Investigating the peculiar emission from the new VHE gamma-ray source H1722+119

被引：14

作者：

Ahnen, M. L. ^{[1
]}

Ansoldi, S. ^{[2
]}

Antonelli, L. A. ^{[3
]}

Antoranz, P. ^{[4
,5
]}

Babic, A. ^{[6
,7
]}

Banerjee, B. ^{[8
]}

Bangale, P. ^{[9
]}

de Almeida, U. Barres ^{[9
,10
]}

Barrio, J. A. ^{[11
]}

Becerra Gonzalez, J. ^{[12
,13
,14
,15
,16
]}

Bednarek, W. ^{[17
]}

Bernardini, E. ^{[18
,19
]}

Biasuzzi, B. ^{[2
]}

Biland, A. ^{[1
]}

Blanch, O. ^{[20
]}

Bonnefoy, S. ^{[11
]}

Bonnoli, G. ^{[3
]}

Borracci, F. ^{[9
]}

Bretz, T. ^{[21
,22
]}

Buson, S. ^{[23
,24
]}

Carosi, A. ^{[3
]}

Chatterjee, A. ^{[8
]}

Clavero, R. ^{[12
,13
]}

Colin, P. ^{[9
]}

Colombo, E. ^{[12
,13
]}

Contreras, J. L. ^{[11
]}

Cortina, J. ^{[20
]}

Covino, S. ^{[3
]}

Da Vela, P. ^{[4
,5
]}

Dazzi, F. ^{[9
]}

De Angelis, A. ^{[23
,24
]}

De Lotto, B. ^{[2
]}

Wilhelmi, E. de Ona ^{[25
]}

Di Pierro, F. ^{[3
]}

Doert, M. ^{[26
]}

Dominguez, A. ^{[11
]}

Prester, D. Dominis ^{[6
,7
]}

Dorner, D. ^{[21
]}

Doro, M. ^{[23
,24
]}

Einecke, S. ^{[26
]}

Glawion, D. Eisenacher ^{[21
]}

Elsaesser, D. ^{[26
]}

Ramazani, V. Fallah ^{[27
,28
]}

Fernandez-Barral, A. ^{[20
]}

Fidalgo, D. ^{[11
]}

Fonseca, M. V. ^{[11
]}

Font, L. ^{[29
,30
]}

Frantzen, K. ^{[26
]}

Fruck, C. ^{[9
]}

Galindo, D. ^{[31
]}

机构：

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

[2] Univ Udine, INFN Trieste, I-33100 Udine, Italy

[3] INAF Natl Inst Astrophys, I-00136 Rome, Italy

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

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

[6] Univ Split, Univ Rijeka, Rudjer Boskov Inst, Croatian MAGIC Consortium, Rijeka, Croatia

[7] Univ Zagreb, Zagreb, Croatia

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

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

[10] Brasileiro Pesquisas Fis CBPF MCTI, R Dr Xavier Sigaud,150 Urca, BR-22290180 Rio De Janeiro, RJ, Brazil

[11] Univ Complutense, E-28040 Madrid, Spain

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

[13] Univ La Laguna, Dept Astrofis, E-38206 San Cristobal la Laguna, Tenerife, Spain

[14] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[15] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

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

[17] Univ Lodz, PL-90236 Lodz, Poland

[18] Deutsch Elektronen Synchrotron DESY, D-15738 Zeuthen, Germany

[19] Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany

[20] Barcelona Inst Sci & Technol, IFAE, Campus UAB, E-08193 Bellaterra, Barcelona, Spain

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

[22] Ecole Polytech Fed Lausanne, Lausanne, Switzerland

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

[24] INFN, I-35131 Padua, Italy

[25] CSIC, IEEC, Inst Space Sci, E-08193 Barcelona, Spain

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

[27] Univ Turku, Tuorla Observ, Finnish MAGIC Consortium, Turku, Finland

[28] Univ Oulu, Astron Div, Oulu, Finland

[29] Univ Autonoma Barcelona, Dept Fis, Unitat Fis Radiac, E-08193 Bellaterra, Spain

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

[31] Univ Barcelona, ICC, IEEC, UB, E-08028 Barcelona, Spain

[32] Japanese MAGIC Consortium, Dept Phys, Tokyo, Japan

[33] Univ Tokyo, Kyoto Univ, Tokai Univ, Hakubi Ctr,Univ Tokushima,KEK, Tokyo, Japan

[34] Inst Nucl Energy Res, BG-1784 Sofia, Bulgaria

[35] Finnish Ctr Astron, ESO FINCA, Turku, Finland

[36] INAF Osservatorio Astron Trieste, Trieste, Italy

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

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

[39] ISDC Sci Data Ctr Astrophys, CH-1290 Geneva, Switzerland

[40] ICREA, E-08193 Barcelona, Spain

[41] CSIC, IEEC, Inst Space Sci, E-08193 Barcelona, Spain

[42] Univ Bologna, Dip Fis & Astron, I-40127 Bologna, Italy

[43] INAF Ist Radioastron, I-40129 Bologna, Italy

[44] Univ Turku, Dept Phys & Astron, Tuorla Observ, Turku, Finland

[45] Aalto Univ, Metsahovi Radio Observ, Metsahovintie 114, FI-02540 Kylmala, Finland

[46] CALTECH, Cahill Ctr Astron & Astrophys, Pasadena, CA 91125 USA

[47] NRAO, POB 0, Socorro, NM 87801 USA

[48] INAF Osservatorio Astrofis Torino, I-10025 Pino Torinese, TO, Italy

[49] Purdue Univ, Dept Phys, Northwestern Ave 525, W Lafayette, IN 47907 USA

[50] INAF Osservatorio Astron Roma, I-00040 Monte Porzio Catone, Italy

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2016年 / 459卷 / 03期

基金：

瑞士国家科学基金会; 芬兰科学院; 美国国家航空航天局; 瑞典研究理事会;

关键词：

galaxies: active; BL Lacertae objects: individual: H1722+119; galaxies: distances and redshifts; gamma-rays: galaxies; LARGE-AREA TELESCOPE; BL LACERTAE OBJECTS; ALL-SKY SURVEY; MAGIC TELESCOPES; MAJOR UPGRADE; HELICAL JETS; LAC OBJECTS; DISCOVERY; FERMI; BLAZARS;

D O I：

10.1093/mnras/stw689

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Major Atmospheric Gamma-ray Imaging Cherenkov (MAGIC) telescopes observed the BL Lac object H1722+119 (redshift unknown) for six consecutive nights between 2013 May 17 and 22, for a total of 12.5 h. The observations were triggered by high activity in the optical band measured by the KVA (Kungliga Vetenskapsakademien) telescope. The source was for the first time detected in the very high energy (VHE, E > 100 GeV) gamma-ray band with a statistical significance of 5.9s. The integral flux above 150 GeV is estimated to be (2.0 +/- 0.5) per cent of the Crab nebula flux. We used contemporaneous high energy (HE, 100 MeV < E < 100 GeV) gamma-ray observations from Fermi-Large Area Telescope to estimate the redshift of the source. Within the framework of the current extragalactic background light models, we estimate the redshift to be z = 0.34 +/- 0.15. Additionally, we used contemporaneous X-ray to radio data collected by the instruments on board the Swift satellite, the KVA, and the Owens Valley Radio Observatory telescope to study multifrequency characteristics of the source. We found no significant temporal variability of the flux in the HE and VHE bands. The flux in the optical and radio wavebands, on the other hand, did vary with different patterns. The spectral energy distribution of H1722+119 shows surprising behaviour in the similar to 3 x 10(14)-10(18) Hz frequency range. It can be modelled using an inhomogeneous helical jet synchrotron self-Compton model.

引用

页码：3271 / 3281

页数：11

共 76 条

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Colin, P.
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Contreras, J. L.
Cortina, J.
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Font, L.
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共 76 条

[1] FERMI LARGE AREA TELESCOPE THIRD SOURCE CATALOG
Acero, F.
Ackermann, M.
Ajello, M.
Albert, A.
Atwood, W. B.
Axelsson, M.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Belfiore, A.
Bellazzini, R.
Bissaldi, E.
Blandford, R. D.
Bloom, E. D.
Bogart, J. R.
Bonino, R.
Bottacini, E.
Bregeon, J.
Britto, R. J.
Bruel, P.
Buehler, R.
Burnett, T. H.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caputo, R.
Caragiulo, M.
Caraveo, P. A.
Casandjian, J. M.
Cavazzuti, E.
Charles, E.
Chaves, R. C. G.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Chiaro, G.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Cominsky, L. R.
Conrad, J.
Cutini, S.
D'Ammando, F.
de Angelis, A.
DeKlotz, M.
de Palma, F.
Desiante, R.
Digel, S. W.
Di Venere, L.
[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2015, 218 (02)
[2] THE FERMI LARGE AREA TELESCOPE ON ORBIT: EVENT CLASSIFICATION, INSTRUMENT RESPONSE FUNCTIONS, AND CALIBRATION
Ackermann, M.
Ajello, M.
Albert, A.
Allafort, A.
Atwood, W. B.
Axelsson, M.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Bissaldi, E.
Blandford, R. D.
Bloom, E. D.
Bogart, J. R.
Bonamente, E.
Borgland, A. W.
Bottacini, E.
Bouvier, A.
Brandt, T. J.
Bregeon, J.
Brigida, M.
Bruel, P.
Buehler, R.
Burnett, T. H.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Casandjian, J. M.
Cavazzuti, E.
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[6] Discovery of very high energy γ-rays from 1ES 1011+496 at z=0.212
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[10] MAGIC detection of short-term variability of the high-peaked BL Lac object lES 0806+524
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