Publication details

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

Authors	VALTONEN Mauri ZOLA Stanislaw JERMAK Helen CIPRINI Stefano HUDEC Rene DEY Lankeswar GOPAKUMAR Achamveedu REICHART Daniel L. CATON Daniel B. GAZEAS Kosmas MATSUMOTO Katsura OGLOZA Waldemar DRÓŻDŻ Marek ALICAVUS Fahri BARANSKY Oleksandr BERDYUGIN Andrei BOUMIS Panos BUFAN Yurii DEBSKI Bartlomiej ER Huseyin ERDEM Ahmet GODUNOVA Vira HAQUE Shirin HOETTE Vivian L. JANÍK Jan KIDGER Mark KUNDERA Tomasz KUROWSKI Sebastian LIAKOS Alexis MOHAMMED Isa NILSSON Kari PAJDOSZ Urszula PIIROLA Vilppu PURSIMO Tapio RAJKUMAR Brandon SIMON Andrii O. SIWAK Michal SONBAS Eda STEELE Ian A. VASYLENKO Volodymir V. ZEJMO Michal ZIELIŃSKI Pawel
Year of publication	2017
Type	Article in Periodical
Magazine / Source	Galaxies
MU Faculty or unit	Faculty of Science
Citation
Doi	http://dx.doi.org/10.3390/galaxies5040083
Field	Astronomy and astrophysics
Keywords	galaxies: active; BL lacertae objects: individual (OJ 287); super massive black holes
Description	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.