| Galactic Tides |
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| • | Tidal
forces experienced by an object of |
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| diameter
d in gravitational interaction with |
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| galaxy
mass M a distance D away: |
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| – | Ftide ~ GMd/D3 (differentiating Newton) |
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| – | (Why
not exactly equal?) |
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| – | Therefore
tidal forces very sensitive to D |
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