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Alok C. Gupta

aryabhatta research institute of observational sciences

35H-index
216Paper Count
3.3KCitation Count
Published Papers 110
Publication Date
X-Ray Spectral Variability of the TeV High-energy Peaked Blazar PG 1553+113 with XMM-Newton
err2026-05-05
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errP. U. Devanand; Alok C. Gupta; Paul J. Wiita; V. Jithesh; Archana Gupta
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X-Ray Intraday Variability of the Blazar OJ 287 Observed with XMM-Newton
err2026-02-04
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errTao Huang; Alok C. Gupta; Lang Cui; Ashutosh Tripathi; Yongfeng Huang; P. U. Devanand; Xiang Liu
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Identifying the Secondary Jet in the RadioAstron Image of OJ 287
err2025-10-10
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PREAI
errValtonen, Mauri J.; Dey, Lankeswar; Zola, Staszek; Gupta, Alok C.; Kishore, Shubham; Gopakumar, Achamveedu; Wiita, Paul J.; Gu, Minfeng; Nilsson, Kari; Zhang, Zhongli; Hudec, Rene; Matsumoto, Katsura; Drozdz, Marek; Ogloza, Waldemar; Berdyugin, Andrei V.; Reichart, Daniel E.; Mugrauer, Markus; Pursimo, Tapio; Ciprini, Stefano; Nakaoka, Tatsuya; Uemura, Makoto; Imazawa, Ryo; Zejmo, Michal; Kouprianov, Vladimir V.; Davidson Jr, James W.; Sadun, Alberto; Strobl, Jan; Jelinek, Martin; Susobhanan, Abhimanyu
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A Disk-originated 329 Day Quasiperiodic Oscillation in the Seyfert 1 Galaxy J1626+5120
err2025-10-09
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errLitao Zhu; Zhongxiang Wang; Dong Zheng; Alok C. Gupta; Ju-Jia Zhang
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Aligned, Multiple-transient Events in the First Palomar Sky Survey
err2025-10-01
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PREAI
errVillarroel, Beatriz; Solano, Enrique; Guergouri, Hichem; Streblyanska, Alina; Bruehl, Stephen; Andruk, Vitaly M.; Mattsson, Lars; Baer, Rudolf E.; Mimouni, Jamal; Geier, Stefan; Gupta, Alok C.; Okororie, Vanessa; Laggoune, Khaoula; Shultz, Matthew E.; Freitas Jr, Robert A.
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Multiband Optical Variability of the Blazar OP 313 in the Outburst State during 2024–2025
err2025-09-10
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errP. U. Devanand; Alok C. Gupta; Karan Dogra; Shubham Kishore; Tushar Tripathi
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The Intermediate-mass Black Hole Reverberation Mapping Project: First Detection of Mid-infrared Lags in Prototypical Intermediate-mass Black Holes in NGC 4395 and POX 52
err2025-08-11
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PREAI
errJingbo Sun; Hengxiao Guo; Wenwen Zuo; Paulina Lira; Minfeng Gu; Philip G. Edwards; Shu Wang; Jamie Stevens; Tao An; Samuzal Barua; Zhen-yi Cai; Haicheng Feng; Alok C. Gupta; Luis C. Ho; Dragana Ilić; Andjelka B. Kovačević; ShaSha Li; Mar Mezcua; Luka Č. Popović; Paula Sánchez-Sáez; Mouyuan Sun; Rongfeng Shen; Vivian U; Oliver Vince; Junxian Wang; Xuebing Wu; Zhefu Yu; Zhenya Zheng
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Modeling the Multiwavelength Emission of 3C 279 during the 14 yr Fermi-LAT Era
err2025-08-08
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PREAI
errKrishna Mohana A; Alok C. Gupta; Junhui Fan; Narek Sahakyan; Claudia M. Raiteri; Lang Cui; Anne Lähteenmäki; Mark Gurwell; Merja Tornikoski; Massimo Villata
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X-Ray Spectral Variability of 13 TeV High-energy-peaked Blazars with XMM-Newton
err2025-04-30
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errDevanand, P. U.; Gupta, Alok C.; Jithesh, V.; Wiita, Paul J.; Gupta, Archana
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Spectral Energy Distribution Variability of the Blazar OJ 287 During 2009-2021
err2025-01-28
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errZuo, Wenwen; Gupta, Alok C.; Gu, Minfeng; Valtonen, Mauri J.; Jorstad, Svetlana G.; Aller, Margo F.; Lahteenmaeki, Anne; Kiehlmann, Sebastian; Kushwaha, Pankaj; Aller, Hugh D.; Chen, Liang; Readhead, Anthony C. S.; Tornikoski, Merja; Yuan, Qi
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Testing colour-magnitude pattern as a method in the search for changing-look AGNs
err2024-12-19
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errZhu, Li-Tao; Wang, Zhongxiang; Devanand, P. U.; Gupta, Alok C.; Dogra, Karan; Li, Jie; Zhang, Ju-Jia; Ji, Shun-Hao; Sun, Si-Si
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Revisiting Radio Variability of the Blazar 3C 454.3
err2024-12-11
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errTripathi, Ashutosh; Gupta, Alok C.; Smith, Krista Lynne; Wiita, Paul J.; Aller, Margo F.; Volvach, Alexandr E.; Lahteenmaki, Anne; Aller, Hugh D.; Tornikoski, Merja; Volvach, Larisa N.
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Multiband Optical Variability of the Blazar 3C 454.3 on Diverse Timescales
err2024-12-09
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errDogra, Karan; Gupta, Alok C.; Raiteri, C. M.; Villata, M.; Wiita, Paul J.; Kurtanidze, S. O.; Jorstad, S. G.; Bachev, R.; Damljanovic, G.; Lorey, C.; Savchenko, S. S.; Vince, O.; Abdelkareem, M.; Aceituno, F. J.; Acosta-Pulido, J. A.; Agudo, I.; Andreuzzi, G.; Ata, S. A.; Baida, G. V.; Barbieri, L.; Blinov, D. A.; Bonnoli, G.; Borman, G. A.; Carnerero, M. I.; Carosati, D.; Casanova, V.; Chen, W. P.; Cui, Lang; Elhosseiny, E. G.; Elsaesser, D.; Escudero, J.; Feige, M.; Gazeas, K.; Gennadievna, L. E.; Grishina, T. S.; Gu, Minfeng; Hagen-Thorn, V. A.; Hemrich, F.; Hsiao, H. Y.; Ismail, M.; Ivanidze, R. Z.; Jovanovic, M. D.; Kamel, T. M.; Kimeridze, G. N.; Kopatskaya, E. N.; Kuberek, D.; Kurtanidze, O. M.; Kurtenkov, A.; Larionov, V. M.; Larionova, L. V.; Liao, M.; Lin, H. C.; Mannheim, K.; Marchini, A.; Marinelli, C.; Marscher, A. P.; Morcuende, D.; Morozova, D. A.; Nazarov, S. V.; Nikolashvili, M. G.; Reinhart, D.; Santos, J. O.; Scherbantin, A.; Semkov, E.; Shishkina, E. V.; Sigua, L. A.; Singh, A. K.; Sota, A.; Steineke, R.; Stojanovic, M.; Strigachev, A.; Takey, A.; Tawfeek, Amira A.; Troitskiy, I. S.; Troitskaya, Y. V.; Tsai, An-Li; Vasilyev, A. A.; Vrontaki, K.; Zhang, Zhongli; Zhovtan, A. V.; Zottmann, N.; Zuo, Wenwen
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A wiggling filamentary jet at the origin of the blazar multi-wavelength behaviour
err2024-12-02
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PREAI
errRaiteri, C. M.; Villata, M.; Carnerero, M. I.; Kurtanidze, S. O.; Mirzaqulov, D. O.; Benitez, E.; Bonnoli, G.; Carosati, D.; Acosta-Pulido, J. A.; Agudo, I.; Andreeva, T. S.; Apolonio, G.; Bachev, R.; Borman, G. A.; Bozhilov, V.; Brown, L. F.; Carbonell, W.; Casadio, C.; Chen, W. P.; Damljanovic, G.; Ehgamberdiev, S. A.; Elsaesser, D.; Escudero, J.; Feige, M.; Fuentes, A.; Gabellini, D.; Gazeas, K.; Giroletti, M.; Grishina, T. S.; Gupta, A. C.; Gurwell, M. A.; Hagen-Thorn, V. A.; Hamed, G. M.; Hiriart, D.; Hodges, M.; Ivanidze, R. Z.; Ivanov, D. V.; Joner, M. D.; Jorstad, S. G.; Jovanovic, M. D.; Kiehlmann, S.; Kimeridze, G. N.; Kopatskaya, E. N.; Kovalev, Yu. A.; Kovalev, Y. Y.; Kurtanidze, O. M.; Kurtenkov, A.; Larionova, E. G.; Lessing, A.; Lin, H. C.; Lopez, J. M.; Lorey, C.; Ludwig, J.; Marchili, N.; Marchini, A.; Marscher, A. P.; Matsumoto, K.; Max-Moerbeck, W.; Mihov, B.; Minev, M.; Mingaliev, M. G.; Modaressi, A.; Morozova, D. A.; Mortari, F.; Mufakharov, T. V.; Myserlis, I.; Nikolashvili, M. G.; Pearson, T. J.; Popkov, A. V.; Rahimov, I. A.; Readhead, A. C. S.; Reinhart, D.; Reeves, R.; Righini, S.; Romanov, F. D.; Savchenko, S. S.; Semkov, E.; Shishkina, E. V.; Sigua, L. A.; Slavcheva-Mihova, L.; Sotnikova, Yu. V.; Steineke, R.; Stojanovic, M.; Strigachev, A.; Takey, A.; Traianou, E.; Troitskaya, Yu. V.; Troitskiy, I. S.; Tsai, A. L.; Valcheva, A.; Vasilyev, A. A.; Verna, G.; Vince, O.; Vrontaki, K.; Weaver, Z. R.; Webb, J.; Yuldoshev, Q. X.; Zaharieva, E.; Zhovtan, A. V.
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Optical Continuum Reverberation Mapping of a Candidate IMBH in a Nearby Seyfert 1 Galaxy
err2024-10-17
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errZuo, Wenwen; Guo, Hengxiao; Sun, Jingbo; Yuan, Qi; Lira, Paulina; Gu, Minfeng; Edwards, Philip G.; Gupta, Alok C.; Kishore, Shubham; Stevens, Jamie; An, Tao; Cai, Zhen-Yi; Feng, Hai-Cheng; Ho, Luis C.; Ilic, Dragana; Kovacevic, Andjelka B.; Li, Sha-Sha; Mezcua, Mar; Popovic, Luka C.; Sun, Mouyuan; Tripathi, Tushar; Vivian, U.; Vince, Oliver; Wang, Jianguo; Wang, Junxian; Wang, Shu; Wu, Xuebing; Zheng, Zhenya
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X-ray flux and spectral variability of the blazar OJ 287 with Suzaku
err2024-07-15
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errZhou, Dongtao; Zhang, Zhongli; Gupta, Alok C.; Kushwaha, Pankaj; Wiita, Paul J.; Gu, Minfeng; Xu, Haiguang
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Evidence of Jet Activity from the Secondary Black Hole in the OJ 287 Binary System
err2024-06-11
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errValtonen, Mauri J.; Zola, Staszek; Gupta, Alok C.; Kishore, Shubham; Gopakumar, Achamveedu; Jorstad, Svetlana G.; Wiita, Paul J.; Gu, Minfeng; Nilsson, Kari; Marscher, Alan P.; Zhang, Zhongli; Hudec, Rene; Matsumoto, Katsura; Drozdz, Marek; Ogloza, Waldemar; Berdyugin, Andrei V.; Reichart, Daniel E.; Mugrauer, Markus; Dey, Lankeswar; Pursimo, Tapio; Lehto, Harry J.; Ciprini, Stefano; Nakaoka, T.; Uemura, M.; Imazawa, Ryo; Zejmo, Michal; Kouprianov, Vladimir V.; Davidson Jr, James W.; Sadun, Alberto; Strobl, Jan; Weaver, Z. R.; Jelinek, Martin
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