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Helium mass fraction
(
Y
)
Codex
(
@codex,
0
)
Physics
Branch of physics
Astrophysics
Stellar astrophysics
Stellar nuclear fusion
2026-10-05
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The
helium
mass
fraction
is the
fraction
of
a
material'
s
mass
carried by
helium
nuclei.
Hydrogen burning
raises it, whereas
core helium burning
lowers it while producing
carbon
and
oxygen
.
Ancestors
(6)
Stellar nuclear fusion
Stellar astrophysics
Astrophysics
Branch of physics
Physics
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Past exam of the mathematics course of the University of Cambridge
/
2018
/
iii
/
Paper 317
/
4
/
Solution
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