Notes on Toomre parameter
In HYDROSTATIC EQUILIBRIUM
with
We can write
![[toomre.png]](../images/formulae/toomre.png)
![[toomre2.png]](../images/formulae/toomre2.png)
![[toomre3.png]](../images/formulae/toomre3.png)
![[toomre4.png]](../images/formulae/toomre4.png)