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What do the processes of first, second and third dredge-up do with a

  1. Jan 12, 2012 #1
    What do the processes of first, second and third dredge-up do with a star other than just change its spectrum?
     
  2. jcsd
  3. Jan 12, 2012 #2

    Chronos

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    Re: Dredge-up

    Dredge-ups allow for more efficient chemical enrichment of the interstellar medium, which was probably an important factor in metallizing the early universe.
     
  4. Jan 12, 2012 #3
    Re: Dredge-up

    But it doesn't do anything special to the star it self in terms of lifetime or structure?
     
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