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Multiband Optical Photometric Variability of the Blazar OJ 287 from 2015 to 2025

  • Authors: Alok C. Gupta, Karan Dogra, Mark Kidger, Mauri J. Valtonen, Paul J. Wiita, Pankaj Kushwaha, Sergey S. Savchenko, Sofia O. Kurtanidze, Svetlana G. Jorstad, Alan P. Marscher, Katsura Matsumoto, Lang Cui, Shao Ming Hu, Goran Damljanovic, Rumen Bachev, O. Vince, Mai Liao, Zhongxiang Wang, A. Darriba, S. Haque, F. S. Alfaro, J. B. Amatller, J. M. F. Andujar, S. Arnold, T. Arranz, M. Bachini, C. L. Barcelo, S. Boeva, G. A. Borman, D. Boyd, D. Buczinski, J. D. Casal, X. Chen, J. M. Cores, F. C. Cucarella, P. U. Devanand, V. Dhiman, L. T. Espasa, J. H. Fan, R. G. Farfan, J. R. Fernandez, F. Garcia, R. C. García, H. Gaur, J. C. Gomez, J. L. S. Gonzalez, J. L. Gonzalez-Carballo, T. S. Grishina, F. H. Grondona, M. F. Gu, H. Guo, V. A. Hagen-Thorn, G. Hurst, S. Ibryamov, R. Z. Ivanidze, N. James, B. Jardine, S. Johnstone, M. D. Jovanovic, N. Kalita, S. Karge, S. Kishore, E. N. Kopatskaya, O. M. Kurtanidze, A. Kurtenkov, E. G. Larionova, E. R. Lorenz, J. Lozano, E. F. Mananes, F. L. Martínez, M. Mobberley, M. Morales-Aimar, D. A. Morozova, M. G. Nikolashvili, Y. Nikolov, R. N. Nogues, P. A. Novikova, L. M. Penas, A. E. Perez, C. Perello, R. Pickard, F. G. Pinilla, G. Poyner, F. Rahmatullaeva, B. Rajkumar, N. G. Ribes, E. Semkov, E. V. Shishkina, M. Stojanovic, A. Strigachev, T. Tripathi, Yu. V. Troitskaya, I. S. Troitskiy, J. Valero, A. A. Vasilyev, B. Villarroel, A. E. Volvach, L. N. Volvach, S. J. Wagner, Z. R. Weaver, Wen-Xin Yang, Z. Zhang, A. V. Zhovtan, W. Zuo, N. Kojiguchi, Y. Sugiura

Alok C. Gupta et al 2026 The Astrophysical Journal Supplement Series 286 .

  • Provider: AAS Journals

Caption: Figure 5.

The eight spectra observed in the period of 2017 October 21–2017 November 22 and the flux-averaged spectrum (left). All spectra were corrected for Galactic extinction and shifted to source rest frame, with the position of emission lines of Hβ and [O III] λ5007 Å indicated as the vertical red dotted and green dotted lines. The spectral fitting of OJ 287 (right), where the continuum is fitted with a single power law shown as the red dotted line; the black line is the original flux-averaged spectrum and the inset shows the line fitting for [O III] λ5007 Å.

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