Candidate Electromagnetic Counterpart to the Binary Black Hole Merger Gravitational-Wave Event S190521g

We report the first plausible optical electromagnetic counterpart to a (candidate) binary black hole merger. Detected by the Zwicky Transient Facility, the electromagnetic flare is consistent with expectations for a kicked binary black hole merger in the accretion disk of an active galactic nucleus...

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Veröffentlicht in:	Physical review letters 2020-06, Vol.124 (25), p.1-251102, Article 251102
Hauptverfasser:	Graham, M. J., Ford, K. E. S., McKernan, B., Ross, N. P., Stern, D., Burdge, K., Coughlin, M., Djorgovsk, S. G., Drake, A. J., Duev, D., Kasliwal, M., Mahabal, A. A., Velzen, S. van, Belecki, J., Bellm, E. C., Burruss, R., Cenko, S. B., Cunningham, V., Helou, G., Kulkarni, S. R., Masci, F. J., Prince, T., Reiley, D., Rodriguez, H., Rusholme, B., Smith, R. M., Soumagnac, M. T.
Format:	Artikel
Sprache:	eng
Schlagworte:	Accretion disks Active galactic nuclei Aspect ratio Astrophysics Constraints Gas density Gravitational waves Microlenses Stellar evolution Supermassive black holes
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Zusammenfassung:	We report the first plausible optical electromagnetic counterpart to a (candidate) binary black hole merger. Detected by the Zwicky Transient Facility, the electromagnetic flare is consistent with expectations for a kicked binary black hole merger in the accretion disk of an active galactic nucleus [B. McKernan, K. E. S. Ford, I. Bartoset al., Astrophys. J. Lett.884, L50 (2019)] and is unlikely [
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.124.251102