Authenticating the Presence of a Relativistic Massive Black Hole Binary in OJ 287 Using Its General Relativity Centenary Flare: Improved Orbital Parameters

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dc.authoridReynolds, Thomas/0000-0002-1022-6463
dc.authoridZejmo, Michal/0000-0001-5836-9503
dc.authoridZielinski, Pawel/0000-0001-6434-9429
dc.authoridCiprini, Stefano/0000-0002-0712-2479
dc.authorid, Sameer/0000-0001-9966-6790
dc.authoridDEY, LANKESWAR/0000-0002-2554-0674
dc.authorid/0000-0003-0180-8231
dc.contributor.authorDey, Lankeswar
dc.contributor.authorValtonen, M. J.
dc.contributor.authorGopakumar, A.
dc.contributor.authorZola, S.
dc.contributor.authorHudec, R.
dc.contributor.authorPihajoki, P.
dc.contributor.authorCiprini, S.
dc.date.accessioned2025-01-27T20:34:39Z
dc.date.available2025-01-27T20:34:39Z
dc.date.issued2018
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractResults from regular monitoring of relativistic compact binaries like PSR 1913+16 are consistent with the dominant (quadrupole) order emission of gravitational waves (GWs). We show that observations associated with the binary black hole (BBH) central engine of blazar OJ 287 demand the inclusion of gravitational radiation reaction effects beyond the quadrupolar order. It turns out that even the effects of certain hereditary contributions to GW emission are required to predict impact flare timings of OJ 287. We develop an approach that incorporates this effect into the BBH model for OJ 287. This allows us to demonstrate an excellent agreement between the observed impact flare timings and those predicted from ten orbital cycles of the BBH central engine model. The deduced rate of orbital period decay is nine orders of magnitude higher than the observed rate in PSR 1913+16, demonstrating again the relativistic nature of OJ 287's central engine. Finally, we argue that precise timing of the predicted 2019 impact flare should allow a test of the celebrated black hole no-hair theorem at the 10% level.
dc.description.sponsorshipNCN [2012/04/A/ST9/00083, 2018/09/B/ST9/02004]; GACR [13-33324S]; Academy of Finland [274931]; Christopher R. Redlich Fund; TABASGO Foundation; Miller Institute for Basic Research in Science (UC Berkeley); National Science Foundation (NSF) [PHY-1607611]; STFC [PP/E001149/1, ST/L00061X/1, ST/R000484/1, ST/F007159/1, ST/H002391/1, ST/J001465/1] Funding Source: UKRI
dc.description.sponsorshipL.D. acknowledges the hospitality of Tuorla Observatory, University of Turku, where part of this work was carried out. S.Z. acknowledges support from NCN grants 2012/04/A/ST9/00083 and 2018/09/B/ST9/02004. R.H. acknowledges GACR grant 13-33324S. P.P. acknowledges support from the Academy of Finland, grant 274931. A.V.F. has been supported by the Christopher R. Redlich Fund, the TABASGO Foundation, and the Miller Institute for Basic Research in Science (UC Berkeley). His work was conducted in part at the Aspen Center for Physics, which is supported by National Science Foundation (NSF) grant PHY-1607611; he thanks the Center for its hospitality during the supermassive black holes workshop in 2018 June and July.
dc.identifier.doi10.3847/1538-4357/aadd95
dc.identifier.issn0004-637X
dc.identifier.issn1538-4357
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85055252909
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.3847/1538-4357/aadd95
dc.identifier.urihttps://hdl.handle.net/20.500.12428/23404
dc.identifier.volume866
dc.identifier.wosWOS:000446752400011
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherIop Publishing Ltd
dc.relation.ispartofAstrophysical Journal
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectblack hole physics
dc.subjectgravitation
dc.subjectquasars: general
dc.subjectquasars: individual (OJ 287)
dc.titleAuthenticating the Presence of a Relativistic Massive Black Hole Binary in OJ 287 Using Its General Relativity Centenary Flare: Improved Orbital Parameters
dc.typeArticle

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