Stabilité stellaire - Université de Caen

•
H2+ He
He

S, U
r
ρ
V(P)
T
N∼ N
H72,±10,km.s−1.Mpc−1
G6,673 10−11 m3.kg−1.s−2
N6,022 1023 mol−1
R∗:kBN8,314 J.K−1.mol−1
kB8,617 10−5eV.K−1
c3,108m.s−1
σ5,67 10−8J.m−2.K−4

•
r∼
fm
•
ρ
−~ Grad(P) + ρ ~g = 0
dP (r)
dr =−gρ(r)g(r) = GM(r) r2
g
M(r)=4πZr
0ρr2dr