Discussion Overview
The discussion revolves around the existence of stars in intergalactic space versus their presence within galaxies. Participants explore the conditions under which stars might exist outside of galaxies, including the mechanisms that could lead to such occurrences.
Discussion Character
- Exploratory
- Debate/contested
Main Points Raised
- Some participants assert that stars can exist outside of galaxies, although most are found within them.
- One participant suggests that stars outside of galaxies were likely born within a galaxy and ejected due to events like galactic collisions.
- Another participant proposes that solar systems could also exist outside of galaxies, contingent on similar ejection processes.
- There is a mention of hypervelocity stars as a specific example of stars that may exist outside of galaxies.
- One participant notes that planets can exist outside of galaxies, not bound to any stars.
- Another participant discusses the role of two- or three-body interactions in the ejection of stars, indicating that such events can occur even in stable galaxies.
Areas of Agreement / Disagreement
Participants generally agree that stars can exist outside of galaxies, but there is no consensus on the mechanisms or frequency of such occurrences. Multiple competing views regarding the processes leading to stars being found in intergalactic space remain present.
Contextual Notes
Some assumptions about the conditions necessary for stars to exist outside of galaxies are not fully explored, and the discussion includes varying perspectives on the frequency and mechanisms of star ejection.