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1 vote
2 answers
699 views

Why in binary star system the 2 bodies revolve around their center of mass?

Can you prove it mathematically? Is it just an observation? I know the force between them is $\frac{Gm_1m_2}{r^2}$. Centripetal force on any one of them is $\frac{mv^2}{r_1}$, where $r_1$ is radius of ...
Tilak Shukla's user avatar
3 votes
0 answers
139 views

Minimal value of angular momentum in a close binary

I just noticed something interesting with the angular momentum of a close stellar binary. This question is somewhat related to another question of mine, but the question here is clearly different : ...
Cham's user avatar
  • 7,592
6 votes
1 answer
2k views

Conservation of spin angular momentum in a close binary system

Consider a simple model of a close stellar binary, of mass $m_1$ and $m_2 < m_1$, moving on circular orbits around the system's barycenter (no eccentricity, to simplify things). Both star's ...
Cham's user avatar
  • 7,592