{"paper":{"title":"Long-term multiwavelength monitoring and reverberation mapping of NGC 2617 during a changing-look event","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. A. Belinski, A. M. Tatarnikov, A. S. Kuznetsov, A. V. Dodin, B. -X. Zhao, D. A. H. Buckley, D. Chelouche, D. Kasper, D. -W. Bao, E. S. Gorbovskoy, F. -N. Fang, H. -R. Bai, J. Maithil, J. -M. Wang, J. N. Mclane, K. A. Olson, M. A. Burlak, M. S. Brotherton, N. A. Huseynov, N. A. Maslennikova, N. I. Shatsky, N. P. Ikonnikova, N. V. Tyurina, P. Du, R. L. Rebolo, R.S. Oknyansky, S. G. Zheltouhov, S. S. Tsygankov, S. Zhai, T. E. Zastrocky, V. G. Metlov, V. L. Oknyansky, V. M. Lipunov, X. Chen, Y. -X. Fu","submitted_at":"2023-08-09T10:34:28Z","abstract_excerpt":"We present the results of photometric and spectroscopic monitoring campaigns of the changing look AGN NGC~2617 carried out from 2016 until 2022 and covering the wavelength range from the X-ray to the near-IR. The facilities included the telescopes of the SAI MSU, MASTER Global Robotic Net, the 2.3-m WIRO telescope, Swift, and others. We found significant variability at all wavelengths and, specifically, in the intensities and profiles of the broad Balmer lines. We measured time delays of ~ 6 days (~ 8 days) in the responses of the H-beta (H-alpha) line to continuum variations. We found the X-r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.04855","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2308.04855/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}