<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Valtonen, M. J.</style></author><author><style face="normal" font="default" size="100%">Zola, S.</style></author><author><style face="normal" font="default" size="100%">Ciprini, S.</style></author><author><style face="normal" font="default" size="100%">Gopakumar, A.</style></author><author><style face="normal" font="default" size="100%">Matsumoto, K.</style></author><author><style face="normal" font="default" size="100%">Sadakane, K.</style></author><author><style face="normal" font="default" size="100%">Kidger, M.</style></author><author><style face="normal" font="default" size="100%">Gazeas, K.</style></author><author><style face="normal" font="default" size="100%">Nilsson, K.</style></author><author><style face="normal" font="default" size="100%">Berdyugin, A.</style></author><author><style face="normal" font="default" size="100%">Piirola, V.</style></author><author><style face="normal" font="default" size="100%">Jermak, H.</style></author><author><style face="normal" font="default" size="100%">Baliyan, K. S.</style></author><author><style face="normal" font="default" size="100%">Alicavus, F.</style></author><author><style face="normal" font="default" size="100%">Boyd, D.</style></author><author><style face="normal" font="default" size="100%">Campas Torrent, M.</style></author><author><style face="normal" font="default" size="100%">Campos, F.</style></author><author><style face="normal" font="default" size="100%">Carrillo Gómez, J.</style></author><author><style face="normal" font="default" size="100%">Caton, D. B.</style></author><author><style face="normal" font="default" size="100%">Chavushyan, V.</style></author><author><style face="normal" font="default" size="100%">Dalessio, J.</style></author><author><style face="normal" font="default" size="100%">Debski, B.</style></author><author><style face="normal" font="default" size="100%">Dimitrov, D.</style></author><author><style face="normal" font="default" size="100%">Drozdz, M.</style></author><author><style face="normal" font="default" size="100%">Er, H.</style></author><author><style face="normal" font="default" size="100%">Erdem, A.</style></author><author><style face="normal" font="default" size="100%">Escartin Pérez, A.</style></author><author><style face="normal" font="default" size="100%">Fallah Ramazani, V.</style></author><author><style face="normal" font="default" size="100%">Filippenko, A. V.</style></author><author><style face="normal" font="default" size="100%">Ganesh, S.</style></author><author><style face="normal" font="default" size="100%">Garcia, F</style></author><author><style face="normal" font="default" size="100%">Gómez Pinilla, F.</style></author><author><style face="normal" font="default" size="100%">Gopinathan, M.</style></author><author><style face="normal" font="default" size="100%">Haislip, J. B.</style></author><author><style face="normal" font="default" size="100%">Hudec, R.</style></author><author><style face="normal" font="default" size="100%">Hurst, G.</style></author><author><style face="normal" font="default" size="100%">Ivarsen, K. M.</style></author><author><style face="normal" font="default" size="100%">Jelinek, M.</style></author><author><style face="normal" font="default" size="100%">Joshi, A.</style></author><author><style face="normal" font="default" size="100%">Kagitani, M.</style></author><author><style face="normal" font="default" size="100%">Kaur, N.</style></author><author><style face="normal" font="default" size="100%">Keel, W. C.</style></author><author><style face="normal" font="default" size="100%">LaCluyze, A. P.</style></author><author><style face="normal" font="default" size="100%">Lee, B. C.</style></author><author><style face="normal" font="default" size="100%">Lindfors, E.</style></author><author><style face="normal" font="default" size="100%">Lozano de Haro, J.</style></author><author><style face="normal" font="default" size="100%">Moore, J. P.</style></author><author><style face="normal" font="default" size="100%">Mugrauer, M.</style></author><author><style face="normal" font="default" size="100%">Naves Nogues, R.</style></author><author><style face="normal" font="default" size="100%">Neely, A. W.</style></author><author><style face="normal" font="default" size="100%">Nelson, R. H.</style></author><author><style face="normal" font="default" size="100%">Ogloza, W.</style></author><author><style face="normal" font="default" size="100%">Okano, S.</style></author><author><style face="normal" font="default" size="100%">Pandey, J. C.</style></author><author><style face="normal" font="default" size="100%">Perri, M.</style></author><author><style face="normal" font="default" size="100%">Pihajoki, P.</style></author><author><style face="normal" font="default" size="100%">Poyner, G.</style></author><author><style face="normal" font="default" size="100%">Provencal, J.</style></author><author><style face="normal" font="default" size="100%">Pursimo, T.</style></author><author><style face="normal" font="default" size="100%">Raj, A.</style></author><author><style face="normal" font="default" size="100%">Reichart, D. E.</style></author><author><style face="normal" font="default" size="100%">Reinthal, R.</style></author><author><style face="normal" font="default" size="100%">Sadegi, S.</style></author><author><style face="normal" font="default" size="100%">Sakanoi, T.</style></author><author><style face="normal" font="default" size="100%">Salto González, J. -L.</style></author><author><style face="normal" font="default" size="100%">Sameer</style></author><author><style face="normal" font="default" size="100%">Schweyer, T.</style></author><author><style face="normal" font="default" size="100%">Siwak, M.</style></author><author><style face="normal" font="default" size="100%">Soldán Alfaro, F. C.</style></author><author><style face="normal" font="default" size="100%">Sonbas, E.</style></author><author><style face="normal" font="default" size="100%">Steele, I.</style></author><author><style face="normal" font="default" size="100%">Stocke, J. T.</style></author><author><style face="normal" font="default" size="100%">Strobl, J.</style></author><author><style face="normal" font="default" size="100%">Takalo, L. O.</style></author><author><style face="normal" font="default" size="100%">Tomov, T.</style></author><author><style face="normal" font="default" size="100%">Tremosa Espasa, L.</style></author><author><style face="normal" font="default" size="100%">Valdes, J. R.</style></author><author><style face="normal" font="default" size="100%">Valero Pérez, J.</style></author><author><style face="normal" font="default" size="100%">Verrecchia, F.</style></author><author><style face="normal" font="default" size="100%">Webb, J. R.</style></author><author><style face="normal" font="default" size="100%">Yoneda, M.</style></author><author><style face="normal" font="default" size="100%">Zejmo, M.</style></author><author><style face="normal" font="default" size="100%">Zheng, W.</style></author><author><style face="normal" font="default" size="100%">Telting, J.</style></author><author><style face="normal" font="default" size="100%">Saario, J.</style></author><author><style face="normal" font="default" size="100%">Reynolds, T.</style></author><author><style face="normal" font="default" size="100%">Kvammen, A.</style></author><author><style face="normal" font="default" size="100%">Gafton, E.</style></author><author><style face="normal" font="default" size="100%">Karjalainen, R.</style></author><author><style face="normal" font="default" size="100%">Harmanen, J.</style></author><author><style face="normal" font="default" size="100%">Blay, P.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Primary Black Hole Spin in OJ 287 as Determined by the General Relativity Centenary Flare</style></title><short-title><style face="normal" font="default" size="100%">The Astrophysical Journal</style></short-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Astrophysics - High Energy Astrophysical Phenomena</style></keyword><keyword><style  face="normal" font="default" size="100%">black hole physics</style></keyword><keyword><style  face="normal" font="default" size="100%">quasars: general</style></keyword><keyword><style  face="normal" font="default" size="100%">quasars: individual: OJ 287</style></keyword><keyword><style  face="normal" font="default" size="100%">quasars: supermassive black holes</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2016</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2016/03/1</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://ui.adsabs.harvard.edu/abs/2016ApJ...819L..37V</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">819</style></volume><pages><style face="normal" font="default" size="100%">L37</style></pages><isbn><style face="normal" font="default" size="100%">0004-637X</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">OJ 287 is a quasi-periodic quasar with roughly 12 year optical cycles. It displays prominent outbursts that are predictable in a binary black hole model. The model predicted a major optical outburst in 2015 December. We found that the outburst did occur within the expected time range, peaking on 2015 December 5 at magnitude 12.9 in the optical R-band. Based on Swift/XRT satellite measurements and optical polarization data, we find that it included a major thermal component. Its timing provides an accurate estimate for the spin of the primary black hole, χ =0.313+/- 0.01. The present outburst also confirms the established general relativistic properties of the system such as the loss of orbital energy to gravitational radiation at the 2% accuracy level, and it opens up the possibility of testing the black hole no-hair theorem with 10% accuracy during the present decade.</style></abstract></record></records></xml>