Astrophysics (index)

Stellar Population

(grouping of stars according to metallicity)

A Stellar Population is a grouping of Milky Way stars based upon their Metallicity (Z):

  • Population III (Metal-free) - stars with no metallicity: early and high-mass.
  • Population II (Metal-poor) - stars with low metallicity: next generation stars.
  • Population I (Metal-rich) - current stars, e.g., the Sun.

These show a qualitative Age-Metallicity Relation (AMR). A quantitative relation has been theorized, i.e., that ages could be derived from observed metallicity, but I believe this is not currently considered reliable.


(metallicity,chemistry,Z,measure)
http://en.wikipedia.org/wiki/Stellar_population

Referenced by:
Epoch of Reionization (EOR)
Metallicity (Z)
Stellar Population Synthesis (SPS)
Stellar Population Synthesis Code

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