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Modified Newtonian Gravity, Wide Binaries and the Tully-Fisher Relation

Acedo, Luis

A recent study of a sample of wide binary star systems from the Hipparcos and Gaia catalogues has found clear evidence of a gravitational anomaly of the same kind as that appearing in galaxies and galactic clusters. Instead of a relative orbital velocity decaying as the square root of the separation, ΔV∝r‑1/2, it was shown that an asymptotic const…