What happened to the objects that got ejected into the cluster?
- Some get trapped in the 'classical Oort cloud'! (Levison et al 2010)
- Recall, embedded clusters have radii between ~0.1 and ~1 pc.
Well, not that different from the size of the Oort cloud.
- This similarity led to what we call Random Capture:
- Since the Oort cloud is ≈ the size of the cluster, any comet can be trapped by any star.
- They just have to head off in the same direction.
- Typically a few % of the cluster comets are captured this way.
This represents the end of the first stage of Solar System evolution. In the first ~10Myr:
- The giant planets are there.
- The Sedna population and some (most) of the Oort cloud are there.
- Except for some trivial things (like the Earth), we are done.