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velocity-metallicity relation

(higher stellar velocity correlates with lower metallicity)

The velocity-metallicity relation is the correlation between low metallicity and high velocity dispersion within the local Milky Way. Low metallicity is associated with older stars, formed before supernovae and short-lived stars increased the metallicity of the molecular clouds, and stellar age has also been determined to be related (age-velocity-metallicity relation).

The velocity-metallicity relation can be demonstrated by peculiar velocity diagrams of a chosen group of stars of some given metallicities and spectral classes, that plot the peculiar velocity components based on the neighborhood of the given stars: one component radial to the galaxy and the other component within the galactic plane,


(kinematics,Milky Way,stars,relation)
https://web.njit.edu/~gary/321/Lecture18.html

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