Multiwavelength monitoring and reverberation mapping of a changing look event in the Seyfert galaxy NGC 3516 von Oknyansky, V L, Brotherton, M S, Tsygankov, S S, Dodin, A V, Bao, D-W, Zhao, B-X, Du, P, Burlak, M A, Ikonnikova, N P, Tatarnikov, A M, Belinski, A A, Fedoteva, A A, Shatsky, N I, Mishin, E O, Zheltouhov, S G, Potanin, S A, Wang, J-M, McLane, J N, Kobulnicky, H A, Dale, D A, Zastrocky, T E, Maithil, J, Olson, K A, Adelman, C, Carter, Z, Murphree, A M, Oeur, M, Schonsberg, S, Roth, T

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New changing look case in NGC 1566 von Oknyansky, V L, Winkler, H, Tsygankov, S S, Lipunov, V M, Gorbovskoy, E S, van Wyk, F, Buckley, D A H, Tyurina, N V

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The curtain remains open: NGC 2617 continues in a high state von Oknyansky, V. L., Gaskell, C. M., Huseynov, N. A., Lipunov, V. M., Shatsky, N. I., Tsygankov, S. S., Gorbovskoy, E. S., Mikailov, Kh. M., Tatarnikov, A. M., Buckley, D. A. H., Metlov, V. G., Nadzhip, A. E., Kuznetsov, A. S., Balanutza, P. V., Burlak, M. A., Galazutdinov, G. A., Artamonov, B. P., Salmanov, I. R., Malanchev, K. L., Oknyansky, R. S.

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The post-maximum behaviour of the changing-look Seyfert galaxy NGC 1566 von Oknyansky, V L, Winkler, H, Tsygankov, S S, Lipunov, V M, Gorbovskoy, E S, van Wyk, F, Buckley, D A H, Jiang, B W, Tyurina, N V

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Long-term multiwavelength monitoring and reverberation mapping of NGC 2617 during a changing-look event von Oknyansky, V L, Brotherton, M S, Tsygankov, S S, Dodin, A V, Tatarnikov, A M, Du, P, Bao, D -W, Burlak, M A, Ikonnikova, N P, Lipunov, V M, Gorbovskoy, E S, Metlov, V G, Belinski, A A, Shatsky, N I, Zheltouhov, S G, Maslennikova, N A, Wang, J -M, Zhai, S, Fang, F -N, Fu, Y -X, Bai, H -R, Kasper, D, Huseynov, N A, McLane, J N, Maithil, J, Zastrocky, T E, Olson, K A, Chen, X, Chelouche, D, Oknyansky, R S, Buckley, D A H, Tyurina, N V, Kuznetsov, A S, Rebolo, R L, Zhao, B -X

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Correlation of near-infrared and optical variability of NGC 4151 in 2008–2013 von Oknyansky, V. L., Metlova, N. V., Taranova, O. G., Shenavrin, V. I., Artamonov, B. P., Gaskell, C. M.

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Multiwavelength monitoring and reverberation mapping of NGC 2617 at deepest minimum with a sharp upward turn during 2021–2024 von Oknyansky, V L, Brotherton, M S, Tsygankov, S S, Dodin, A V, Tatarnikov, A M, Du, P, Burlak, M A, Ikonnikova, N P, Metlov, V G, Belinski, A A, Shatsky, N I, Wang, J -M, Bao, D -W, Fang, F, Zhai, S, Fu, Y -X, Bai, H -R, Zastrocky, T E, Chelouche, D, Figaredo, C Sobrino, Kaspi, S, Gaskell, C M

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Supernova 2018aoq and a distance to Seyfert galaxy NGC 4151 von Tsvetkov, D Yu, Baklanov, P V, Potashov, M Sh, Oknyansky, V L, Mikailov, Kh M, Huseynov, N A, Alekberov, I A, Khalilov, O V, Pavlyuk, N N, Metlov, V G, Volkov, I M, Shugarov, S Yu

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Variability and the Size-Luminosity Relation of the Intermediate-mass AGN in NGC 4395 von Cho, Hojin, Woo, Jong-Hak, Hodges-Kluck, Edmund, Son, Donghoon, Shin, Jaejin, Gallo, Elena, Bae, Hyun-Jin, Brink, Thomas G., Cho, Wanjin, Filippenko, Alexei V., Horst, John C., Ili, Dragana, Joner, Michael. D., Kang, Daeun, Kang, Wonseok, Kaspi, Shai, Kim, Taewoo, Kova evi, Andjelka B., Kumar, Sahana, N. Le, Huynh Anh, Nadzhip, A. E., Pozo Nuñez, Francisco, Metlov, V. G., Oknyansky, V. L., Park, Songyoun, Popovi, Luka, Rakshit, Suvendu, Schramm, Malte, Shatsky, N. I., Spencer, Michelle, Sung, Eon-Chang, Sung, Hyun-il, Tatarnikov, A. M., Vince, Oliver

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The Relative Wavelength Independence of IR Time Lags in NGC 4151 during the Years 2010–2015 von Oknyansky, V. L., Shenavrin, V. I., Metlova, N. V., Gaskell, C. M.

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ADDITIONAL SUPPORT FOR RELATIVE WAVELENGTH INDEPENDENCE OF IR LAGS IN NGC 4151 OVER THE PAST DECADE von Oknyansky, V. L, Shenavrin, V. I., Metlova, N. V., Gaskell, C. M.

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The Relative Wavelength Independence of IR Time Lags in NGC 4151 during the Years 2010–2015 von Oknyansky, V. L., Shenavrin, V. I., Metlova, N. V., Gaskell, C. M.

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DISCOVERY OF MORE CHANGING LOOK EVENTS IN NGC 1566 von Oknyansky, V. L., Winkler, H., Tsygankov, S. S., Lipunov, V. M., Gorbovskoy, E. S., Van Wyk, F., Buckley, D.A. H., Tyurina, N. V.

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THE RELATIVE WAVELENGTH INDEPENDENCE OF IR LAGS IN ACTIVE GALACTIC NUCLEI: IMPLICATIONS FOR THE DISTRIBUTION OF THE HOT DUST von Oknyansky, V. L., Gaskell, C. M., Shimanovskaya, E. V.

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ULTI-WAVELENGTH MONITORING OF THE CHANGING-LOOK AGN NGC 2617 DURING STATE CHANGES von Oknyansky, V. L., Gaskell, C. M., Huseynov, N. A., Mikailov, Kh. M., Lipunov, V. M., Shatsky, N. I., Tsygankov, S. S., Gorbovskov, E. S., Tatarnikov, A. M., Metlov, V. G., Malanchev, K. L., Brotherton, M. B., Kasper, D., Du, P., Chen, X., Burlak, M. A., Buckley, D. A. H., Rebolo, R., Serra-Ricart, M., Podesta, R., Levato, H.

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Changing Looks of the Nucleus of Seyfert Galaxy NGC 3516 during 2016–2020 von Oknyansky, V. L., Mikailov, Kh. M., Huseynov, N. A.

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Changing looks of the nucleus of Seyfert galaxy NGC 3516 during 2016-2020 von Oknyansky, V L, Mikailov, Kh M, Huseynov, N A

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The curtain remains open: NGC 2617 continues in a high state von Oknyansky, V L, Gaskell, C M, Huseynov, N A, Lipunov, V M, Shatsky, N I, Tsygankov, S S, Gorbovskoy, E S, Mikailov, Kh M, Tatarnikov, A M, Buckley, D A H, Metlov, V G, Nadzhip, A E, Kuznetsov, A S, Balanutza, P V, Burlak, M A, Galazutdinov, G A, Artamonov, B P, Salmanov, I R, Malanchev, K L, Oknyansky, R S

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The Relative Wavelength Independence of IR Time Lags in NGC4151 During the Years 2010-2015 von Oknyansky, V L, Shenavrin, V I, Metlova, N V, Gaskell, C M

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Multi-wavelenth monitoring of the changing-look AGN NGC 2617 during state changes von Oknyansky, V L, Gaskell, C M, Huseynov, N A, Mikailov, Kh M, Lipunov, V M, Shatsky, N I, Tsygankov, S S, Gorbovskoy, E S, Tatarnikov, A M, Metlov, V G, Malanchev, K L, Brotherton, M B, Kasper, D, P Du, Chen, X, Burlak, M A, Buckley, D A H, Rebolo, R, Serra-Ricart, M, Podesta, R, Levato, H

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