3 years ago

What evidence do we have that the halo population of stars are older than other stars in the galaxy?

Physics

1 answer:

weeeeeb [17]3 years ago

7 0

Answer:

a.They have a smaller proportion of heavy elements.

Explanation:

As a star grows old , its metal content becomes low . Our sun is Population I star which means it is very new . Its metal content is 1.4 % . By the term metal we mean any element heavier than helium . Population II stars are older than population I stars . They will have lesser content of metal . Population III are oldest star group which have metal content as less as .015 % .

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