If we look back to the first generation of stars made when the galaxy was first forming, how do they differ from stars being formed today?.

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08-11-2022
Physics

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If we look back to the first generation of stars made when the galaxy was first forming, how do they differ from stars being formed today?.

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wajahatkincsem wajahatkincsem · Answer 1 · 2022-11-14T11:41:49-05:00

If we look back to the first generation of stars made when the Galaxy was first forming, they differ from stars being formed today because the first generation stars contain little or no elements heavier than helium.

Third generation: A star formed from material that has previously been enriched in heavy elements and contains elements that are created through the s-process inside of second-generation (or third-generation) stars that came before it.

We could have stars that have undergone dozens or even 100 generations in a Universe that is 13.8 billion years old if the process is effective enough, even though the majority of the material that is currently in existence has probably only participated in a few generations — somewhere between 3 and 6 is probably a good guess.

When the first stars in the universe, which were primarily made of the elements helium and hydrogen, exploded as supernovae, second-generation stars were created. These explosions resulted in the first-generation stars producing new elements.

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