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Kinematics of the Milky Way Thick disk in solar neighborhood
Vieira, K.; Korchagin, V.; Lutsenko, A.
Using GAIA EDR3 catalog, we present the detailed analysis of the two-component Milky Way stellar disk in the solar neighborhood. To determine the kinematical properties of the thin and of the Thick disks, we select the complete sample of about 278,000 evolved red giant branch (RGB) stars distributed in the cylinder of 1 kpc radius and 0.5 kpc heig…
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…