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14 votes

Are there some (simple) mathematical models which can simulate the cellular/web structure of the universe?

I suppose it depends on your definition of "simple", but I would say "No". Kepler simulations A solar system is simple because you have one dominating mass with orbiting masses ...
pela's user avatar
  • 38.5k
10 votes
Accepted

Are there some (simple) mathematical models which can simulate the cellular/web structure of the universe?

In order to make a cosmic web pattern one can run a physics-based simulation approximating the flow of mass, as in Pela's answer. However, it is also possible to make "phenomenological models&...
Anders Sandberg's user avatar
7 votes
Accepted

Does the Final-Parsec problem apply to stellar collisions?

The "final parsec problem" describes the difficulty in getting two supermassive black holes close enough together that their merger timescale due to gravitational wave emission becomes ...
ProfRob's user avatar
  • 153k
4 votes

Have gas or dust or rock accumulated in our solar system on its 20 orbits around the Milky Way?

How does objects in space accumulate other objects? If we ignore direct, inelastic collisions, the way to capture a passing object is to have an interaction where it loses enough momentum to get ...
Anders Sandberg's user avatar
3 votes

Are there some (simple) mathematical models which can simulate the cellular/web structure of the universe?

Here's a relatively simple way to make fake cosmic web patterns. Unfortunately, it takes a lot of points to make diagrams that resemble the one from Wikipedia, and with relatively small numbers of ...
PM 2Ring's user avatar
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2 votes
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Gas mass and velocity in galaxy

If you look at the paper associated with that table (Table 2 of Lelli+2016c), it describes the columns in the table that you are asking about as model rotation-curve contributions. In other words, for ...
Peter Erwin's user avatar
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2 votes
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Can the collapse of a gas cloud lead to an elliptical structure?

The shape of a collapsing cloud is influenced by various factors, including the initial shape, angular momentum, ability to dissipate heat, and sub-clumping processes. When a gas cloud collapses, it ...
eshaya's user avatar
  • 4,009
2 votes

How do two supermassive black holes reach "the last parsec" in the case of merging galaxies?

There's a paper that gives exactly the formulae you are looking for by Sobolenko et al. (2021). They describe the merger of supermassive black holes as a three-phase process. These phases may overlap ...
ProfRob's user avatar
  • 153k
2 votes
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Why is the dark matter component of MOND important in central regions?

MOND, in generally, does not show a need for dark matter in the central regions of galaxies. The central regions of galaxies outside of galaxy clusters, in contrast, are a problem for cold dark matter ...
ohwilleke's user avatar
  • 143
1 vote

Can the collapse of a gas cloud lead to an elliptical structure?

You said "Due to the conservation of angular momentum disk structures are more likely to form" . Well, there may not be any angular momentum in the first place, so disc structures can not ...
Thomas's user avatar
  • 3,484

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