High Energy Astrophysical Phenomena · Physics
Evidence of jet activity from the secondary black hole in the OJ287 binary system
Mauri J. Valtonen, Staszek Zola, Alok C. Gupta, Shubham Kishore +28
2024-05-15
High Energy Astrophysical Phenomena · Physics
Observational Implications of OJ 287's Predicted 2022 Disk Impact in the Black Hole Binary Model
Mauri J. Valtonen, Lankeswar Dey, Achamveedu Gopakumar, Staszek Zola +23
2023-08-04
High Energy Astrophysical Phenomena · Physics
Refining the prediction for OJ 287 next impact flare arrival epoch
Mauri J. Valtonen, Staszek Zola, A. Gopakumar, Callum McCall +22
2022-09-20
High Energy Astrophysical Phenomena · Physics
Refining the 2022 OJ 287 impact flare arrival epoch
Mauri J. Valtonen, Staszek Zola, Gopakumar, Anne Lähteenmäki +23
2023-04-07
High Energy Astrophysical Phenomena · Physics
Precursor flares in OJ 287
P. Pihajoki, M. Valtonen, S. Zola, A. Liakos +18
2015-06-12
High Energy Astrophysical Phenomena · Physics
High accuracy measurement of gravitational wave back-reaction in the OJ287 black hole binary
Mauri J. Valtonen, L. Dey, R. Hudec, S. Zola +15
2018-10-02
High Energy Astrophysical Phenomena · Physics
Primary black hole spin in OJ287 as determined by the General Relativity centenary flare
M. J. Valtonen, S. Zola, S. Ciprini, A. Gopakumar +86
2016-03-23
High Energy Astrophysical Phenomena · Physics
Authenticating the Presence of a Relativistic Massive Black Hole Binary in OJ 287 Using its General Relativity Centenary Flare: Improved Orbital Parameters
Lankeswar Dey, M. J. Valtonen, A. Gopakumar, S. Zola +4
2019-08-14
High Energy Astrophysical Phenomena · Physics
Spitzer Observations of the Predicted Eddington Flare from Blazar OJ 287
Seppo Laine, Lankeswar Dey, Mauri Valtonen, A. Gopakumar +24
2020-05-06
High Energy Astrophysical Phenomena · Physics
Multi-wavelength temporal and spectral variability of the blazar OJ 287 during and after the December 2015 flare: a major accretion disc contribution
P. Kushwaha, A. C. Gupta, P. J. Wiita, H. Gaur +32
2017-11-03
High Energy Astrophysical Phenomena · Physics
Multiwavelength astrophysics of the blazar OJ 287 and the project MOMO
S. Komossa, A. Kraus, D. Grupe, M. L. Parker +18
2023-05-24
High Energy Astrophysical Phenomena · Physics
Promise of persistent multi-messenger astronomy with the blazar OJ 287
Mauri J. Valtonen, Lankeswar Dey, A. Gopakumar, Staszek Zola +6
2021-12-23
High Energy Astrophysical Phenomena · Physics
A comprehensive study of 2019-2020 flare of OJ 287 using AstroSat, Swift, and NuSTAR
Raj Prince, Gayathri Raman, Rukaiya Khatoon, Aditi Agarwal +4
2021-09-22
High Energy Astrophysical Phenomena · Physics
Multiband optical variability of the blazar OJ 287 during its outbursts in 2015 -- 2016
Alok C. Gupta, A. Agarwal, A. Mishra, H. Gaur +30
2017-01-04
High Energy Astrophysical Phenomena · Physics
Black Hole Collisions With Thin Accretion Disks: OJ 287 and Small-Mass-Ratio Supermassive Black Hole Binary Candidates
Sean M. Ressler, Luciano Combi, Bart Ripperda, Xinyu Li
2025-09-24
High Energy Astrophysical Phenomena · Physics
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
Alok C. Gupta, Pankaj Kushwaha, Mauri J. Valtonen, Sergey S. Savchenko +24
2023-11-07
High Energy Astrophysical Phenomena · Physics
Absence of the predicted 2022 October outburst of OJ 287 and implications for binary SMBH scenarios
S. Komossa, D. Grupe, A. Kraus, M. A. Gurwell +8
2023-03-01
High Energy Astrophysical Phenomena · Physics
MOMO VI: Multifrequency radio variability of the blazar OJ 287 from 2015-2022, absence of predicted 2021 precursor-flare activity, and a new binary interpretation of the 2016/2017 outburst
S. Komossa, A. Kraus, D. Grupe, A. G. Gonzalez +11
2023-03-01