Jari Kajava - UTU Research Portal

Jari Kajava

Tuorla Observatory (Department of Physics and Astronomy)

jari.kajava@utu.fi

Vesilinnantie 5

Turku

4 of 4

Rapid spectral transition of the black hole binary V404 Cygni (2020)
- Astronomy and Astrophysics
J. J. E. Kajava, C. Sánchez-Fernández, J. Alfonso-Garzón, S. E. Motta, A. Veledina
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
Hard-state Accretion Disk Winds from Black Holes: The Revealing Case of MAXI J1820+070The December 2015 re-brightening of V404 Cygni Variable absorption from the accretion disc outflow (2019)
- Astrophysical Journal LettersAstronomy and Astrophysics
Munoz-Darias T, Jimenez-Ibarra F, Panizo-Espinar G, Casares J, Sanchez DM, Ponti G, Fender RP, Buckley DAH, Garnavich P, Torres MAP, Padilla MA, Charles PA, Corral-Santana JM, Kajava JJE, Kotze EJ, Littlefield C, Sanchez-Sierras J, Steeghs D, Thomas J, Thomas J
HR 10: a main-sequence binary with circumstellar envelopes around both componentsVariable polarisation and Doppler tomography of PSR J1023+0038-Evidence for the magnetic propeller during flaring? (2019)
- Astronomy and Astrophysics
B. Montesinos, C. Eiroa, J. Lillo-Box, I. Rebollido, A. A. Djupvik, O. Absil, S. Ertel, L. Marion,
J. J. E. Kajava, S. Redfield, H. Isaacson, H. Cánovas, G. Meeus, I. Mendigutía, A. Mora,
P. Rivière-Marichalar, E. Villaver, J. Maldonado,T. Henning
X-ray dips and a complex UV/X-ray cross-correlation function in the black hole candidate MAXI J1820+070 (2019)
- Monthly Notices of the Royal Astronomical Society: Letters
Kajava J.J.E., Motta S.E., Sanna A., Veledina A., Del Santo M., Segreto A.
First measurements of linear polarization of MAXI J1820+0702018Astronomer's Telegram A. Berdyugin, A. Veledina, I. Kosenkov, J. Poutanen, S. Tsygankov, J.J.E. Kajava, M. Kagitani, T. Sakanoi
(2018)
Kajava JJE, Motta SE, Sanchez-Fernandez C, Kuulkers E
(2018)
- Monthly Notices of the Royal Astronomical Society
Hakala P, Kajava JJE
Basic parameters of the helium-accreting X-ray bursting neutron star in 4U 1820-30 (2017)
- Monthly Notices of the Royal Astronomical Society
Suleimanov VF, Kajava JJE, Molkov SV, Nattila J, Lutovinov AA, Werner K, Poutanen J
Expanding hot flow in the black hole binary SWIFT J1753.5-0127: evidence from optical timing (2017)
- Monthly Notices of the Royal Astronomical Society
Veledina A, Gandhi P, Hynes R, Kajava JJE, Tsygankov SS, Revnivtsev MG, Durant M, Poutanen J
Flux decay during thermonuclear X-ray bursts analysed with the dynamic power-law index method (2017)
- Astronomy and Astrophysics
Kuuttila J, Kajava JJE, Nattila J, Motta SE, Sanchez-Fernandez C, Kuulkers E, Cumming A, Poutanen J
Hard X-ray variability of V404 Cygni during the 2015 outburst (2017)
- Astronomy and Astrophysics
Sanchez-Fernandez C, Kajava JJE, Motta SE, Kuulkers E
Long-term optical and X-ray variability of the Be/X-ray binary H 1145-619: Discovery of an ongoing retrograde density wave (2017)
- Astronomy and Astrophysics
Alfonso-Garzon J, Fabregat J, Reig P, Kajava JJE, Sanchez-Fernandez C, Townsend LJ, Mas-Hesse JM, Crawford SM, Kretschmar P, Coe MJ
Neutron star mass and radius measurements from atmospheric model fits to X-ray burst cooling tail spectra2017
- Astronomy and Astrophysics
J. Nättilä, M. C. Miller, A. W. Steiner, J. J. E. Kajava, V. F. Suleimanov, J. Poutanen
Studying the accretion geometry of EXO 2030+375 at luminosities close to the propeller regimeThe direct cooling tail method for X-ray burst analysis to constrain neutron star masses and radii. (2017)
- Astronomy and Astrophysics
Furst F, Kretschmar P, Kajava JJE, Alfonso-Garzan J, Kuhnel M, Sanchez-Fernandez C, Blay P, Wilson-Hodge CA, Jenke P, Kreykenbohm I, Pottschmidt K, Wilms J, Rothschild RE
Swift observations of V404 Cyg during the 2015 outburst: X-ray outflows from super-Eddington accretionVariable spreading layer in 4U 1608-52 during thermonuclear X-ray bursts in the soft state (2017)
- Monthly Notices of the Royal Astronomical Society
Motta SE, Kajava JJE, Sanchez-Fernandez C, Beardmore AP, Sanna A, Page KL, Fender R, Altamirano D, Charles P, Giustini M, Knigge C, Kuulkers E, Oates S, Osborne JP
The black hole binary V404 Cygni: a highly accreting obscured AGN analogue (2017)
- Monthly Notices of the Royal Astronomical SocietyAstronomy and Astrophysics
S. E. Motta, J. J. E. Kajava, C. Sánchez-Fernández, M. Giustini, E. Kuulkers
(2017)
- Monthly Notices of the Royal Astronomical Society
Valery F. Suleimanov, Juri Poutanen, Joonas Nättilä, Jari J.E. Kajava, Mikhail G. Revnivtsev, Klaus Werner
(2017)
- Monthly Notices of the Royal Astronomical Society
Kajava JJE, Koljonen KII, Nattila J, Suleimanov V, Poutanen J
X-ray burst-induced spectral variability in 4U 1728-34 (2017)
Kajava JJE, Sanchez-Fernandez C, Kuulkers E, Poutanen J