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Elemental Abundance in Stars - The Curve of Growth

by Daniel1992
Tags: abundance, curve, elemental, growth, stars
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Daniel1992
#1
Dec20-12, 05:22 AM
P: 22
I am studying for my undergraduate Astrophysics module and the lectures notes say that that all abundances are measured relative, in terms of H = 12.00 by mass or number of atoms. Is this correct? I thought it was all based off of Carbon = 12. Am I missing something?
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mfb
#2
Dec20-12, 08:23 AM
Mentor
P: 11,925
The definition of amu (used for isotope masses) depends on carbon-12, maybe you mixed those two definitions?


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