Testing emission models on the extreme blazar 2WHSP J073326.7+515354 detected at very high energies with the MAGIC telescopes-Reference-Cited by-同舟云学术

Testing emission models on the extreme blazar 2WHSP J073326.7+515354 detected at very high energies with the MAGIC telescopes

Published:2019-09-30 Issue:2 Volume:490 Page:2284-2299
ISSN:0035-8711
Container-title:Monthly Notices of the Royal Astronomical Society
language:en
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Author:

, ,Acciari V A¹²,Ansoldi S³⁴⁵⁶⁷,Antonelli L A⁸,Arbet Engels A⁹,Baack D¹⁰,Babić A¹¹¹²¹³¹⁴¹⁵,Banerjee B¹⁶,Barres de Almeida U¹⁷,Barrio J A¹⁸,Becerra González J¹²,Bednarek W¹⁹,Bellizzi L²⁰,Bernardini E²¹²²,Berti A²³,Besenrieder J²⁴,Bhattacharyya W²¹,Bigongiari C⁸,Biland A⁹,Blanch O²⁵,Bonnoli G²⁰,Bošnjak Ž¹¹¹²¹³¹⁴¹⁵,Busetto G²²,Carosi R²⁶,Ceribella G²⁴,Cerruti M²⁷^ORCID,Chai Y²⁴,Chilingaryan A²⁸,Cikota S¹¹¹²¹³¹⁴¹⁵,Colak S M²⁵,Colin U²⁴,Colombo E¹²,Contreras J L¹⁸,Cortina J²⁹,Covino S⁸,D’Elia V⁸,Da Vela P²⁶,Dazzi F⁸,De Angelis A²²,De Lotto B³,Delfino M²⁵³⁰,Delgado J²⁵³⁰,Depaoli D²³,Di Pierro F²³,Di Venere L²³,Do Souto Espiñeira E²⁵,Dominis Prester D¹¹¹²¹³¹⁴¹⁵,Donini A³,Dorner D³¹,Doro M²²,Elsaesser D¹⁰,Fallah Ramazani V³²³³,Fattorini A¹⁰,Ferrara G⁸,Fidalgo D¹⁸,Foffano L²²^ORCID,Fonseca M V¹⁸,Font L³⁴,Fruck C²⁴,Fukami S⁴⁵⁶⁷,García López R J¹,Garczarczyk M²¹,Gasparyan S²⁸,Gaug M³⁴,Giglietto N²³,Giordano F²³,Godinović N¹¹¹²¹³¹⁴¹⁵,Green D²⁴,Guberman D²⁵,Hadasch D⁴⁵⁶⁷,Hahn A²⁴,Herrera J¹²,Hoang J¹⁸,Hrupec D¹¹¹²¹³¹⁴¹⁵,Hütten M²⁴,Inada T⁴⁵⁶⁷,Inoue S⁴⁵⁶⁷,Ishio K²⁴,Iwamura Y⁴⁵⁶⁷,Jouvin L²⁵,Kerszberg D²⁵,Kubo H⁴⁵⁶⁷,Kushida J⁴⁵⁶⁷,Lamastra A⁸,Lelas D¹¹¹²¹³¹⁴¹⁵,Leone F⁸,Lindfors E³²³³,Lombardi S⁸,Longo F³³⁵,López M¹⁸,López-Coto R²²,López-Oramas A¹²,Loporchio S²³,Machado de Oliveira Fraga B¹⁷,Maggio C³⁴,Majumdar P¹⁶,Makariev M³⁶,Mallamaci M²²,Maneva G³⁶,Manganaro M¹¹¹²¹³¹⁴¹⁵,Mannheim K³¹,Maraschi L⁸,Mariotti M²²,Martínez M²⁵,Mazin D⁴⁵⁶⁷²⁴,Mićanović S¹¹¹²¹³¹⁴¹⁵,Miceli D³,Minev M³⁶,Miranda J M²⁰,Mirzoyan R²⁴,Molina E²⁷,Moralejo A²⁵,Morcuende D¹⁸,Moreno V³⁴,Moretti E²⁵,Munar-Adrover P³⁴,Neustroev V³²³³,Nigro C²¹,Nilsson K³²³³,Ninci D²⁵,Nishijima K⁴⁵⁶⁷,Noda K⁴⁵⁶⁷,Nogués L²⁵,Nozaki S⁴⁵⁶⁷,Paiano S²²,Palacio J²⁵,Palatiello M³,Paneque D²⁴,Paoletti R²⁰,Paredes J M²⁷,Peñil P¹⁸,Peresano M³,Persic M³³⁷,Prada Moroni P G²⁶,Prandini E²²,Puljak I¹¹¹²¹³¹⁴¹⁵,Rhode W¹⁰,Ribó M²⁷,Rico J²⁵,Righi C⁸,Rugliancich A²⁶,Saha L¹⁸,Sahakyan N²⁸,Saito T⁴⁵⁶⁷,Sakurai S⁴⁵⁶⁷,Satalecka K²¹,Schmidt K¹⁰,Schweizer T²⁴,Sitarek J¹⁹,Šnidarić I¹¹¹²¹³¹⁴¹⁵,Sobczynska D¹⁹,Somero A¹²,Stamerra A⁸,Strom D²⁴,Strzys M²⁴,Suda Y²⁴,Surić T¹¹¹²¹³¹⁴¹⁵,Takahashi M⁴⁵⁶⁷,Tavecchio F⁸,Temnikov P³⁶,Terzić T¹¹¹²¹³¹⁴¹⁵,Teshima M⁴⁵⁶⁷²⁴,Torres-Albà N²⁷,Tosti L²³,Vagelli V²³,van Scherpenberg J²⁴,Vanzo G¹²,Vazquez Acosta M¹²,Vigorito C F²³,Vitale V²³,Vovk I²⁴,Will M²⁴,Zarić D¹¹¹²¹³¹⁴¹⁵,Asano K⁴⁵⁶⁷,D’Ammando F³⁸,Clavero R¹²

Affiliation:

1. Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain

2. Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, Spain

3. Università di Udine, and INFN Trieste, I-33100 Udine, Italy

4. ICRR, The University of Tokyo, 277-8582 Chiba, Japan

5. Department of Physics, Kyoto University, 606-8502 Kyoto, Japan

6. Physics department, Tokai University, 259-1292 Kanagawa, Japan

7. RIKEN, 351-0198 Saitama, Japan

8. National Institute for Astrophysics (INAF), I-00136 Rome, Italy

9. ETH Zurich, CH-8093 Zurich, Switzerland

10. Physics department, Technische Universität Dortmund, D-44221 Dortmund, Germany

11. Department of Physics, University of Rijeka, 51000 Rijeka, Croatia

12. Physics department, University of Split - FESB, 21000 Split, Croatia

13. Physics department, University of Zagreb - FER, 10000 Zagreb, Croatia

14. Physics department, University of Osijek, 31000 Osijek, Croatia

15. Physics department, Rudjer Boskovic Institute, 10000 Zagreb, Croatia

16. Saha Institute of Nuclear Physics, HBNI, 1/AF Bidhannagar, Salt Lake, Sector-1, Kolkata 700064, India

17. Centro Brasileiro de Pesquisas Físicas (CBPF), 22290-180 URCA, Rio de Janeiro, RJ, Brazil

18. IPARCOS Institute and EMFTEL Department, Universidad Complutense de Madrid, E-28040 Madrid, Spain

19. Department of Astrophysics, University of Łódź, PL-90236 Łódź, Poland

20. Physics department, Università di Siena, and INFN Pisa, I-53100 Siena, Italy

21. Deutsches Elektronen-Synchrotron (DESY), D-15738 Zeuthen, Germany

22. Physics department, Università di Padova and INFN, I-35131 Padova, Italy

23. Istituto Nazionale Fisica Nucleare (INFN), I-00044 Frascati (Roma), Italy

24. Max-Planck-Institut für Physik, D-80805 München, Germany

25. Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), E-08193 Bellaterra (Barcelona), Spain

26. Physics department, Università di Pisa, and INFN Pisa, I-56126 Pisa, Italy

27. ICCUB, Universitat de Barcelona, IEEC-UB, E-08028 Barcelona, Spain

28. ICRANet-Armenia at NAS RA, 0019 Yerevan, Armenia

29. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, E-28040 Madrid, Spain

30. Port d’Informació Científica (PIC) E-08193 Bellaterra (Barcelona) Spain

31. Physics department, Universität Würzburg, D-97074 Würzburg, Germany

32. Finnish Centre of Astronomy with ESO (FINCA), University of Turku, FI-20014 Turku, Finland

33. Astronomy Research Unit, University of Oulu, FI-90014 Oulu, Finland

34. Departament de Física, and CERES-IEEC, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain

35. Dipartimento di Fisica, Università di Trieste, I-34127 Trieste, Italy

36. Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, BG-1784 Sofia, Bulgaria

37. INAF-Trieste and Department of Physics and Astronomy, University of Bologna, Italy

38. INAF Istituto di Radioastronomia, via Gobetti 101, 40129 Bologna, Italy

Abstract

ABSTRACT Extreme high-energy-peaked BL Lac objects (EHBLs) are an emerging class of blazars. Their typical two-hump-structured spectral energy distribution (SED) peaks at higher energies with respect to conventional blazars. Multiwavelength (MWL) observations constrain their synchrotron peak in the medium to hard X-ray band. Their gamma-ray SED peaks above the GeV band, and in some objects it extends up to several TeV. Up to now, only a few EHBLs have been detected in the TeV gamma-ray range. In this paper, we report the detection of the EHBL 2WHSP J073326.7+515354, observed and detected during 2018 in TeV gamma rays with the MAGIC telescopes. The broad-band SED is studied within an MWL context, including an analysis of the Fermi-LAT data over 10 yr of observation and with simultaneous Swift-XRT, Swift-UVOT, and KVA data. Our analysis results in a set of spectral parameters that confirms the classification of the source as an EHBL. In order to investigate the physical nature of this extreme emission, different theoretical frameworks were tested to model the broad-band SED. The hard TeV spectrum of 2WHSP J073326.7+515354 sets the SED far from the energy equipartition regime in the standard one-zone leptonic scenario of blazar emission. Conversely, more complex models of the jet, represented by either a two-zone spine-layer model or a hadronic emission model, better represent the broad-band SED.

Funder

BMBF

MPG

INFN

INAF

SNF

ERDF

MINECO

Indian Department of Atomic Energy

JSPS

MEXT

Bulgarian Ministry of Education and Science