Stellar streams in the Gaia era by Ana Bonaca instant download

Stellar streams in the Gaia era by Ana Bonaca instant download

The Gaia mission has triggered major developments in the field of Galactic dynamics in recent years, which wediscuss in this review. The structure and kinematics of all Galactic components – disc, bar/bulge and halo – arenow mapped in great detail not only in the Solar neighbourhood, but across a large part of the Milky Way.The dramatic improvements in the coverage and precision of observations revealed various disequilibriumprocesses, such as perturbations in the Galactic disc and the deformations of the outer halo, which are partlyKeywords:attributed to the interaction with satellite galaxies. The knowledge of the gravitational potential at all scalesGalaxy: kinematics and dynamics – Galaxy:has also advanced considerably, but we are still far from having a consistent view on the key properties ofstructurethe Galaxy, such as the bar pattern speed or the mass profile and shape of the dark halo. The complexity andinterplay of several dynamical processes makes the interpretation of observational data challenging, and it isfair to say that more theoretical effort is needed to fully reap the fruit of the Gaia revolution.