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"It is not the strongest of the species that survive, but the one most responsive to change." ..."Darwin(1809-1882, English naturalist Evolution)"
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Author Topic: Circular double stars  (Read 10166 times)
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Fu-Kwun Hwang
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on: April 23, 2011, 11:13:10 am » posted from:Taipei,T'ai-pei,Taiwan

This is a simulation for a double stars system in circular motion.

Assume the mass for stars are M,m.
The density is assume to be the same for both stars, so the radius for M will change when M is changed.
The distance between star is d,

The radius for the circular motion are r and d-r,
where M\, r=(d-r)\,m , and \frac{GMm}{d^2}=M\,r w^2=m(d-r) w^2

The black dot is the center of mass (CM) for the binary stars ststem.

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