16
Stellar Orbits
•
Thinking of rotation curves, the core shows fixed rotation (
Ω
= constant,
V=
Ω
r, and
κ
=2
Ω
)
•
Differential rotation where V = constant (
Ω
=V
0
/r; then
κ
=√2
Ω
)
•
Ratio of
κ
/
Ω
stays between 1 and 2 for realistic potentials.