Sergey
Tsygankov

University Research Fellow, Tuorla Observatory

Contact

+358 29 450 4519
+358 50 412 7281
Vesilinnantie 5
20500
Turku

Publications

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High Optical-to-X-Ray Polarization Ratio Reveals Compton Scattering in BL Lacertae’s Jet (2025)

Astrophysical Journal Letters
Agudo, Ivan; Liodakis, Ioannis; Otero-Santos, Jorge; Middei, Riccardo; Marscher, Alan; Jorstad, Svetlana; Zhang, Haocheng; Li, Hui; Di Gesu, Laura; Romani, Roger W.; Kim, Dawoon E.; Fenu, Francesco; Marshall, Herman L.; Pacciani, Luigi; Pedrosa, Juan Escudero; Aceituno, Francisco Jose; Agis-Gonzalez, Beatriz; Bonnoli, Giacomo; Casanova, Victor; Morcuende, Daniel; Piirola, Vilppu; Sota, Alfredo; Kouch, Pouya M.; Lindfors, Elina; McCall, Callum; Jermak, Helen E.; Steele, Iain A.; Borman, George A.; Grishina, Tatiana S.; Hagen-Thorn, Vladimir A.; Kopatskaya, Evgenia N.; Larionova, Elena G.; Morozova, Daria A.; Savchenko, Sergey S.; Shishkina, Ekaterina V.; Troitskiy, Ivan S.; Troitskaya, Yulia V.; Vasilyev, Andrey A.; Zhovtan, Alexey V.; Myserlis, Ioannis; Gurwell, Mark; Keating, Garrett; Rao, Ramprasad; Kang, Sincheol; Lee, Sang-Sung; Kim, Sanghyun; Cheong, Whee Yeon; Jeong, Hyeon-Woo; Angelakis, Emmanouil; Kraus, Alexander; Blinov, Dmitry; Maharana, Siddharth; Bachev, Rumen; Jormanainen, Jenni; Nilsson, Kari; Fallah Ramazani, Vandad; Casadio, Carolina; Fuentes, Antonio; Traianou, Efthalia; Thum, Clemens; Gomez, Jose L.; Antonelli, Lucio Angelo; Bachetti, Matteo; Baldini, Luca; Baumgartner, Wayne H.; Bellazzini, Ronaldo; Bianchi, Stefano; Bongiorno, Stephen D.; Bonino, Raffaella; Brez, Alessandro; Bucciantini, Niccolo; Capitanio, Fiamma; Castellano, Simone; Cavazzuti, Elisabetta; Chen, Chien-Ting; Ciprini, Stefano; Costa, Enrico; De Rosa, Alessandra; Del Monte, Ettore; Di Lalla, Niccolo; Di Marco, Alessandro; Donnarumma, Immacolata; Doroshenko, Victor; Dovciak, Michal; Ehlert, Steven R.; Enoto, Teruaki; Evangelista, Yuri; Fabiani, Sergio; Ferrazzoli, Riccardo; Garcia, Javier A.; Gunji, Shuichi; Hayashida, Kiyoshi; Heyl, Jeremy; Iwakiri, Wataru; Kaaret, Philip; Karas, Vladimir; Kislat, Fabian; Kitaguchi, Takao; Kolodziejczak, Jeffery J.; Krawczynski, Henric; La Monaca, Fabio; Latronico, Luca; Maldera, Simone; Manfreda, Alberto; Marin, Frederic; Marinucci, Andrea; Massaro, Francesco; Matt, Giorgio; Mitsuishi, Ikuyuki; Mizuno, Tsunefumi; Muleri, Fabio; Negro, Michela; Ng, Chi-Yung; O'Dell, Stephen L.; Omodei, Nicola; Oppedisano, Chiara; Papitto, Alessandro; Pavlov, George G.; Peirson, Abel L.; Perri, Matteo; Pesce-Rollins, Melissa; Petrucci, Pierre-Olivier; Pilia, Maura; Possenti, Andrea; Poutanen, Juri; Puccetti, Simonetta; Ramsey, Brian D.; Rankin, John; Ratheesh, Ajay; Roberts, Oliver J.; Sgro, Carmelo; Slane, Patrick; Soffitta, Paolo; Spandre, Gloria; Swartz, Douglas A.; Tamagawa, Toru; Tavecchio, Fabrizio; Taverna, Roberto; Tawara, Yuzuru; Tennant, Allyn F.; Thomas, Nicholas E.; Tombesi, Francesco; Trois, Alessio; Tsygankov, Sergey S.; Turolla, Roberto; Vink, Jacco; Weisskopf, Martin C.; Wu, Kinwah; Xie, Fei; Zane, Silvia
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )

Multiwavelength monitoring and reverberation mapping of NGC 2617 at deepest minimum with a sharp upward turn during 2021-2024 (2025)

Monthly Notices of the Royal Astronomical Society
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.
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )

Optical and near-infrared polarization of the black hole X-ray binary A0620-00 in quiescence (2025)

Astronomy and Astrophysics
Kravtsov, Vadim; Veledina, Alexandra; Berdyugin, Andrei V.; Poutanen, Juri; Tsygankov, Sergey S.; Shahbaz, Tariq; Torres, Manuel A. P.; Jermak, Helen E.; Mccall, Callum; Steele, Iain A.; Kajava, Jari J. E.; Piirola, Vilppu; Sakanoi, Takeshi; Kagitani, Masato; Berdyugina, Svetlana V.
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )

Exploring polarization and geometry in the X-ray pulsar 4U 1538-52 (2025)

Astronomy and Astrophysics
Loktev, Vladislav; Forsblom, Sofia V.; Tsygankov, Sergey S.; Poutanen, Juri; Mushtukov, Alexander A.; Di Marco, Alessandro; Heyl, Jeremy; Kelly, Ruth M. E.; La Monaca, Fabio; Ng, Mason; Ravi, Swati; Salganik, Alexander; Santangelo, Andrea; Suleimanov, Valery F.; Zane, Silvia
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )

Physics of strong magnetism with eXTP (2025)

SCIENCE CHINA Physics, Mechanics and Astronomy
Ge, Mingyu; Ji, Long; Taverna, Roberto; Tsygankov, Sergey; Xu, Yanjun; Santangelo, Andrea; Zane, Silvia; Zhang, Shuang-Nan; Feng, Hua; Chen, Wei; Cheng, Quan; Hou, Xian; Imbrogno, Matteo; Israel, Gian Luca; Kelly, Ruth; Kong, Ling-Da; Liu, Kuan; Mushtukov, Alexander; Poutanen, Juri; Suleimanov, Valery; Tao, Lian; Tong, Hao; Turolla, Roberto; Wang, Weihua; Ye, Wentao; Zhao, Qing-Chang; Brice, Nabil; Geng, Jinjun; Lin, Lin; Wang, Wei-Yang; Xie, Fei; Xiong, Shao-Lin; Zhang, Shu; Fu, Yucong; Lai, Dong; Li, Jian; Li, Pan-Ping; Li, Xiaobo; Li, Xinyu; Liu, Honghui; Liu, Jiren; Peng, Jingqiang; Shui, Qingcang; Tuo, Youli; Wang, Hongguang; Wang, Wei; Weng, Shanshan; You, Yuan; Zheng, Xiaoping; Zhou, Xia
(A2 Vertaisarvioitu katsausartikkeli tieteellisessä lehdessä)

Variability of X-ray polarization of Cyg X-1 (2025)

Astronomy and Astrophysics
Kravtsov, Vadim; Bocharova, Anastasiia; Veledina, Alexandra; Poutanen, Juri; Hughes, Andrew K.; Dovčiak, Michal; Egron, Elise; Muleri, Fabio; Podgorny, Jakub; Svoboda, Jiri; Forsblom, Sofia V.; Berdyugin, Andrei V.; Blinov, Dmitry; Bright, Joe S.; Carotenuto, Francesco; Green, David A.; Ingram, Adam; Liodakis, Ioannis; Mandarakas, Nikos; Nitindala, Anagha P.; Rhodes, Lauren; Trushkin, Sergei A.; Tsygankov, Sergey S.; Brigitte, Maimouna; Di Marco, Alessandro; Iacolina, Noemi; Krawczynski, Henric; La Monaca, Fabio; Loktev, Vladislav; Mastroserio, Guglielmo; Petrucci, Pierre-Olivier; Pilia, Maura; Tombesi, Francesco; Zdziarski, Andrzej A.
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )

A Two-week IXPE Monitoring Campaign on Mrk 421 (2025)

Astrophysical Journal
Maksym, W. Peter; Liodakis, Ioannis; Saade, M. Lynne; Kim, Dawoon E.; Middei, Riccardo; Gesu, Laura Di; Kiehlmann, Sebastian; Matzeu, Gabriele; Agudo, Iván; Marscher, Alan P.; Ehlert, Steven R.; Jorstad, Svetlana G.; Kaaret, Philip; Marshall, Herman L.; Pacciani, Luigi; Perri, Matteo; Puccetti, Simonetta; Kouch, Pouya M.; Lindfors, Elina; Aceituno, Francisco José; Bonnoli, Giacomo; Casanova, Víctor; Escudero, Juan; Gómez, José L.; Agís-González, Beatriz; Husillos, César; Morcuende, Daniel; Otero-Santos, Jorge; Sota, Alfredo; Piirola, Vilppu; Imazawa, Ryo; Sasada, Mahito; Fukazawa, Yasushi; Kawabata, Koji S.; Uemura, Makoto; Mizuno, Tsunefumi; Nakaoka, Tatsuya; Akitaya, Hiroshi; McCall, Callum; Jermak, Helen E.; Steele, Iain A.; Borman, George A.; Grishina, Tatiana S.; Hagen-Thorn, Vladimir A.; Kopatskaya, Evgenia N.; Larionova, Elena G.; Morozova, Daria A.; Savchenko, Sergey S.; Shishkina, Ekaterina V.; Troitskiy, Ivan S.; Troitskaya, Yulia V.; Vasilyev, Andrey A.; Zhovtan, Alexey V.; Myserlis, Ioannis; Gurwell, Mark; Keating, Garrett; Rao, Ramprasad; Pauley, Colt; Angelakis, Emmanouil; Kraus, Alexander; Berdyugin, Andrei V.; Kagitani, Masato; Kravtsov, Vadim; Poutanen, Juri; Sakanoi, Takeshi; Kang, Sincheol; Lee, Sang-Sung; Kim, Sang-Hyun; Cheong, Whee Yeon; Jeong, Hyeon-Woo; Song, Chanwoo; Blinov, Dmitry; Shablovinskaya, Elena; Antonelli, Lucio Angelo; Bachetti, Matteo; Baldini, Luca; Baumgartner, Wayne H.; Bellazzini, Ronaldo; Bianchi, Stefano; Bongiorno, Stephen D.; Bonino, Raffaella; Brez, Alessandro; Bucciantini, Niccoló; Capitanio, Fiamma; Castellano, Simone; Cavazzuti, Elisabetta; Chen, Chien-Ting; Ciprini, Stefano; Costa, Enrico; Rosa, Alessandra De; Monte, Ettore Del; Lalla, Niccoló Di; Marco, Alessandro Di; Donnarumma, Immacolata; Doroshenko, Victor; Dovčiak, Michal; Enoto, Teruaki; Evangelista, Yuri; Fabiani, Sergio; Ferrazzoli, Riccardo; Garcia, Javier A.; Gunji, Shuichi; Hayashida, Kiyoshi; Heyl, Jeremy; Iwakiri, Wataru; Karas, Vladimir; Kislat, Fabian; Kitaguchi, Takao; Kolodziejczak, Jeffery J.; Krawczynski, Henric; Monaca, Fabio La; Latronico, Luca; Maldera, Simone; Manfreda, Alberto; Marin, Frédéric; Marinucci, Andrea; Massaro, Francesco; Matt, Giorgio; Mitsuishi, Ikuyuki; Muleri, Fabio; Negro, Michela; Ng, C.-Y.; O’Dell, Stephen L.; Omodei, Nicola; Oppedisano, Chiara; Papitto, Alessandro; Pavlov, George G.; Peirson, Abel Lawrence; Pesce-Rollins, Melissa; Petrucci, Pierre-Olivier; Pilia, Maura; Possenti, Andrea; Ramsey, Brian D.; Rankin, John; Ratheesh, Ajay; Roberts, Oliver J.; Romani, Roger W.; Sgró, Carmelo; Slane, Patrick; Soffitta, Paolo; Spandre, Gloria; Swartz, Douglas A.; Tamagawa, Toru; Tavecchio, Fabrizio; Taverna, Roberto; Tawara, Yuzuru; Tennant, Allyn F.; Thomas, Nicholas E.; Tombesi, Francesco; Trois, Alessio; Tsygankov, Sergey S.; Turolla, Roberto; Vink, Jacco; Weisskopf, Martin C.; Wu, Kinwah; Xie, Fei; Zane, Silvia
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )