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Article

Polarization and Spectral Energy Distribution in OJ 287 during the 2016/17 Outbursts

by
Mauri Valtonen
1,2,
Stanislaw Zola
3,4,*,
Helen Jermak
5,
Stefano Ciprini
6,7,
Rene Hudec
8,9,
Lankeswar Dey
10,
Achamveedu Gopakumar
10,
Daniel L. Reichart
11,
Daniel B. Caton
12,
Kosmas Gazeas
13,
Katsura Matsumoto
14,
Waldemar Ogloza
4,
Marek Drozdz
4,
Fahri Alicavus
15,16,
Oleksandr Baransky
17,
Andrei Berdyugin
2,
Panos Boumis
18,
Yurii Bufan
19,20,
Bartlomiej Debski
3,
Huseyin Er
21,
Ahmet Erdem
15,16,
Vira Godunova
19,
Shirin Haque
22,
Vivian L. Hoette
23,
Jan Janik
24,
Mark Kidger
25,
Tomasz Kundera
3,
Sebastian Kurowski
3,
Alexis Liakos
18,
Isa Mohammed
26,
Kari Nilsson
1,
Urszula Pajdosz
3,
Vilppu Piirola
1,2,
Tapio Pursimo
27,
Brandon Rajkumar
22,
Andrii O. Simon
28,
Michal Siwak
4,
Eda Sonbas
29,
Ian A. Steele
5,
Volodymir V. Vasylenko
28,
Michal Zejmo
30 and
Pawel Zielinski
24add Show full author list remove Hide full author list
1
Finnish Centre for Astronomy with ESO, University of Turku, 21500 Kaarina, Finland
2
Tuorla Observatory, Department of Physics and Astronomy, University of Turku, 21500 Kaarina, Finland
3
Astronomical Observatory, Jagiellonian Unviersity, ul. Orla 171, 30-244 Krakow, Poland
4
Mt. Suhora Observatory, Pedagogical University, ul. Podchorazych 2, 30-084 Krakow, Poland
5
Astrophysics Research Institute, Liverpool John Moores University, IC2, Liverpool Science Park, Brownlow Hill L3 5RF, UK
6
Space Science Data Center—Agenzia Spaziale Italiana, via del Politecnico, snc, I-00133 Roma, Italy
7
Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, I-06123 Perugia, Italy
8
Faculty of Electrical Engineering, Czech Technical University in Prague, Technicka 2, CZ-166 27 Praha 6, Czech Republic
9
Engelhardt Astronomical observatory, Kazan Federal University, Kremlyovskaya street 18, Kazan 420008, Russia
10
Department of Astronomy and Astrophysics, Tata Institute of Fundamental Research, Mumbai 400005, India
11
Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
12
Dark Sky Observatory, Department of Physics and Astronomy, Appalachian State University, Boone, NC 28608, USA
13
Section of Astrophysics, Astronomy and Mechanics, Department of Physics, National & Kapodistrian University of Athens, Zografos, Athens GR-15784, Greece
14
Astronomical Institute, Osaka Kyoiku University, 4-698 Asahigaoka, Kashiwara, Osaka 582-8582, Japan
15
Department of Physics, Faculty of Arts and Sciences, Canakkale Onsekiz Mart University, Canakkale TR-17100, Turkey
16
Astrophysics Research Center and Ulupinar Observatory, Canakkale Onsekiz Mart University, Canakkale TR-17100, Turkey
17
Observatory of Taras Shevshenko National University of Kyiv, Observatorna str. 3, 04053 Kyiv, Ukraine
18
Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing, National Observatory of Athens, Metaxa & Vas. Pavlou St., Penteli, Athens GR-15236, Greece
19
ICAMER Observatory of NASU, 27, Acad. Zabolotnoho str., 03143 Kyiv, Ukraine
20
Astronomical Observatory of National Ivan Franko University of Lviv, 8, Kyryla i Methodia str., 79005 Lviv, Ukraine
21
Department of Physics, Faculty of Science, Atatürk University, Erzurum 25240, Turkey
22
Department of Physics, University of the West Indies, St Augustine, Trinidad
23
Yerkes Observatory, Department of Astronomy and Astrophysics, University of Chicago, 373 W. Geneva St., Williams Bay, WI 53191, USA
24
Department of Theoretical Physics and Astrophysics, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
25
Herschel Science Centre, ESAC, European Space Agency, 28692 Villanueva de la Cañada, 28692 Madrid, Spain
26
Caribbean Institute of Astronomy, c/o Department of Physics, University of the West Indies, St. Augustine, Trinidad
27
Nordic Optical Telescope, Apartado 474, Santa Cruz de La Palma E-38700, Spain
28
Astronomy and Space Physics Department, Taras Shevshenko National University of Kyiv, Volodymyrska str. 60, 01033 Kyiv, Ukraine
29
Department of Physics, University of Adiyaman, Adiyaman 02040, Turkey
30
Janusz Gil Institute of Astronomy, University of Zielona Góra, Szafrana 2, PL-65-516 Zielona Góra, Poland
 
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*
Author to whom correspondence should be addressed.
Galaxies 2017, 5(4), 83; https://doi.org/10.3390/galaxies5040083
Received: 29 August 2017 / Revised: 8 November 2017 / Accepted: 9 November 2017 / Published: 20 November 2017
(This article belongs to the Special Issue Polarised Emission from Astrophysical Jets)
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Abstract

We report optical photometric and polarimetric observations of the blazar OJ 287 gathered during 2016/17. The high level of activity, noticed after the General Relativity Centenary flare, is argued to be part of the follow-up flares that exhibited high levels of polarization and originated in the primary black hole jet. We propose that the follow-up flares were induced as a result of accretion disk perturbations, travelling from the site of impact towards the primary SMBH. The timings inferred from our observations allowed us to estimate the propagation speed of these perturbations. Additionally, we make predictions for the future brightness of OJ 287. View Full-Text
Keywords: galaxies: active; BL lacertae objects: individual (OJ 287); super massive black holes galaxies: active; BL lacertae objects: individual (OJ 287); super massive black holes
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MDPI and ACS Style

Valtonen, M.; Zola, S.; Jermak, H.; Ciprini, S.; Hudec, R.; Dey, L.; Gopakumar, A.; Reichart, D.L.; Caton, D.B.; Gazeas, K.; Matsumoto, K.; Ogloza, W.; Drozdz, M.; Alicavus, F.; Baransky, O.; Berdyugin, A.; Boumis, P.; Bufan, Y.; Debski, B.; Er, H.; Erdem, A.; Godunova, V.; Haque, S.; Hoette, V.L.; Janik, J.; Kidger, M.; Kundera, T.; Kurowski, S.; Liakos, A.; Mohammed, I.; Nilsson, K.; Pajdosz, U.; Piirola, V.; Pursimo, T.; Rajkumar, B.; Simon, A.O.; Siwak, M.; Sonbas, E.; Steele, I.A.; Vasylenko, V.V.; Zejmo, M.; Zielinski, P. Polarization and Spectral Energy Distribution in OJ 287 during the 2016/17 Outbursts. Galaxies 2017, 5, 83. https://doi.org/10.3390/galaxies5040083

AMA Style

Valtonen M, Zola S, Jermak H, Ciprini S, Hudec R, Dey L, Gopakumar A, Reichart DL, Caton DB, Gazeas K, Matsumoto K, Ogloza W, Drozdz M, Alicavus F, Baransky O, Berdyugin A, Boumis P, Bufan Y, Debski B, Er H, Erdem A, Godunova V, Haque S, Hoette VL, Janik J, Kidger M, Kundera T, Kurowski S, Liakos A, Mohammed I, Nilsson K, Pajdosz U, Piirola V, Pursimo T, Rajkumar B, Simon AO, Siwak M, Sonbas E, Steele IA, Vasylenko VV, Zejmo M, Zielinski P. Polarization and Spectral Energy Distribution in OJ 287 during the 2016/17 Outbursts. Galaxies. 2017; 5(4):83. https://doi.org/10.3390/galaxies5040083

Chicago/Turabian Style

Valtonen, Mauri, Stanislaw Zola, Helen Jermak, Stefano Ciprini, Rene Hudec, Lankeswar Dey, Achamveedu Gopakumar, Daniel L. Reichart, Daniel B. Caton, Kosmas Gazeas, Katsura Matsumoto, Waldemar Ogloza, Marek Drozdz, Fahri Alicavus, Oleksandr Baransky, Andrei Berdyugin, Panos Boumis, Yurii Bufan, Bartlomiej Debski, Huseyin Er, Ahmet Erdem, Vira Godunova, Shirin Haque, Vivian L. Hoette, Jan Janik, Mark Kidger, Tomasz Kundera, Sebastian Kurowski, Alexis Liakos, Isa Mohammed, Kari Nilsson, Urszula Pajdosz, Vilppu Piirola, Tapio Pursimo, Brandon Rajkumar, Andrii O. Simon, Michal Siwak, Eda Sonbas, Ian A. Steele, Volodymir V. Vasylenko, Michal Zejmo, and Pawel Zielinski. 2017. "Polarization and Spectral Energy Distribution in OJ 287 during the 2016/17 Outbursts" Galaxies 5, no. 4: 83. https://doi.org/10.3390/galaxies5040083

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