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Results tagged with metallicity
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user 42435
Questions regarding the fraction of metal to non-metal elements, with metals being elements other than hydrogen and helium.
5
votes
1
answer
865
views
Why do we talk about metallicity in stars instead of more specific elements?
Metallicity is important to a star's evolution, but why don't we talk about the abundance of specific elements? … I don't imagine that the effect on a star's evolution would be the same if a its metallicity was comprised entirely of one metal as opposed to another. …
- 1,768
1
vote
0
answers
106
views
Is there a metallicity threshold past which star formation is impossible?
I've learned that metallicity is a very important factor to consider when talking about a star's formation and lifecycle. … That gets me wondering whether a high enough metallicity could prevent the formation of proper stars altogether. …
- 1,768
9
votes
1
answer
930
views
Why does metallicity increase the opacity inside stars?
A vague answer I've seen is that it has something do with a greater number of possible excited states, but I don't know what this means for a partially ionized plasma - much less a fully ionized plasm …
- 1,768