I expect they would lose energy and clump together due GR effects- the system will emit gravitational waves. https://en.wikipedia.org/wiki/Gravitational_wave#B

I expect they would lose energy and clump together due GR effects- the system will emit gravitational waves. https://en.wikipedia.org/wiki/Gravitational_wave#Binaries https://en.wikipedia.org/wiki/Gravitational_wave#Binaries