Strong constraints on the gravitational law from Gaia DR3 wide binaries

Name: Strong constraints on the gravitational law from Gaia DR3 wide binaries
Uploaded: 2026-10-03T21:47:08.015198+00:00
Duration: 589 s
Description: The research tested whether Modified Newtonian Dynamics (MOND) could explain wide binary star orbital velocities using Gaia DR3 data. The analysis compared Newtonian and MOND models, finding a strong statistical preference for standard Newtonian gravity ($\alpha_{\text{grav}} = 0$). This suggests that MOND is strongly excluded as an explanation for these galactic dynamics.

The research tested whether Modified Newtonian Dynamics (MOND) could explain wide binary star orbital velocities using Gaia DR3 data. The analysis compared Newtonian and MOND models, finding a strong statistical preference for standard Newtonian gravity ($\alpha_{\text{grav}} = 0$). This suggests that MOND is strongly excluded as an explanation for these galactic dynamics.

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