Observational Implications of OJ 287's Predicted 2022 Disk Impact in the Black Hole Binary Model

Abstract

We present a summary of the results of the OJ 287 observational campaign, which was carried out during the 2021/2022 observational season. This season is special in the binary model because the major axis of the precessing binary happens to lie almost exactly in the plane of the accretion disc of the primary. This leads to pairs of almost identical impacts between the secondary black hole and the accretion disk in 2005 and 2022. In 2005, a special flare called "blue flash" was observed 35 days after the disk impact, which should have also been verifiable in 2022. We did observe a similar flash and were able to obtain more details of its properties. We describe this in the framework of expanding cloud models. In addition, we were able to identify the flare arising exactly at the time of the disc crossing from its photo-polarimetric and gamma-ray properties. This is an important identification, as it directly confirms the orbit model. Moreover, we saw a huge flare that lasted only one day. We may understand this as the lighting up of the jet of the secondary black hole when its Roche lobe is suddenly flooded by the gas from the primary disk. Therefore, this may be the first time we directly observed the secondary black hole in the OJ 287 binary system.

arXiv comment24 pages, 13 figures, published in Galaxies as part of the Special Issue Distant Glowing Objects: Quest for Quasars

References in corpus (32)

• Dark matter annihilation at the galactic center
• Doppler factors, Lorentz factors and viewing angles for quasars, BL Lacertae objects and radio galaxies
• Bright AGN Source List from the First Three Months of the Fermi Large Area Telescope All-Sky Survey
• A massive binary black-hole system in OJ287 and a test of general relativity
• Location of gamma-ray Flare Emission in the Jet of the BL Lacertae Object OJ287 more than 14pc from the Central Engine
• The relation between broad lines and gamma--ray luminosities in Fermi blazars
• Global Radiation Magneto-hydrodynamic Simulations of Sub-Eddington Accretion Disks around Supermassive Black Holes
• Primary black hole spin in OJ287 as determined by the General Relativity centenary flare
• Authenticating the Presence of a Relativistic Massive Black Hole Binary in OJ 287 Using its General Relativity Centenary Flare: Improved Orbital Parameters
• Very Rapid High-Amplitude Gamma-ray Variability in Luminous Blazar PKS 1510-089 Studied with Fermi-LAT
• Variability and stability in blazar jets on time scales of years: Optical polarization monitoring of OJ287 in 2005-2009
• Gamma rays from cloud penetration at the base of AGN jets
• Erratic Jet Wobbling in the BL Lacertae Object OJ287 Revealed by Sixteen Years of 7mm VLBA Observations
• On the masses of OJ287 black holes
• Spitzer Observations of the Predicted Eddington Flare from Blazar OJ 287
• Measuring the spin of the primary black hole in OJ287
• Location of Gamma-ray emission and magnetic field strengths in OJ 287
• Testing black hole no-hair theorem with OJ287
• Short time-scale periodicity in OJ 287
• The Megaparsec-Scale X-ray Jet of the BL Lac Object OJ287
• Time-Dependent Modeling of Gamma-ray Flares in Blazar PKS1510-089
• Precursor flares in OJ 287
• A helical jet model for OJ287
• Explaining temporal variations in the jet position angle of the blazar OJ 287 using its binary black hole central engine model
• Optical polarization angle and VLBI jet direction in the binary black hole model of OJ287
• Absence of the predicted 2022 October outburst of OJ 287 and implications for binary SMBH scenarios
• Accretion Disk Parameters determined from the great 2015 flare of OJ 287
• Orphan γ-ray flares from relativistic blobs encountering luminous stars
• Refining the 2022 OJ 287 impact flare arrival epoch
• Polarimetric Properties of Blazars Caught by the WEBT
• MOMO V. Effelsberg, Swift and Fermi study of the blazar and supermassive binary black hole candidate OJ 287 in a period of high activity
• Absorption effects in the blazar's gamma-ray spectra due to luminous stars crossing the jet

Cited by in corpus (2)

• 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
• Clues on the nature of the quasi-periodic optical outbursts of the blazar OJ 287