{"paper":{"title":"Variable optical polarization during high state in gamma-ray loud narrow line Seyfert 1 galaxy 1H 0323+342","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.GA","authors_text":"Akihiro Doi, Akira Arai, Daisuke Kuroda, Hidekazu Hanayama, Hideyuki Izumiura, Hiroshi Akitaya, Jun Takahashi, Katsuhiro L. Murata, Katsutoshi Takaki, Kazuhiro Sekiguchi, Kenji Kawaguchi, Kenzo Kinugasa, Koji S. Kawabata, Mahito Sasada, Makoto Uemura, Makoto Watanabe, Masahiko Hayashi, Masayuki Yamanaka, Michitoshi Yoshida, Nobuyuki Kawai, Osamu Hashimoto, Ryo Miyanoshita, Ryosuke Itoh, Takahiro Nagayama, Takahiro Ui, Takashi Ohsugi, Takeshi Miyaji, Tomohito Ohshima, Tomoki Morokuma, Yasushi Fukazawa, Yasuyuki T. Tanaka, Yoshihiko Saito, Yoshiyuki Inoue, Yuhei Takagi, Yuka Kanda, Yuki Moritani, Yumiko Oasa","submitted_at":"2014-05-15T03:00:30Z","abstract_excerpt":"We present results of optical polarimetric and multi-band photometric observations for gamma-ray loud narrow-line Seyfert 1 galaxy 1H 0323+342. This object has been monitored by 1.5 m Kanata telescope since 2012 September but following a gamma-ray flux enhancement detected by Fermi-LAT on MJD 56483 (2013 July 10) dense follow-up was performed by ten 0.5-2.0 m telescopes in Japan over one week. The 2-year R_C-band light curve showed clear brightening corresponding to the gamma-ray flux increase and then decayed gradually. The high state as a whole lasted for ~20 days, during which we clearly de"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.3731","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"}