I have often read that a first generation star went supernova and seeded our solar system. It is well known that stars that go supernova are the source of elements heavier than iron. I guess I am having trouble with these statements for the following reasons:
- The ejected matter from supernovas must be moving at a good fraction of the speed of light. So if the ejected matter is moving this fast, how can it seed our solar system? Wouldn't the ejected matter have to be moving slow enough to attract gravitationally? (Maybe a better question is what does seeded mean in this case because I clearly do not understand.)
- What does a first generation star mean here? Is this a star that was formed earlier in the universe’s life or later on? The reason I ask this if the supernova occurred early on when the expansion of the universe was fast, then I could see how a supernova would seed a solar system.