{"paper":{"title":"Variability and stability in blazar jets on time scales of years: Optical polarization monitoring of OJ287 in 2005-2009","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Aungwerojwit, A. Berdyugin, A. Donmez, A. Kuzmicz, A. Liakos, A. Mattingly, C. Porowski, C. Villforth, D. Koziel-Wierzbowska, D. L. DePoy, D. Marchev, D. W. Atlee, E. Lindfors, J. Bird, J. C. Yee, J. Eastman, J. Heidt, J.-H. Wu, J. Krzesinski, J. Ohlert, J. Prieto, K. Gazeas, K. Nilsson, K. Sadakane, L. O. Takalo, L. Watson, M. Dietrich, M. Drozdz, M. Kamada, M. Kurpinska-Winiarska, M. Nissinen, M. Pasanen, M. Siwak, M. S. Peeples, M. Winiarski, N. Bergvall, P. Niarchos, R. J. Assef, S. A. Coggins-Hill, S. Dogru, S. Haque, T. Kundera, T. Pursimo, V.-P. Hentunen, W. C. Keel, W. Ogloza, X. Zhou, Y. Efimov","submitted_at":"2009-11-30T21:42:09Z","abstract_excerpt":"(Abridged) OJ287 is a BL Lac object that has shown double-peaked bursts at regular intervals of ~12 yr during the last ~40 yr. We analyse optical photopolarimetric monitoring data from 2005-2009, during which the latest double-peaked outburst occurred. The aim of this study is twofold: firstly, we aim to analyse variability patterns and statistical properties of the optical polarization light-curve. We find a strong preferred position angle in optical polarization. The preferred position angle can be explained by separating the jet emission into two components: an optical polarization core and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.0005","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}