By Jason Sanders
This paintings offers a examine of equipment worthy for modeling and realizing dynamical platforms within the Galaxy. A common coordinate approach for the examine of dynamical structures is the angle-action coordinate method. New methods for the approximation of the action-angle variables in general potentials are awarded and mentioned. those new instruments are utilized to the development of dynamical types for 2 of the Galaxy’s parts: tidal streams and the Galactic disc. Tidal streams are remnants of tidally stripped satellites within the Milky Way that experience the effects of the huge scale structure of the Galactic gravitational power, whereas the Galactic disc presents insights into the character of the Galaxy close to the solar. applicable action-based types are provided and mentioned for those elements, and prolonged to incorporate additional info resembling the metallicity of stars.
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