Just you might be happy with the previous derivations,
If we start from,
T(x)=A√x
A body experiences gravitational effect wholly due the hot mass behind it, the net effect of all hot mass above the sphere containing the hot mass is zero.
We have the total T(x) behind the body at point x from the center of T.
Total T(x) in a sphere of T(x) of radius x,
MT=∫x04πx2T(x)dx=∫x04πx2A√xdx=8Aπ5x52
Then we consider a hot body of total equivalent mass MT, what is its gravity inward? If we consider spheres of area
4πx2
and the total gravitational flux through them from a unit mass of T, assuming space is empty,
go.4πx2o=g.4πx2
and that at x=xo, G=go.4πx2o
g=G4πx2 per unit mass
G increases with equivalent mass by 8Aπ5x52 as x increases.
gT=G4πx28Aπ5x52=Go√x
where Go=2AG5
This is the gravity due to the mass of T which is here assumed to be proportional to T. It is assumed here that gravity is directly proportional to its mass. gT increase in the square root of x until T=0 at some distance x=L from the hot body.