Mauri Valtonen - UTU Research Portal

Mauri Valtonen

Finnish Centre for Astronomy with ESO (Independent units)

mavalto@utu.fi

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On the need of an ultramassive black hole in OJ 287 (2023)
- Monthly Notices of the Royal Astronomical Society
Valtonen MJ, Zola S, Gopakumar A, Lahteenmaki A, Tornikoski M, Dey L, Gupta AC, Pursimo T, Knudstrup E, Gomez JL, Hudec R, Jelinek M, Strobl J, Berdyugin AV, Ciprini S, Reichart DE, Kouprianov VV, Matsumoto K, Drozdz M, Mugrauer M, Sadun A, Zejmo M, Sillanpaa A, Lehto HJ, Nilsson K, Imazawa R, Uemura M, Davidson JW
Quasi-simultaneous Optical Flux and Polarization Variability of the Binary Super Massive Black Hole Blazar OJ 287 from 2015 to 2023: Detection of an Anticorrelation in Flux and Polarization Variability (2023)
- Astrophysical Journal Letters
Gupta Alok C., Kushwaha Pankaj, Valtonen Mauri J., Savchenko Sergey S., Jorstad Svetlana G., Imazawa Ryo, Wiita Paul J., Gu Minfeng, Marscher Alan P., Zhang Zhongli, Bachev Rumen, Borman G. A., Gaur Haritma, Grishina T. S., Hagen-Thorn V. A., Kopatskaya E. N., Larionov V. M., Larionova E. G., Larionova L. V., Morozova D. A., Nakaoka T., Strigachev A., Troitskaya Yulia V., Troitsky I. S., Uemura M., Vasilyev A. A., Weaver Z. R., Zhovtan A. V.
Refining the OJ 287 2022 impact flare arrival epoch (2023)
- Monthly Notices of the Royal Astronomical Society
Valtonen Mauri J, Zola Staszek, Gopakumar A, Lähteenmäki Anne, Tornikoski Merja, Dey Lankeswar, Gupta Alok C, Pursimo Tapio, Knudstrup Emil, Gomez Jose L, Hudec Rene, Jelínek Martin, Štrobl Jan, Berdyugin Andrei V, Ciprini Stefano, Reichart Daniel E, Kouprianov Vladimir V, Matsumoto Katsura, Drozdz Marek, Mugrauer Markus, Sadun Alberto, Zejmo Michal, Sillanpää Aimo, Lehto Harry J, Nilsson Kari, Imazawa Ryo, Uemura Makoto
Stability of hierarchical triples - II. The inclination iota=140 degrees resonance in the stability surface (2023)
- Monthly Notices of the Royal Astronomical Society
Pasechnik Alexey, Mylläri Aleksandr, Valtonen Mauri, Mikkola Seppo
Host galaxy magnitude of OJ 287 from its colours at minimum light (2022)
- Monthly Notices of the Royal Astronomical Society
Valtonen Mauri J, Dey Lankeswar, Zola S, Ciprini S, Kidger M, Pursimo T, Gopakumar A, Matsumoto K, Sadakane K, Caton DB, Nilsson K, Komossa S, Bagaglia M, Baransky A, Boumis P, Boyd D, Castro-Tirado AJ, Debski B, Drozdz M, Perez AE, Fiorucci M, Garcia F, Gazeas K, Ghosh S, Godunova V, Gomez JL, Gredel R, Grupe D, Haislip JB, Henning T, Hurst G, Janik J, Kouprianov VV, Lehto H, Liakos A, Mathur S, Mugrauer M, Nogues RN, Nucciarelli G, Ogloza W, Ojha DK, Pajdosz-Smierciak U, Pascolini S, Poyner G, Reichart DE, Rizzi N, Roncella F, Sahu DK, Sillanpaa A, Simon A, Siwak M, Alfaro FCS, Sonbas E, Tosti G, Vasylenko V, Webb JR, Zielinski P
MOMO - V. Effelsberg, Swift, and Fermi study of the blazar and supermassive binary black hole candidate OJ 287 in a period of high activity (2022)
- Monthly Notices of the Royal Astronomical Society
Komossa S, Grupe D, Kraus A, Gonzalez A, Gallo LC, Valtonen MJ, Laine S, Krichbaum TP, Gurwell MA, Gomez JL, Ciprini S, Myserlis I, Bach U
Probing the Innermost Regions of AGN Jets and Their Magnetic Fields with RadioAstron. V. Space and Ground Millimeter-VLBI Imaging of OJ 287 (2022)
- Astrophysical Journal
Gómez José L, Traianou Efthalia, Krichbaum Thomas P, Lobanov Andrei P, Fuentes Antonio, Lico Rocco, Zhao Guang-Yao, Bruni Gabriele, Kovalev Yuri Y, Lähteenmäki Anne, Voitsik Petr A, Lisakov Mikhail M, Angelakis Emmanouil, Bach Uwe, Casadio Carolina, Cho Ilje, Dey Lankeswar, Gopakumar Achamveedu, Gurvits Leonid I, Jorstad Svetlana, Kovalev Yuri A, Lister Matthew L, Marscher Alan P, Myserlis Ioannis, Pushkarev Alexander B, Ros Eduardo, Savolainen Tuomas, Tornikoski Merja, Valtonen Mauri J, Zensus Anton
Promise of Persistent Multi-Messenger Astronomy with the Blazar OJ 287 (2022)
- Galaxies
Valtonen Mauri J., Dey Lankeswar, Gopakumar Achamveedu, Zola Staszek, Komossa S., Pursimo Tapio, Gomez Jose L., Hudec Rene, Jermak Helen, Berdyugin Andrei V.
Three-body Stability Limit at Infinite Time (2022)
- Bulletin of the American Astronomical Society
Valtonen Mauri, Mylläri Aleksandr
Explaining temporal variations in the jet PA of the blazar OJ 287 using its BBH central engine model (2021)
- Monthly Notices of the Royal Astronomical Society
Dey Lankeswar, Valtonen Mauri J., Gopakumar A., Lico Rocco, Gómez José L., Susobhanan Abhimanyu, Komossa S., Pihajoki Pauli