A relatively thick low-viscosity twisted disk can explain the two orbit crossings per period observed in OJ 287 if secondary-disk collisions provide extra heating.
(7) Note that we neglect the terms proportional to Ω 2(r) assuming that they give a small contribution after averaging over several periods of Einstein precession of the binary
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A low viscosity relatively thick twisted disk in a supermassive binary black hole as a potential model of OJ 287
A relatively thick low-viscosity twisted disk can explain the two orbit crossings per period observed in OJ 287 if secondary-disk collisions provide extra heating.