New Hard-TeV Extreme Blazars Detected with the MAGIC Telescopes*

被引：45

作者：

Acciari, V. A. ^{[1
,2
]}

Ansoldi, S. ^{[3
,4
,5
,6
,7
,8
,9
]}

Antonelli, L. A. ^{[9
]}

Engels, A. Arbet ^{[10
]}

Asano, K. ^{[5
,6
,7
,8
,9
]}

Baack, D. ^{[11
]}

Babic, A. ^{[12
,13
,14
,15
,16
]}

Banerjee, B. ^{[17
]}

Barres de Almeida, U. ^{[18
]}

Barrio, J. A. ^{[19
,20
]}

Becerra Gonzalez, J. ^{[1
,2
]}

Bednarek, W. ^{[21
]}

Bellizzi, L. ^{[22
,23
]}

Bernardini, E. ^{[24
,25
,26
]}

Berti, A. ^{[27
]}

Besenrieder, J. ^{[28
]}

Bhattacharyya, W. ^{[24
]}

Bigongiari, C. ^{[9
]}

Biland, A. ^{[10
]}

Blanch, O. ^{[29
]}

Bonnoli, G. ^{[22
,23
]}

Bosnjak, Z. ^{[12
,13
,14
,15
,16
]}

Busetto, G. ^{[25
,26
]}

Carosi, R. ^{[30
,31
]}

Ceribella, G. ^{[28
]}

Cerruti, M. ^{[32
]}

Chai, Y. ^{[28
]}

Chilingaryan, A. ^{[33
]}

Cikota, S. ^{[12
,13
,14
,15
,16
]}

Colak, S. M. ^{[29
]}

Colin, U. ^{[28
]}

Colombo, E. ^{[1
,2
]}

Contreras, J. L. ^{[19
,20
]}

Cortina, J. ^{[34
]}

Covino, S. ^{[9
]}

D'Elia, V ^{[9
]}

Da Vela, P. ^{[30
,31
]}

Dazzi, F. ^{[9
]}

De Angelis, A. ^{[25
,26
]}

De Lotto, B. ^{[3
,4
]}

Delfino, M. ^{[29
,35
]}

Delgado, J. ^{[29
,35
]}

Depaoli, D. ^{[27
]}

Di Pierro, F. ^{[27
]}

Di Venere, L. ^{[27
]}

Do Souto Espineira, E. ^{[29
]}

Prester, D. Dominis ^{[12
,13
,14
,15
,16
]}

Donini, A. ^{[3
,4
]}

Dorner, D. ^{[36
]}

Doro, M. ^{[25
,26
]}

机构：

[1] Inst Astrofis Canarias, E-38200 San Cristobal la Laguna, Spain

[2] Univ La Laguna, Dept Astrofis, E-38206 Tenerife, Spain

[3] Univ Udine, I-33100 Udine, Italy

[4] INFN Trieste, I-33100 Udine, Italy

[5] Univ Tokyo, Japanese Mag Consortium ICRR, Chiba 2778582, Japan

[6] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan

[7] Tokai Univ, Hiratsuka, Kanagawa 2591292, Japan

[8] RIKEN, Saitama 3510198, Japan

[9] Natl Inst Astrophys INAF, I-100136 Rome, Italy

[10] Swiss Fed Inst Technol, CH-8093 Zurich, Switzerland

[11] Tech Univ Dortmund, D-44221 Dortmund, Germany

[12] Croatian Consortium Univ Rijeka, Dept Phys, Rijeka 51000, Croatia

[13] Univ Split, FESB, Split 21000, Croatia

[14] Univ Zagreb, FER, Zagreb 10000, Croatia

[15] Univ Osijek, Osijek 31000, Croatia

[16] Rudjer Boskovic Inst, Zagreb 10000, Croatia

[17] HBNI, Saha Inst Nucl Phys, 1-AF Bidhannagar,Sect 1, Kolkata 700064, India

[18] URCA, CBPF, BR-22290180 Rio De Janeiro, RJ, Brazil

[19] Univ Complutense Madrid, IPARCOS Inst, E-28040 Madrid, Spain

[20] Univ Complutense Madrid, EMFTEL Dept, E-28040 Madrid, Spain

[21] Univ Lodz, Dept Astrophys, PL-90236 Lodz, Poland

[22] Univ Siena, I-53100 Siena, Italy

[23] INFN Pisa, I-53100 Siena, Italy

[24] DESY, D-15738 Zeuthen, Germany

[25] Univ Padua, I-35131 Padua, Italy

[26] Ist Nazl Fis Nucl, I-35131 Padua, Italy

[27] Ist Nazl Fis Nucl, I-00044 Rome, Italy

[28] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[29] Barcelona Inst Sci & Technol, IFAE, E-08193 Bellaterra, Barcelona, Spain

[30] Univ Pisa, I-56126 Pisa, Italy

[31] INFN Pisa, I-56126 Pisa, Italy

[32] Univ Barcelona, ICCUB, IEEC UB, E-08028 Barcelona, Spain

[33] A Alikhanyan Natl Lab, Armenian Consortium ICRANet Armenia NAS RA, Yerevan, Armenia

[34] Ctr Invest Energet Medioambientales & Tecnol, E-28040 Madrid, Spain

[35] PIC, E-08193 Bellaterra, Barcelona, Spain

[36] Univ Wurzburg, D-97074 Wurzburg, Germany

[37] Univ Turku, FINNISH MAG Consortium, Finnish Ctr Astron ESO FINCA, FI-20014 Turku, Finland

[38] Univ Oulu, Astron Res Unit, FI-90014 Oulu, Finland

[39] Univ Autonoma Barcelona, Dept Fis, E-08193 Bellaterra, Spain

[40] Univ Autonoma Barcelona, CERES IEEC, E-08193 Bellaterra, Spain

[41] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy

[42] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, BG-1784 Sofia, Bulgaria

[43] INAF Trieste, Trieste, Italy

[44] Univ Bologna, Dept Phys & Astron, Bologna, Italy

[45] North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa

[46] Univ Savoie Mt Blanc, Univ Grenoble Alpes, LAPP, CNRS, F-74000 Annecy, France

[47] Ist Radioastron, Bologna, Italy

[48] Univ Roma Tor Vergata, Dept Phys, Via Ric Sci 1, I-00133 Rome, Italy

[49] Univ Maryland, Dept Astron, College Pk, MD 20742 USA

[50] NASA, Goddard Space Flight Ctr, Xray Astrophys Lab, Greenbelt, MD 20771 USA

来源：

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 2020年 / 247卷 / 01期

基金：

芬兰科学院;

关键词：

Blazars; Active galactic nuclei; Relativistic jets; BL Lacertae objects; X-ray active galactic nuclei; Catalogs; Non-thermal radiation sources; Gamma-ray sources; BL-LAC OBJECTS; GAMMA-RAYS; COMPLETE SAMPLE; MAJOR UPGRADE; SCALE JETS; RADIATION; EMISSION; VIEW; ACCELERATION; PERFORMANCE;

D O I：

10.3847/1538-4365/ab5b98

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页数：24

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