What are proper motion measurements used for in studying stellar orbits?
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- What are the implications of stellar orbits for the stability of planetary systems? How do stellar flybys affect the orbits of planets in other star systems?
- What are chaotic orbits in a gravitational system? What are the limitations of our understanding of stellar orbits?
- How does Doppler spectroscopy reveal information about stellar orbits?
- How does the galactic disk influence the orbits of stars within it? What are visual binaries?
- What are the long-term stability of orbits in hierarchical triple star systems? What are the Kozai-Lidov mechanism and its effects on stellar and planetary orbits?
- How do binary supermassive black holes influence the orbits of stars in galactic nuclei? What are the gravitational wave recoil effects from supermassive black hole mergers, and how might they affect the orbits of stars?
- How are orbital elements determined?
- What are the orbits of stellar black holes? How do supernova explosions affect the orbits of binary companions?
- What are runaway stars, and how do they acquire their high velocities? What are the orbits of stars in ultra-faint dwarf galaxies?
- Are there any observed correlations between the properties of stellar orbits and the occurrence of gamma-ray bursts? What are the orbits of stars in galaxies with fast radio bursts?
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