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astro-ph.HE2025
Identifying the secondary jet in the RadioAstron image of OJ~287
Mauri J. Valtonen, Lankeswar Dey, Staszek Zola +26
The 136 year long optical light curve of OJ~287 is explained by a binary black hole model where the secondary is in a 12 year orbit around the primary. Impacts of the secondary on…
astro-ph.HE2025★ 1 cited
On the evidence of a dark matter density spike around the primary black hole in OJ 287
Debabrata Deb, Achamveedu Gopakumar, Mauri J. Valtonen
The central engine of blazar OJ~287 is arguably the most notable supermassive black hole (SMBH) binary candidate that emits nano-Hertz (nHz) gravitational waves. This inference is…