta, M. V. ; Vigorito, C. F. ; Vitale, V. ; Vovk, I. ; Will, M. ; Zarić, D. ; Arcaro, C. (Corresponding author) ; Carosi, A. ; D’Ammando, F. ; Tombesi, F. ; Lohfink, A. ; Fallah Ramazani, V. (Corresponding author)

2020
Univ. of Chicago Press11033 Chicago, Ill. [u.a.]

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Please use a persistent id in citations: doi:10.3847/1538-4365/ab5b98  doi:10.3204/PUBDB-2020-01399

Report No.: arXiv:1911.06680

Abstract: Extreme high-frequency-peaked BL Lac objects (EHBLs) are blazars that exhibit extremely energetic synchrotron emission. They also feature nonthermal gamma-ray emission whose peak lies in the very high-energy (VHE, E > 100 GeV) range, and in some sources exceeds 1 TeV: this is the case for hard-TeV EHBLs such as 1ES 0229+200. With the aim of increasing the EHBL population, 10 targets were observed with the MAGIC telescopes from 2010 to 2017, for a total of 265 hr of good-quality data. The data were complemented by coordinated Swift observations. The X-ray data analysis confirms that all but two sources are EHBLs. The sources show only a modest variability and a harder-when-brighter behavior, typical for this class of objects. At VHE gamma-rays, three new sources were detected and a hint of a signal was found for another new source. In each case, the intrinsic spectrum is compatible with the hypothesis of a hard-TeV nature of these EHBLs. The broadband spectral energy distributions (SEDs) of all sources are built and modeled in the framework of a single-zone, purely leptonic model. The VHE gamma-ray-detected sources were also interpreted with a spine–layer model and a proton synchrotron model. The three models provide a good description of the SEDs. However, the resulting parameters differ substantially in the three scenarios, in particular the magnetization parameter. This work presents the first mini catalog of VHE gamma-ray and multiwavelength observations of EHBLs.

Keyword(s): gamma ray: VHE ; gamma ray: emission ; model: leptonic ; blazar ; MAGIC ; proton synchrotron ; magnetization ; synchrotron ; spectral ; quality ; X-ray

Note: 30 pages, 9 figures, accepted for publication in Astrophysical Journal Supplement

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Contributing Institute(s):

1. Astroteilchenphysik (ZEU-EXP/AT)

Research Program(s):

1. 613 - Matter and Radiation from the Universe (POF3-613) (POF3-613)

Experiment(s):

1. Major Atmospheric Gamma Imaging Cherenkov

Appears in the scientific report 2020

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Database coverage:
; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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