Sergey Tsygankov

- University Research Fellow,
Tuorla Observatory (Department of Physics and Astronomy)

sergey.tsygankov@utu.fi

+358 29 450 4519

+358 50 412 7281

Vesilinnantie 5

Turku

9 of 13

Discovery of a Pulse-phase-transient Cyclotron Line in the X-Ray pulsar GRO J2058+42 (2019)
- Astrophysical Journal Letters
Molkov S, Lutovinov A, Tsygankov S, Mereminskiy I, Mushtukov A
Dramatic spectral transition of X-ray pulsar GX 304-1 in low luminous state (2019)
- Monthly Notices of the Royal Astronomical Society: Letters
Tsygankov S., Rouco Escorial A., Suleimanov V., Mushtukov A., Doroshenko V., Lutovinov A., Wijnands R., Poutanen J.
Evidence for the radiation-pressure dominated accretion disk in bursting pulsar GRO J1744-28 using timing analysis (2019)
- Astronomy and Astrophysics
Monkkonen J, Tsygankov SS, Mushtukov AA, Doroshenko V, Suleimanov VF, Poutanen J
Evolving optical polarisation of the black hole X-ray binary MAXI J1820+070 (2019)
- Astronomy and Astrophysics
Alexandra Veledina, Andrei V. Berdyugin, Ilia A. Kosenkov, Jari J.E. Kajava, Sergey S. Tsygankov, Vilppu Piirola, Svetlana V. Berdyugina, Takeshi Sakanoi, Masato Kagitani, Vadim Kravtsov, Juri Poutanen
GROJ1750-27: A neutron star far behind the Galactic Center switching into the propeller regime (2019)
- Monthly Notices of the Royal Astronomical Society
Lutovinov AA, Tsygankov SS, Karasev DI, Molkov SV, Doroshenko V
Localization and spectral properties of 4U 1901+03 with Swift/XRT and NuSTAR (2019) Astronomer’s telegram Mereminskiy IA, Lutovinov AA, Tsygankov SS, Semena AN, Shtykovskiy AE
New changing look case in NGC 1566 (2019)
- Monthly Notices of the Royal Astronomical Society
Oknyansky VL, Winkler H, Tsygankov SS, Lipunov VM, Gorbovskoy ES, van Wyk F, Buckley DAH, Tyurina NV
NuSTAR follow-up observations of Swift J1845.7-0037: confirmation of 200s pulsations and non-detection of a cyclotron line (2019) Astronomer’s telegram Doroshenko V, Tsygankov S
NuSTAR observations of wind-fed X-ray pulsar GX 301–2 during unusual spin-up event (2019)
- Astronomy and Astrophysics
Armin Nabizadeh, Juhani Mönkkönen, Sergey S. Tsygankov, Victor Doroshenko, Sergey V. Molkov, Juri Poutanen
Observational constraints on the magnetic field of the bright transient Be/X-ray pulsar SXP 4.78 (2019)
- Monthly Notices of the Royal Astronomical Society
Andrey N Semena, Alexander A Lutovinov, Ilya A Mereminskiy, Sergey S Tsygankov, Andrey E Shtykovsky, Sergey V Molkov, Juri Poutanen
Properties of the transient X-ray pulsar Swift J1816.7–1613 and its optical companion (2019)
- Astronomy and Astrophysics
Armin Nabizadeh, Sergey S. Tsygankov, Dmitrij I. Karasev, Juhani Mönkkönen, Alexander A. Lutovinov, Dmitrij I. Nagirner, Juri Poutanen
Soft excess in the quiescent Be/X-ray pulsar RX J0812.4-3114 (2019)
- Monthly Notices of the Royal Astronomical Society
Zhao Y, Heinke CO, Tsygankov SS, Ho WCG, Potekhin AY, Shaw AW
Study of the X-ray pulsar IGR J19294+1816 with NuSTAR: Detection of cyclotron line and transition to accretion from the cold disk (2019)
- Astronomy and Astrophysics
Sergey S. Tsygankov, Victor Doroshenko, Alexander A. Mushtukov, Alexander A. Lutovinov, Juri Poutanen
A dust-enshrouded tidal disruption event with a resolved radio jet in a galaxy merger (2018)
- Science
S. Mattila, M. Pérez-Torres, A. Efstathiou, P. Mimica, M. Fraser, E. Kankare, A. Alberdi, M. Á. Aloy, T. Heikkilä, P. G. Jonker, P. Lundqvist, I. Martí-Vidal, W. P. S. Meikle, C. Romero-Cañizales, S. J. Smartt, S. Tsygankov, E. Varenius, A. Alonso-Herrero, M. Bondi, C. Fransson, R. Herrero-Illana, T. Kangas, R. Kotak, N. Ramírez-Olivencia, P. Väisänen, R. J. Beswick, D. L. Clements, R. Greimel, J. Harmanen, J. Kotilainen, K. Nandra, T. Reynolds, S. Ryder, N. A. Walton, K. Wiik, G. Östlin
An Upper Limit on Nickel Overabundance in the Supercritical Accretion Disk Wind of SS 433 from X-ray Spectroscopy (2018)
- Astronomy Letters / Pis'ma v Astronomicheskii Zhurnal
Medvedev PS, Khabibullin II, Sazonov SY, Churazov EM, Tsygankov SS
Deep INTEGRAL, NuSTAR and Swift ToO observations of accretion-powered millisecond pulsar IGR J17591-2342: a peculiar outburst profile showing a re-brightening onset on Aug. 18, 2018 (2018) Astronomer's Telegram Lucien Kuiper, Sergey Tsygankov, Maurizio Falanga, Duncan Galloway, Juri Poutanen, Ilya Mereminskiy
Discovery of X-Rays from the Old and Faint Pulsar J1154-6250 (2018)
- Astrophysical Journal
Igoshev AP, Tsygankov SS, Rigoselli M, Mereghetti S, Popov SB, Elfritz JG, Mushtukov AA
Evolution of broad-band SED during outburst rise in NS X-ray Nova Aql X-1 (2018)
- Monthly Notices of the Royal Astronomical Society
Meshcheryakov AV, Tsygankov SS, Khamitov IM, Shakura NI, Bikmaev IF, Eselevich MV, Vlasyuk VV, Pavlinsky MN
First measurements of linear polarization of MAXI J1820+070 (2018) Astronomer's Telegram A. Berdyugin, A. Veledina, I. Kosenkov, J. Poutanen, S. Tsygankov, J.J.E. Kajava, M. Kagitani, T. Sakanoi
New changing look case in NGC 1566 #11915 (2018) Astronomer's Telegram Oknyansky VL, Lipunov VM, Gorbovskoy ES, Winkler H, van Wyk F, Tsygankov S, Buckley DAH