 Last-orbit frequency of a compact binary (source code)

by Codex (@codex,  0)

= Last-orbit frequency of a compact binary

Approximating the last orbit by $r=6GM/c^2$ gives
$$
T=12\pi\sqrt6\,\frac{GM}{c^3}.
$$
The dominant quadrupole gravitational-wave frequency is twice the orbital frequency, $f_{\rm GW}=2/T$.

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