Fractal algorithms in galactic orientations

[petrushka.googol]

Matter that dispersed via the big bang aggregated to form galaxies with definite shapes like spiral, barred-spiral and elliptical.

 

Were these shapes defined by some pre-defined fractal algorithm that imparted symmetries across space?

 

Why is it for example that we can't have a galaxy with a shape like a sphere. (which can be described by a rational number)?

 

I think the same laws that apply to flowers for example also apply at the macroscopic level and this is seen in the phenomena above.

 

Please elicit your opinion.

[md65536]

If you simulate matter with some simple assumptions (initial speed, distribution etc) and known astronomical mechanics, you can end up with common galaxy shapes. I don't think fractal algorithms are necessary, though fractals show up in nature a lot for natural reasons.

 

How would you propose that a spherical galaxy could form, and would the shape be stable? I personally cannot imagine what simple initial conditions could lead to one.

[petrushka.googol]

How would you propose that a spherical galaxy could form, and would the shape be stable? I personally cannot imagine what simple initial conditions could lead to one.

 

A sphere is a circle in 3 D. (by rotation). Hence it is a parabola with eccentricity = 0 rotated about its axis.

 

From school maths -

 

At eccentricity = 0 we get a circle

For 0 < eccentricity < 1 we get an ellipse

for eccentricity = 1 we get a parabola

for eccentricity > 1 we get a hyperbola

My point of view is that to arrive at elliptical galactic shape requires e < 1. (which points to some deterministic algorithm).

It seems more than random chance. RND(x)

Please elicit your viewpoint.

Thanks in advance.