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Challenging a Newtonian prediction through Gaia wide binaries

Scarpa, R.; Hernandez, X.; Allen, Christine +1 more

Under Newtonian dynamics, the relative motion of the components of a binary star should follow a Keplerian scaling with separation. Once orientation effects and a distribution of ellipticities are accounted for, dynamical evolution can be modeled to include the effects of Galactic tides and stellar mass perturbers, over the lifetime of the solar n…