How is Gaia data used to map the Milky Way's gravitational potential? How is Gaia data used to study stellar streams and substructures?
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- What are radial velocity measurements used for in studying stellar orbits?
- How does radiation pressure from massive stars affect the orbits of surrounding lower-mass stars or dust grains? What are the orbits of protoplanetary disks around young stars?
- What is the inclination of a stellar orbit?
- Can stellar orbits be used to trace the origin and migration history of stars within galaxies? What is the concept of orbital diffusion, and how does it affect stellar orbits over long timescales?
- What is the habitable zone of a star, and how do stellar orbits influence whether a planet stays within it? How do stellar orbits in binary systems affect the habitability of planets around one or both stars?
- How do these resonances affect stellar orbits? What are the orbits of stars near spiral arms?
- How can perturbations affect stellar orbits? What are hypervelocity stars, and what are their orbits like?
- How do stellar orbits constrain the distribution of mass in the Milky Way's disk? How do stellar orbits probe the dark matter halo of the Milky Way?
- How do the dynamics and stellar orbits in dwarf irregular galaxies differ from those in dwarf spheroidal galaxies? What are the orbits of stars in interacting dwarf galaxy pairs?
- What is evaporation in star clusters? How do stellar orbits in globular clusters provide evidence for dark matter?
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